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30 results for “Paucibranchia”
Paucibranchia bellii
<p>serial sections/Azan/5µm</p>
FIGURE 6 in Morphometric approach to supports distinction among three species of Paucibranchia Molina-Acevedo, 2018 (Annelida: Eunicidae)
FIGURE 6. Moulting of Paucibranchia bellii (Audouin & Milne-Edwards, 1833) MNHN-AZ779,. A) Anterior region of the body, dorsal view; B) New generation of maxillae, dorsal view; C) Moulting of maxillae. Abbreviations: MI-V: maxillae from I to V, MC: maxillary carrier. Scale bars: A, 1.1 mm; B–C,0.7 mm.
FIGURE 2 in Morphometric approach to supports distinction among three species of Paucibranchia Molina-Acevedo, 2018 (Annelida: Eunicidae)
FIGURE 2. Exploratory analysis. Variation in 23 morphological characters in three Paucibranchia species. See Table 1 for character abbreviations. A. Paucibranchia bellii, B. Paucibranchia carrerai, C. Paucibranchia disjuncta.
FIGURE 1 in Morphometric approach to supports distinction among three species of Paucibranchia Molina-Acevedo, 2018 (Annelida: Eunicidae)
FIGURE 1. Paucibranchia carrerai Molina-Acevedo, 2018. A) Prostomium from juvenile specimen, dorsal view; B) Prostomium from adult specimens, dorsal view; C) Maxillary apparatus, dorsal view; D) Median chaetigers, ventral view; E) Branchial region of the body, dorsal-lateral view; F) Branchial region of the body, ventral view; G) Ventral cirri and postchaetal lobe in branchial region of the body, ventral view; H) Parapodium 3; I) Parapodium 10; J) Parapodium 33; K) Pectinate chaetae, parapodium 10; L) Compound spinigers, parapodium 5; M) Compound falciger, parapodium 10; N) Compound falciger, parapodium 33; O) Subacicular hook, parapodium 33. A, from RRC UMTAnn 01028, B–O, from RRC UMTAnn 01020. E–G, stained with a methylene blue solution. Abbreviations: E, eyes; LE, larval eyes; P, peduncle; DC, dorsal cirri; SH, subacicular hook; Bran, branchiae; DPL, postchaetal lobe development; ECV, ventral cirri with swollen base end; DVC, ventral cirri development; mc, maxillary carrier; cs, closing system; MI, maxilla I; op, opening cavity; MII, maxilla II; MIII, maxilla III; MIV, maxilla IV. Red arrow point out broken dorsal cirrus. Scale bars: A–C, 0.2 mm; D, 0.5 mm; E–G, 0.4 mm; H–J, 100 μm; K, 10 μm; L, 50 μm; M–O, 20 μm.
FIGURE 5 in Morphometric approach to supports distinction among three species of Paucibranchia Molina-Acevedo, 2018 (Annelida: Eunicidae)
FIGURE 5. Correlation between the length at chaetiger 10 (L10) of the specimens with: A) length of the maxillary apparatus (LMa), B) width of the maxillary apparatus (WMa), C) length of the mandibles (LMn), D) length of the dorsal cirrus at chaetiger 10 (LCh10), E) chaetiger where the compound spiniger end (ESp), and F) the number of subacicular hooks per parapodia in chaetigers 20-40 (NSH20-40) of Paucibranchia carrerai. Colorless circles indicate juveniles, blue circles indicate adults.
FIGURE 4. PCA with the first two principal components. A in Morphometric approach to supports distinction among three species of Paucibranchia Molina-Acevedo, 2018 (Annelida: Eunicidae)
FIGURE 4. PCA with the first two principal components. A) Biplot of the 23 morphological variables; B) distribution of all specimens of P. bellii (B), P. carrerai (C), and P. disjuncta (D).
FIGURE 58. Paucibranchia patriciae n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 58. Paucibranchia patriciae n. sp., holotype USNM 90030. A. Parapodium 4; B. Parapodium 10; C. Parapodium 22; D. Parapodium 63; E. Parapodium 89, dorsal cirri broken. All in anterior view. Scale bars: A–D, 0.1 mm; E, 0.07 mm.
