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23 results for “Schroederichthys”
Fig. 14 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 14. Parsymphyseal teeth diferences between Schroederichthys maculatus, represented by circles, and S. saurisqualus represented by triangles. Abbreviations: BCW, basal crown width; CH, crown height; DPCPH, distal proximal cusplet height; MCW, mid-crown width; MPCPH, mesial proximal cusplet height.
Fig. 15 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 15. Anterior teeth diferences between Schroederichthys maculatus, represented by circles, and S. saurisqualus represented by triangles. Abbreviations: BCW, basal crown width; CH, crown height; DPCPH, distal proximal cusplet height; MCW, mid-crown width; MPCPH, mesial proximal cusplet height.
Fig. 10 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 10. Neurocranium of Schroederichthys saurisqualus, UERJ uncatalogued, male, 580 mm TL. A, dorsal, B, ventral, C, lateral views. Abbreviations: Scale bar = 10 mm.
Fig. 6 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 6. Dermal denticles of Schroederichthys saurisqualus, A–C, UERJ uncatalogued, female, 606.2 mm TL; D–F, UERJ uncatalogued, male, 580 mm TL. A, D, region above pectoral fin base; B, E, region below first dorsal fin origin; C, F, region below second dorsal fin insertion. Scale bar =100 um.
Fig. 4 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 4. External morphology of Schroederichthys saurisqualus, UERJ uncatalogued, female, 606.2 mm TL; external morphology. A, lateral and B, ventral views. Scale bar =10 cm.
Fig. 5 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 5. Close-ups of Schroederichthys saurisqualus. A, ventral view of head, UERJ uncatalogued, female, 606.2 mm TL; B, ventral view of head, UERJ uncatalogued, male, 580 mm TL; C, lateral view of head, UERJ uncatalogued, female, 606.2 mm TL. Scale bar =10 cm.
Fig. 7 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 7. Teeth of a female specimen of Schroederichthys saurisqualus, UERJ uncatalogued, female, 564 mm TL. Scale bars =100 um. Abbreviations: a, anterior; c, commissural; lp, lateroposterior; ps, parassymphysial; s, sympshysial.
Fig. 11 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 11. Dorsal view of the neurocranium of Schroederichthys saurisqualus, UERJ. A, UERJ uncatalogued, female, 564 mm TL. B, UERJ uncatalogued, male, 580 mm TL. Scale bar =10 mm.
Fig. 2 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 2. Holotype of Schroederichthys maculatus, USNM 185556, male, 328 mm TL; external morphology. A, lateral and B, ventral views. Scale bar =10 cm.
Fig. 16 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 16. Comissural teeth diferences between Schroederichthys maculatus, represented by circles, and S. saurisqualus represented by triangles. Abbreviations: BCW, basal crown width; CH, crown height; DPCPH, distal proximal cusplet height; MCW, mid-crown width; MPCPH, mesial proximal cusplet height.
Fig. 13. Hyoid and gill arches. A, B in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 13. Hyoid and gill arches. A, B, Schroederichthys maculatus, USNM 187690, male, 325 mm TL; C, D, Schroederichthys saurisqualus, UERJ uncatalogued, male, 580 mm TL. A-C, dorsal view; B-D, ventral view. Scale bar =10 mm.
Fig. 12 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 12. Ventral view of jaws. A, Schroederichthys maculatus, USNM 187690, male, 325 mm TL; B, Schroederichthys saurisqualus, UERJ uncatalogued, male, 580 mm TL. Scale bar =20 mm.
