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180 results for “Scyliorhinus”
Fig. 1 in Stable isotopes provide evidence of a trophic shift in the lesser spotted dogfish Scyliorhinus canicula from the Central Tyrrhenian Sea Abstract
Fig. 1: Fishing area in the Tyrrhenian Sea (black triangle) where specimens of S. canicula were obtained during 2017-2018.
Figure 4. Scyliorhinus weemsi n in Early Oligocene (Rupelian) fishes (Chondrichthyes, Osteichthyes) from the Ashley Formation (Cooper Group) of South Carolina, USA
Figure 4. Scyliorhinus weemsi n. sp. teeth from the Givhans Ferry Member, Ashley Formation (Rupelian), Dorchester County, South Carolina. A–D. holotype, SC2007.36.133 in mesial (A), lingual (B), labial (C), and basal (D) views. E–G. paratype, SC2015.29.7 in mesial (E), lingual (F), and labial (G) views. H–J. SC 2015.29.8 in mesial (H), lingual (I), and labial (J) views. K–M. SC2007.36.6 in mesial (K), lingual (L), and labial (M) views. N–P. SC2015.29.6 in mesial (N), lingual (O), and labial (P) views. Q–S. SC2007.36.160 in distal (Q), lingual (R), and labial (S) views. T–V. SC2007.36.203 in mesial (T), lingual (U), and labial (V) views. W–Y. SC2007.36.204 in distal (W), lingual (X), and labial (Y) views. Z–BB SC2007.36.205 in distal (Z), lingual (AA), and labial (BB) views. Scale=0.5 mm in A–D, H–BB, and 1 mm in E–G.
Magnetic Resonance Imaging Scan of the Brain of a Nursehound (Scyliorhinus stellaris)
<p>Magnetic Resonance Imaging Scan of the Brain of a Nursehound (<i>Scyliorhinus stellaris</i>) from http://braincatalogue.org/Nursehound</p>
FIGURES 13–18. Ahamulina catarina n. gen. n in Ahamulina n. gen. (Cestoda: Diphyllidea) from the polkadot catshark, Scyliorhinus besnardi (Carcharhiniformes: Scyliorhinidae), off Brazil
FIGURES 13–18. Ahamulina catarina n. gen. n. sp. from Scyliorhinus besnardi. Figs 13–17. Histological sections. 13. Sagittal section through scolex showing bothria free posteriorly for most of their length. 14. Cross section through proglottid at level of testes. 15. Cross section through proglottid at level of genital pore. 16. Cross section through proglottid at level of ovarian bridge. 17. Cross section through proglottid posterior to ovarian bridge. 18. Whole mount of egg; arrow indicates subterminal knob. Abbreviations: AO, apical organ; BO, bothrium; DEV, dorsal excretory vessel; GP, genital pore; MG, Mehlis' gland; O, ovary; OC, ovicapt; T, testis; UD, uterine duct; UT, uterus; V, vitelline follicle; VA, vagina; VEV, ventral excretory vessel; VR, vitelline reservoir.
FIGURES 6–12 in Ahamulina n. gen. (Cestoda: Diphyllidea) from the polkadot catshark, Scyliorhinus besnardi (Carcharhiniformes: Scyliorhinidae), off Brazil
FIGURES 6–12. Scanning electron micrographs of Ahamulina catarina n. gen. n. sp. from Scyliorhinus besnardi. 6. Scolex; small numbers indicate location of microthrix images in Figs. 9–12. 7. Detail of apical organ; small number indicates location of detail in Fig. 8. 8. Enlarged view of surface of apical organ. 9. Enlarged view of trifurcate spinitriches on distal bothrial surface. 10. Enlarged view of trifurcate spinitriches on proximal bothrial surface (see arrow). 11. Enlarged view of cephalic peduncle. 12. Enlarged view of anterior of strobila.
FIGURES 1–5 in Ahamulina n. gen. (Cestoda: Diphyllidea) from the polkadot catshark, Scyliorhinus besnardi (Carcharhiniformes: Scyliorhinidae), off Brazil
FIGURES 1–5. Line drawings of Ahamulina catarina n. gen., n. sp. from Scyliorhinus besnardi. 1. Holotype (MZUSP 6487a). 2. Scolex of holotype (MZUSP 6487a). 3. Detail of apical hooks of holotype (MZUSP 6487a). 4. Gravid proglottid of paratype, eggs not shown (USNPC 105708); small numbers at arrows indicate location at which sections in Figs. 14–17 were taken. 5. Detail of terminal genitalia of gravid proglottid of the paratype (USNPC 105708). Abbreviations: CS, cirrus sac; GP, genital pore; OC, ovicapt; OV, ovary; VA, vagina; VD, vas deferens.
FIGURE 9 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 9. Distribution of Scyliorhinus ugoi sp. nov. Yellow diamonds represent records of type series, and white star locality of the holotype.
FIGURE 4 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 4. Nostrils and mouth of Scyliorhinus ugoi sp. nov., MNRJ 42619, female, 500 mm TL. Scale bar: 2 cm.
FIGURE 2 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 2. Scyliorhinus ugoi sp. nov. A) Dorsal view of the head of a female, MNRJ 42619, female, 500 mm TL. B) Dorsal view of the head of a male, UERJ 2179, 419 mm TL. C) Lateral view of head, UERJ 2179 male, 419 mm TL. D) First dorsal fin. E) Second dorsal fin. F) Anal fin. G) Caudal fin. H) Ventral view of trunk, MNRJ 42619, female, 500 mm TL. Scale bars: 2 cm.