Table 2 Table 2 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
<p><b>Table 2</b> Morphometric and meristic data of <i>Schroederichthys saurisqualus</i>. Data presented here are compared with data provided by Soto (2001) and Pagnoncelli (2009). Total length (TL) in mm, other measurements as percentages of TL. Numbers of specimens examined in parenthesis.</p><table><tbody><tr><th>Characters</th><th>Soto (2001) (n =8)</th><th>Pagnoncelli (2009) (n =30)</th><th>Present study (n =19)</th></tr></tbody><tbody><tr><th>Total length (TL)</th><td>92.0–692.0</td><td>320.0–650.0</td><td>293.8–626.9</td></tr><tr><th>Precaudal length</th><td>77.5–82.4</td><td>80.5–87.5</td><td>78.7–84.1</td></tr><tr><th>Eye-spiracle length</th><td>–</td><td>–</td><td>0.5–0.7</td></tr><tr><th>Prenasal length</th><td>2.1–4.5</td><td>1.9–3.4</td><td>1.8–3.1</td></tr><tr><th>Preoral length</th><td>3.5–5.9</td><td>3.2–4.2</td><td>2.2–4.4</td></tr><tr><th>Preorbital length</th><td>4.0–6.9</td><td>3.8–4.7</td><td>4.0–5.3</td></tr><tr><th>Prespiracular length</th><td>7.4–13.0</td><td>5.0–7.8</td><td>7.1–9.1</td></tr><tr><th>Prebranchial length</th><td>10.4–16.1</td><td>9.8–12.6</td><td>10.6–12.3</td></tr><tr><th>Head length</th><td>13.4–18.7</td><td>13.9–15.9</td><td>12.5–15.7</td></tr><tr><th>Prepectoral length</th><td>12.4–18.2</td><td>12.0–15.4</td><td>12.7–16.0</td></tr><tr><th>Prepelvic length</th><td>29.5–35.9</td><td>30.2–33.8</td><td>28.5–33.9</td></tr><tr><th>Snout-vent length</th><td>31.3–36.9</td><td>32.2–37.5</td><td>29.0–36.3</td></tr><tr><th>Vent-caudal length</th><td>–</td><td>–</td><td>61.6–68.3</td></tr><tr><th>Pre-first dorsal length</th><td>34.9–39.7</td><td>35.9–41.1</td><td>32.4–39.2</td></tr><tr><th>Interdorsal distance</th><td>6.8–22.3</td><td>17.2–24.1</td><td>18.9–22.8</td></tr><tr><th>Dorsal-caudal distance</th><td>12.9–16.3</td><td>12.6–17.3</td><td>10.1–14.3</td></tr><tr><th>Pectoral-pelvic distance</th><td>12.9–16.3</td><td>12.7–20.2</td><td>13.6–19.4</td></tr><tr><th>Pelvic-anal distance</th><td>15.4–20.8</td><td>17.9–23.4</td><td>17.1–21.1</td></tr><tr><th>Anal-caudal distance</th><td>14.7–18.8</td><td>15.1–20.3</td><td>14.9–18.1</td></tr><tr><th>Interorbital distance</th><td>4.5–9.1</td><td>4.2–5.6</td><td>4.0–5.4</td></tr><tr><th>Internarial distance</th><td>2.0–3.7</td><td>2.0–3.9</td><td>2.3–4.0</td></tr><tr><th>Mouth length</th><td>2.1–3.5</td><td>2.6–5.7</td><td>2.6–4.6</td></tr><tr><th>Mouth width</th><td>4.7–7.6</td><td>4.0–6.4</td><td>4.9–6.5</td></tr><tr><th>Upper labial furrow length</th><td>1.2–2.3</td><td>1.2–2.8</td><td>1.2–2.7</td></tr><tr><th>Lower labial furrow length</th><td>1.2–2.1</td><td>1.0–2.1</td><td>1.3–2.3</td></tr><tr><th>Eye length</th><td>2.9–4.7</td><td>3.4–5.6</td><td>3.2–3.8</td></tr><tr><th>Eye height</th><td>–</td><td>–</td><td>1.3–1.8</td></tr><tr><th>Spiracle length</th><td>0.4–0.7</td><td>0.7–1.2</td><td>0.5–1.2</td></tr><tr><th>First gill slit height</th><td>1.2–2.0</td><td>1.5–2.6</td><td>1.5–2.6</td></tr><tr><th>Fifth gill slit height</th><td>0.9–1.3</td><td>0.8–2.1</td><td>0.8–1.4</td></tr><tr><th>Pectoral length</th><td>8.2–11.0</td><td>8.2–10.2</td><td>8.2–11.0</td></tr><tr><th>Pectoral anterior margin</th><td>9.5–11.8</td><td>9.0–12.7</td><td>9.7–12.6</td></tr><tr><th>Pectoral base</th><td>3.7–4.3</td><td>3.4–4.9</td><td>3.0–4.6</td></tr><tr><th>Pectoral posterior margin</th><td>5.5–8.4</td><td>6.2–8.3</td><td>5.7–8.9</td></tr><tr><th>Pectoral inner margin</th><td>4.0–5.3</td><td>4.1–5.7</td><td>4.7–5.8</td></tr><tr><th>Pelvic length</th><td>7.9–9.8</td><td>8.2–10.9</td><td>7.3–10.5</td></tr><tr><th>Pelvic anterior margin</th><td>5.2–6.6</td><td>5.5–6.7</td><td>5.4–7.3</td></tr><tr><th>Pelvic posterior margin</th><td>4.5–7.2</td><td>4.4–5.8</td><td>4.0–6.5</td></tr><tr><th>Pelvic base</th><td>3.2–5.1</td><td>4.9–6.5</td><td>3.7–6.2</td></tr><tr><th>Pelvic inner length</th><td>4.2–5.4</td><td>3.1–4.5</td><td>2.8–7.5</td></tr><tr><th>Clasper outer length</th><td>1.8–7.6</td><td>1.9–8.4</td><td>2.1–8.4</td></tr><tr><th>Clasper inner length</th><td>4.2–10.4</td><td>4.4–11.4</td><td>4.4–11.3</td></tr><tr><th>Clasper base width</th><td>0.6–1.6</td><td>0.9–2.1</td><td>0.6–2.0</td></tr><tr><th>Anal anterior margin</th><td>5.2–6.7</td><td>4.5–7.7</td><td>4.4–8.1</td></tr><tr><th>Anal posterior margin</th><td>4.9–8.5</td><td>5.1–6.4</td><td>5.0–7.1</td></tr><tr><th>Anal base</th><td>7.4–8.7</td><td>7.3–10.4</td><td>6.0–10.1</td></tr><tr><th>Anal height</th><td>1.8–5.0</td><td>1.9–3.0</td><td>2.2–6.5</td></tr><tr><th>Anal inner margin</th><td>1.7–4.1</td><td>1.9–4.2</td><td>1.9–3.2</td></tr><tr><th>First dorsal anterior margin</th><td>7.1–8.3</td><td>6.9–8.4</td><td>7.2–8.3</td></tr><tr><th>First dorsal base</th><td>3.2–7.7</td><td>3.6–5.9</td><td>3.4–5.9</td></tr><tr><th>First dorsal height</th><td>3.0–7.3</td><td>3.1–5.9</td><td>3.8–5.9</td></tr><tr><th>First dorsal inner margin</th><td>2.4–5.3</td><td>2.2–4.8</td><td>2.0–3.1</td></tr><tr><th>Second dorsal anterior margin</th><td>8.3–10.4</td><td>7.2–10.3</td><td>7.9–10.4</td></tr><tr><th>Second dorsal base</th><td>5.8–6.8</td><td>5.4–6.7</td><td>4.6–8.1</td></tr><tr><th>Second dorsal height</th><td>3.7–6.1</td><td>4.4–5.7</td><td>2.8–5.9</td></tr><tr><th>Second dorsal inner margin</th><td>2.6–3.9</td><td>2.2–3.5</td><td>2.5–3.6</td></tr><tr><th>Dorsal caudal margin</th><td>15.6–18.3</td><td>15.3–18.4</td><td>15.9–21.3</td></tr><tr><th>Preventral caudal margin</th><td>5.9–8.9</td><td>5.5–8.6</td><td>5.5–9.2</td></tr><tr><th></th><td>6.4–11.0</td><td>–</td><td>6.7–13.4</td></tr><tr><th>Postventral caudal margin</th><td></td><td></td><td></td></tr><tr><th>Subterminal caudal margin</th><td>2.8–3.8</td><td>2.8–6.9</td><td>2.9–6.9</td></tr><tr><th>Terminal caudal margin</th><td>3.2–5.7</td><td>2.8–4.4</td><td>3.3–4.6</td></tr><tr><th>Head width</th><td>–</td><td>–</td><td>8.2–9.6</td></tr><tr><th>Head