FIGURE 1 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 1. Scyliorhinus ugoi sp. nov., holotype, MNRJ 42619, female, 500 mm TL. A) Dorsal view. B) Lateral view; paratype, UERJ 2179, male, 419 mm TL. C) Dorsal view. D) Lateral view. Scale bar: 5 cm.
FIGURE 6 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 6. Pectoral fin skeleton of Scyliorhinus ugoi sp. nov., UERJ 1722, female, 600 mm TL. Scale bar: 2 cm. DRA, distal segment; MES, mesopterygium; MET, metapterygium; MTS, metapterygial axis; PRA, proximal segment; PRO, propterygium.
FIGURE 8 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 8. Cranium of Scyliorhinus ugoi sp. nov., UERJ 1725, male, 530 mm TL. A) Dorsal view. B) Ventral view; UERJ 1726, female, 597 mm TL. C) Dorsal view. D) Ventral view. Scale bar = 1 cm. AF, anterior fontanelle; ASC, anterior semicircular canal; CRF, cranial roof; FOE, external foramen of preorbital canal; FPE, external profundus foramen; HF, hyomandibular facet; ICF, internal carotid foramen; IS, internasal septum; LR, lateral rostral cartilage; MR, medial rostral cartilage; NA, nasal aperture; NC, nasal capsule; NF, nasal fontanelle; OC, optic capsule; PEP, preorbital process; PRF, parietal fossa; PSC, posterior semicircular canal; PT, pterotic process; PTP, postorbital process; SC, supraorbital crest; SF, stapedial foramen; SG, supraorbital groove; SS, suborbital shelf.
FIGURE 7 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 7. Clasper of Scyliorhinus ugoi sp. nov., UERJ 1725, male, 530 mm TL. A) Clasper gland. B) Skeleton. Scale bar = 5 mm. AP, apopyle; CRH, cover rhipidion; G, end-style; EN, envelope; ERH, exorhipidion; HP, hypopyle; RD, marginal dorsal cartilage; RD2, accessory marginal dorsal cartilage; RH, rhipidion; RV, marginal ventral cartilage; TD, terminal dorsal cartilage; TDC, terminal dermal cover; TV, terminal ventral cartilage; TV2, terminal ventral cartilage 2.
FIGURE 5 in Scyliorhinus ugoi, a new species of catshark from Brazil (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 5. Lateral trunk denticles of Scyliorhinus ugoi sp. nov. A–C) UERJ 1726, female, 602 mm TL. D–F) UERJ 1725, adult male, 534 mm TL. A, D) Region above pectoral fin. B, E) Region below first dorsal fin. C, F) Region below second dorsal fin.
FIGURE 25 in Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 25. Hyomandibular arch and branchial skeleton in Scyliorhinus haeckelii (UERJ 1691, male, 522 mm TL). A: dorsal view; B: ventral view. Abbreviations: BBC, basibranchial copula; BH, basihyal; CB, ceratobranchial; CH, ceratohyal; EB, epibranchial; HB, hypobranchial; HMB, hyomandibula; PB, pharyngobranchial; PK, gill pickax. Scale bar = 3 cm.
FIGURE 17 in Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 17. Neurocranium of Scyliorhinus haeckelii. A: dorsal view (UERJ 1690, female, 467 mm TL); B: ventral view of specimen in A; C: dorsal view (UERJ 1689, male, 566 mm TL); D: ventral view of specimen in C. Abbreviations: AF, anterior fontanelle; ASC, anterior semicircular canal; CRF, cranial roof; FOE, external foramen of preorbital canal; FPE, external profundus foramen; HF, hyomandibular facet; ICF, internal carotid foramen; IS, internasal septum; LR, lateral rostral cartilage; MR, medial rostral cartilage; NA, nasal aperture; NC, nasal capsule; NF, nasal fontanelle; PEP, preorbital process; PRF, parietal fossa; PSC, posterior semicircular canal; PT, pterotic process; PTP, postorbital process; SC, supraorbital crest; SF, stapedial foramen; SG, supraorbital groove; SS, suborbital shelf. Scale bar = 1 cm.
FIGURE 18 in Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 18. Sexual dimorphism and ontogenetic changes in color pattern in Scyliorhinus haeckelii. A: females; B: males. All specimens adult except for smaller specimens at right in both A and B (all specimens from UERJ). Scale bar = 2 cm.
FIGURE 14 in Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 14. External clasper of Scyliorhinus haeckelii (UERJ 2233.6, male, 449 mm TL). A: entire clasper in dorsal view; B: insertion of rhipidion on dorsal marginal accessory cartilage. Abbreviations: AP, apopyle; CRH, cover rhipidion; EN, envelope; ERH, exorhipidion; HP, hypopyle; RD2, dorsal marginal accessory cartilage; RH, rhipidion; TDC, terminal dermal cover. Scale bar = 5 mm.
FIGURE 8 in Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 8. Distribution of Scyliorhinus cabofriensis sp. nov. White dot represents all specimens examined, including holotype.
FIGURE 9 in Taxonomic review of catsharks of the Scyliorhinus haeckelii group, with the description of a new species (Chondrichthyes: Carcharhiniformes: Scyliorhinidae)
FIGURE 9. Specimens of Scyliorhinus haeckelii in dorsal and lateral views. A, B: so-called haeckelii pattern (UERJ 2233.4, female, 401 mm TL); C, D: so-called besnardi pattern (UERJ 1496.1, female, 361 mm TL); E, F: 'intermediate' pattern (UERJ 1573, female, 300 mm TL). Scale bars = 2 cm.
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