height</th><td>–</td><td>–</td><td>3.0–3.9</td></tr><tr><th>Caudal peduncle width</th><td>–</td><td>–</td><td>0.8–1.9</td></tr><tr><th>Caudal peduncle height</th><td>–</td><td>–</td><td>1.2–2.0</td></tr><tr><th><i>Meristics</i></th></tr><tr><th>Mandibular pores</th><td>–</td><td>–</td><td></td></tr><tr><th>Hyomandibular pores</th><td>–</td><td>–</td><td></td></tr><tr><th>Upper tooth rows</th><td>57–66</td><td>59–67</td><td>53–59</td></tr><tr><th>Lower tooth rows</th><td>37–50</td><td>41–59</td><td>41–47</td></tr><tr><th>Pectoral radial counts</th><td>–</td><td>12–14</td><td>12–15</td></tr><tr><th>Monospondylous vertebrae</th><td>–</td><td>37–40</td><td>36</td></tr><tr><th>Total vertebrae</th><td>–</td><td>155–169</td><td>153–156</td></tr></tbody></table>
Table 1 Table 1 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
<p><b>Table 1</b> Morphometric and meristic data of <i>Schroederichthys maculatus</i>. Data presented here are compared with data provided by Soto (2001) and White et al. (2019). Total length (TL) in mm, other measurements as percentages of TL. Numbers of specimens examined in parenthesis.</p><table><tbody><tr><th>Characters</th><th>Holotype</th><th>Soto (2001) and White et al. (2019) (n =52)</th><th>Present study (n =18)</th></tr></tbody><tbody><tr><th>Total length (TL)</th><td>321</td><td>145–342</td><td>233.4–342.6</td></tr><tr><th>Precaudal length</th><td>80.1</td><td>79.3–83.5</td><td>77.1–85.0</td></tr><tr><th>Eye-spiracle length</th><td>0.9</td><td>–</td><td>0.8–1.3</td></tr><tr><th>Prenasal length</th><td>2.4</td><td>2.4–3.9</td><td>2.0–2.6</td></tr><tr><th>Preoral length</th><td>4.7</td><td>3.1–4.7</td><td>3.5–5.5</td></tr><tr><th>Preorbital length</th><td>5.6</td><td>3.7–5.2</td><td>4.9–6.8</td></tr><tr><th>Prespiracular length</th><td>9.5</td><td>8.0–9.2</td><td>8.3–12.2</td></tr><tr><th>Prebranchial length</th><td>13.4</td><td>9.9–13.1</td><td>10.9–16.1</td></tr><tr><th>Head length</th><td>17.2</td><td>12.9–17.0</td><td>14.3–19.6</td></tr><tr><th>Prepectoral length</th><td>16.2</td><td>12.0–16.3</td><td>12.2–17.8</td></tr><tr><th>Prepelvic length</th><td>31.7</td><td>28.9–33.6</td><td>29.0–39.8</td></tr><tr><th>Snout-vent length</th><td>33.2</td><td>28.7–36.4</td><td>31.7–42.0</td></tr><tr><th>Vent-caudal length</th><td>69.5</td><td>–</td><td>65.9–83.5</td></tr><tr><th>Pre-first dorsal length</th><td>38.4</td><td>34.7–40.8</td><td>35.8–46.9</td></tr><tr><th>Interdorsal distance</th><td>19.2</td><td>17.2–20.0</td><td>15.2–20.5</td></tr><tr><th>Dorsal-caudal distance</th><td>13.6</td><td>13.4–14.2</td><td>9.8–16.5</td></tr><tr><th>Pectoral-pelvic distance</th><td>11.7</td><td>9.6–12.0</td><td>11.5–17.6</td></tr><tr><th>Pelvic-anal distance</th><td>17.3</td><td>14.4–16.1</td><td>14.9–17.9</td></tr><tr><th>Anal-caudal distance</th><td>19.4</td><td>19.2–22.1</td><td>17.6–24.1</td></tr><tr><th>Interorbital distance</th><td>5.8</td><td>5.7</td><td>5.0–6.9</td></tr><tr><th>Internarial distance</th><td>4.5</td><td>–</td><td>3.7–4.6</td></tr><tr><th>Mouth length</th><td>4.2</td><td>1.8–3.9</td><td>3.1–4.5</td></tr><tr><th>Mouth width</th><td>7.0</td><td>5.2–7.5</td><td>5.3–8.2</td></tr><tr><th>Upper labial furrow length</th><td>1.2</td><td>0.6–1.2</td><td>0.9–1.8</td></tr><tr><th>Lower labial furrow length</th><td>1.6</td><td>0.8–1.7</td><td>1.4–2.0</td></tr><tr><th>Eye length</th><td>4.0</td><td>2.7–3.5</td><td>3.4–4.8</td></tr><tr><th>Eye height</th><td>1.4</td><td>–</td><td>1.2–2.1</td></tr><tr><th>Spiracle length</th><td>0.9</td><td>0.5</td><td>0.8–1.5</td></tr><tr><th>First gill slit height</th><td>2.3</td><td>1.2–2.1</td><td>1.8–2.9</td></tr><tr><th>Fifth gill slit height</th><td>1.0</td><td>0.3–1.0</td><td>0.9–1.4</td></tr><tr><th>Pectoral length</th><td>10.4</td><td>9.7–10.3</td><td>10.3–14.1</td></tr><tr><th>Pectoral anterior margin</th><td>11.4</td><td>10.0–11.0</td><td>10.7–15.0</td></tr><tr><th>Pectoral base</th><td>4.6</td><td>4.1–4.3</td><td>3.9–5.4</td></tr><tr><th>Pectoral posterior margin</th><td>6.5</td><td>6.2–11.8</td><td>5.5–7.5</td></tr><tr><th>Pectoral inner margin</th><td>6.2</td><td>4.7–5.1</td><td>4.8–6.4</td></tr><tr><th>Pelvic length</th><td>11.1</td><td>8.9–10.9</td><td>9.6–14.4</td></tr><tr><th>Pelvic anterior margin</th><td>8.3</td><td>5.0–7.2</td><td>5.9–0.4</td></tr><tr><th>Pelvic posterior margin</th><td>5.0</td><td>5.3–6.7</td><td>4.8–8.0</td></tr><tr><th>Pelvic base</th><td>5.2</td><td>3.8–7.1</td><td>5.2–8.8</td></tr><tr><th>Pelvic inner length</th><td>5.6</td><td>4.5–5.5</td><td>4.9–6.7</td></tr><tr><th>Clasper outer length</th><td>6.5</td><td>6.2–6.5</td><td>1.8–7.3</td></tr><tr><th>Clasper inner length</th><td>9.4</td><td>9.0–9.6</td><td>4.6–10.7</td></tr><tr><th>Clasper base width</th><td>1.6</td><td>1.4</td><td>1.0–1.8</td></tr><tr><th>Anal anterior margin</th><td>7.8</td><td>3.4–6.8</td><td>6.2–8.7</td></tr><tr><th>Anal posterior margin</th><td>5.9</td><td>4.8–7.0</td><td>5.3–7.3</td></tr><tr><th>Anal base</th><td>9.6</td><td>6.6–9.5</td><td>9.1–11.3</td></tr><tr><th>Anal height</th><td>2.9</td><td>2.2–3.0</td><td>2.6–3.6</td></tr><tr><th>Anal inner margin</th><td>2.8</td><td>2.9–4.3</td><td>2.4–3.3</td></tr><tr><th>First dorsal anterior margin</th><td>9.5</td><td>6.1–9.6</td><td>8.9–11.5</td></tr><tr><th>First dorsal base</th><td>7.4</td><td>3.5–6.0</td><td>5.6–7.9</td></tr><tr><th>First dorsal height</th><td>5.5</td><td>4.8–5.6</td><td>4.6–6.5</td></tr><tr><th>First dorsal inner margin</th><td>3.2</td><td>2.5–2.9</td><td>2.7–3.6</td></tr><tr><th>Second dorsal anterior margin</th><td>11.0</td><td>6.8–10.8</td><td>10.4–12.9</td></tr><tr><th>Second dorsal base</th><td>8.0</td><td>5.2–8.1</td><td>7.9–10.3</td></tr><tr><th>Second dorsal height</th><td>5.2</td><td>4.8–5.2</td><td>4.8–6.8</td></tr><tr><th>Second dorsal inner margin</th><td>3.2</td><td>2.8–3.8</td><td>2.9–3.8</td></tr><tr><th>Dorsal caudal margin</th><td>19.9</td><td>15.9–20.7</td><td>18.5–22.9</td></tr><tr><th>Preventral caudal margin</th><td>8.9</td><td>6.4–7.0</td><td>7.0–9.5</td></tr><tr><th></th><td>8.5</td><td>7.5–10.5</td><td>8.0–10.5</td></tr><tr><th>Postventral caudal margin</th><td></td><td></td><td></td></tr><tr><th>Subterminal caudal margin</th><td>3.9</td><td>2.8–3.2</td><td>3.4–4.6</td></tr><tr><th>Terminal caudal margin</th><td>3.8</td><td>3.6–4.3</td><td>3.5–5.1</td></tr><tr><th>Head width</th><td>10.9</td><td>–</td><td>8.6–11.8</td></tr><tr><th>Head height</th><td>4.2</td><td>–</td><td>3.9–6.8</td></tr><tr><th>Caudal peduncle width</th><td>2.0</td><td>1.2</td><td>1.8–2.6</td></tr><tr><th>Caudal peduncle height</th><td>2.5</td><td>1.7–2.0</td><td>2.3–3.0</td></tr><tr><th><i>Meristics</i></th><td></td><td></td><td></td></tr><tr><th>Mandibular pores</th><td>–</td><td>–</td><td>5–6</td></tr><tr><th>Hyomandibular pores</th><td>–</td><td>–</td><td>12–14</td></tr><tr><th>Upper tooth rows</th><td>44</td><td>49–54</td><td>44–49</td></tr><tr><th>Lower tooth rows</th><td>37</td><td>33–57</td><td>37–41</td></tr><tr><th>Monospondylous vertebrae</th><td>–</td><td>–</td><td>29–32</td></tr><tr><th>Total vertebrae</th><td>–</td><td>132–135</td><td>138–143</td></tr></tbody></table>
Fig. 3 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 3. Teeth of Schroederichthys maculatus, USNM 187690, male, 325 mm TL. Scale bar =100 um.
Fig. 1 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
Fig. 1. Schematic drawing of tooth measurements.
Table 7 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
<p><b>Table 7</b> Angle of tooth basal concavity and principal cusp deviation for specimens of <i>Schroederichthys saurisqualus</i>. Values referred to the male specimen are presented in parentheses.</p><table><tbody><tr><th>Measurements</th><th><i>Schroederichthys saurisqualus</i></th></tr><tr><th>S</th><th>ps</th><th>a</th><th>lp</th><th>c</th></tr></tbody><tbody><tr><th>Basal concavity</th><td>0</td><td>0</td><td>0–8.88</td><td>11.47–11.05</td><td>0–13.16</td></tr><tr><td></td><td></td><td>(7.65-19-14)</td><td>(10.51–15.37)</td><td>(11.77–21.25)</td></tr><tr><th>Principal cusp deviation</th><td>3.73</td><td>2.07–10.44</td><td>0.24–0.34</td><td>9,84–29.67</td><td>12.34–31.29</td></tr><tr><td>(6.13</td><td>(0–2.77)</td><td>(3.19–10.13)</td><td>(2.23–18.26)</td><td>(0–14.25)</td></tr></tbody></table>
Table 5 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
<p><b>Table 5</b> Angle of tooth basal concavity and principal cusp deviation for specimens of <i>Schroederichthys maculatus</i>.</p><table><tbody><tr><th>Measurements</th><th><i>Schroederichthys maculatus</i></th></tr><tr><th>ps</th><th>a</th><th>al</th><th>l</th><th>p</th><th>c</th></tr></tbody><tbody><tr><th>Basal concavity Principal cusp deviation</th><td>0–16.11</td><td>19.7–30.89</td><td>6.56–19.07</td><td>0</td><td>0–19.71</td><td>0–8</td></tr><tr><td>2.15–6.15</td><td>1.14–3.25</td><td>8.96–9.36</td><td>23.2</td><td>0.45–6.05</td><td>10.93–17.32</td></tr></tbody></table>
Table 6 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
<p><b>Table 6</b> Measurements of tooth in percentages of crown height for specimens of <i>Schroederichthys saurisqualus</i>. Values referred to the male specimen are presented in parentheses.</p><table><tbody><tr><th>Measurements</th><th><i>Schroederichthys saurisqualus</i></th></tr><tr><th>S</th><th>ps</th><th>a</th><th>lp</th><th>c</th></tr></tbody><tbody><tr><th>Crown height (in millimeters)</th><td>0.6</td><td>0.58–0.62</td><td>0.81–1.02</td><td>0.60–0.77</td><td>0.36–0.49</td></tr><tr><td>(0.5)</td><td>(0.68–0.74)</td><td>(0.89–1.06)</td><td>(0.74–0.82)</td><td>(0.62–0.65)</td></tr><tr><th>Basal crown width</th><td>80.7</td><td>81.0–122.6</td><td>87.7–100</td><td>102.7–112.2</td><td>169.4–222.2</td></tr><tr><td>(66.7)</td><td>(67.6–81.1)</td><td>(74.2–114.2)</td><td>(149.4–156.7)</td><td>(177.4–187.7)</td></tr><tr><th>Mid-crown width</th><td>29.8</td><td>31.0–33.9</td><td>27.2–31.4</td><td>36.5–36.6</td><td>44.9–47.2</td></tr><tr><td>(29.6)</td><td>(29.4–40.5)</td><td>(27.0–41.5)</td><td>(58.3–58.4)</td><td>(56.5–60.0)</td></tr><tr><th>Proximal cusplets height</th><td>43.9–63.2</td><td>69.0–71.0</td><td>60.5–63.7</td><td>47.3–75.6</td><td>75.0–87.8</td></tr><tr><td>(77.8)</td><td>(55.9–56.8)</td><td>(57.3–60.4)</td><td>(65.0–72.7)</td><td>(74.2–81.5)</td></tr><tr><th>Marginal cusplets height</th><td>–</td><td>44.8–50.0</td><td>27.2–33.3</td><td>18.9–63.4</td><td>58.3–67.3</td></tr><tr><td></td><td>()</td><td>()</td><td>(49.4–51.7)</td><td>(46.8–76.9)</td></tr></tbody></table>
Table 4 in Redescription and anatomical investigation of Schroederichthys maculatus Springer, 1966 and S. saurisqualus Soto, 2001 with comments on their systematics (Chondrichthyes: Carcharhiniformes: Atelomycteridae)
<p><b>Table 4</b> Measurements of tooth in percentages of crown height for specimens of <i>Schroederichthys maculatus</i>.</p><table><tbody><tr><th>Measurements</th><th><i>Schroederichthys maculatus</i></th></tr><tr><th>ps</th><th>a</th><th>al</th><th>l</th><th>p</th><th>c</th></tr></tbody><tbody><tr><th>Crown height (in millimeters)</th><td>0.5–0.7</td><td>0.7–0.9</td><td>0.6</td><td>0.5</td><td>0.4–0.5</td><td>0.3–0.5</td></tr><tr><th>Basal crown width</th><td>66.7–78.0</td><td>78.0–81.7</td><td>85.7–96.9</td><td>147.9</td><td>102.3–129.6</td><td>171.7–175.8</td></tr><tr><th>Mid-crown width</th><td>37.9–42.0</td><td>31.9–35.2</td><td>38.1–42.2</td><td>58.3</td><td>39.5–48.1</td><td>58.7–63.6</td></tr><tr><th>Proximal cusples height</th><td>36.4–42.0</td><td>35.2–44.0</td><td>28.6–46.9</td><td>39.6–54.2</td><td>39.5–40.7</td><td>45.5–47.8</td></tr><tr><th>Marginal cusplets height</th><td>–</td><td>–</td><td>–</td><td>–</td><td>–</td><td>48.5</td></tr></tbody></table>
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