FIGURE 52. Paucibranchia miroi n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 52. Paucibranchia miroi n. sp., holotype USNM 1233966. A. Isodonts pectinate narrow with long and slender teeth, chaetiger 10; B. Isodonts pectinate narrow with short and slender teeth, chaetiger 68; C. Compound falciger, median blade, chaetiger 2; D. Compound falciger, median blade, chaetiger 68; E. Subacicular hook, chaetiger 68; F. Aciculae and subacicular hook, chaetiger 26; G. Aciculae and subacicular hook, chaetiger 68. Scale bars: A, 14 µm; B, 6 µm; C, 27.5 µm; D, 25 µm; E, 50 µm; F, G, 2.5 mm.
FIGURE 45. Paucibranchia gilberti n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 45. Paucibranchia gilberti n. sp., holotype USNM 90018. A. Isodonts pectinate narrow with long and slender teeth, chaetiger 19; B. Isodonts pectinate narrow with short and slender teeth, chaetiger 125; C. Compound spiniger, short blade, chaetiger 19; D. Compound spiniger, median blade, chaetiger 4; E. Compound spiniger, long blade, chaetiger 4; F. Subacicular hook unidentante, chaetiger 79. Scale bars: A, 12 µm; B, 20 µm; C, D, E, 10.5 µm; F, 20 µm.
FIGURE 42. Paucibranchia gilberti n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 42. Paucibranchia gilberti n. sp., holotype USNM 90018. A. Anterior end, dorsal view; B. Anterior end, ventral view; C. Anterior end with branchiae, lateral view. Scale bars: A, B, C, 0.9 mm.
FIGURE 43. Paucibranchia gilberti n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 43. Paucibranchia gilberti n. sp., holotype USNM 90018. A. Maxillary apparatus, dorsal view; B. Left MI-II-III-IV, dorsal view; C. Mandibles. Scale bars: A, 0.6 mm; B, 0.15 mm C, 0.2 mm.
FIGURE 37. Paucibranchia gathofi n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 37. Paucibranchia gathofi n. sp., holotype USNM 90025. A. Isodonts pectinate narrow with long and slender teeth, chaetiger 22; B. Isodonts pectinate narrow with short and slender teeth, chaetiger 59; C. Compound falciger, long blade, chaetiger 22; D. Compound falciger, median blade, chaetiger 22; E. Compound falciger, median blade, chaetiger 55; F. Compound falciger, short blade, chaetiger 55; G. Aciculae, chaetiger 55; H. Subacicular hook, chaetiger 55. Scale bars: A, 14 µm; B, 7 µm; C, 45 µm; D, 22.5 µm; E, 19 µm; F, 15 µm; G, 5 µm; H, 10.5 µm.
FIGURE 35. Paucibranchia gathofi n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 35. Paucibranchia gathofi n. sp., holotype USNM 90025. A. Anterior end, dorsal view; B. Anterior end, ventral view; C. Anterior end with branchiae, dorsal view. Scale bars: A–C, 0.3 mm.
FIGURE 51. Paucibranchia miroi n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 51. Paucibranchia miroi n. sp., holotype USNM 1233966. A. Parapodium 2; B. Parapodium 10; C. Parapodium 26; D. Parapodium 68. All in anterior view. Scale bars: A, B, 0.4 mm; C, D, 0.6 mm.
FIGURE 57. Paucibranchia patriciae n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 57. Paucibranchia patriciae n. sp., holotype USNM 90030. A. Anterior end, dorsal view; B. Anterior end, ventral view; C. Anterior end with branchiae, dorsal view; D. Maxillary apparatus, dorsal view. Scale bars: A–C, 0.5 mm; D. 0.25 mm.
FIGURE 36. Paucibranchia gathofi n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 36. Paucibranchia gathofi n. sp., holotype USNM 90025. A. Parapodium 5; B. Parapodium 22; C. Parapodium 55; D. Parapodium 69. All in anterior view. Scale bars: A, B, 0.20 mm; C, 90 µm; D, 0.12 mm.
FIGURE 44. Paucibranchia gilberti n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 44. Paucibranchia gilberti n. sp., holotype USNM 90018. A. Parapodium 3; B. Parapodium 9; C. Parapodium 20, dorsal cirri broken; D. Parapodium 39, dorsal cirri broken; E. Parapodium 79, dorsal cirri broken. All in anterior view. Scale bars: A, B, 0.1 mm; C, 0.3 mm, D, E, 0.2 mm.
FIGURE 50. Paucibranchia miroi n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 50. Paucibranchia miroi n. sp., holotype USNM 1233966. A. Anterior end with branchiae, dorsal view; B. Anterior end, dorsal view; C. Maxillary apparatus, dorsal view; D. Right MI-II, dorsal view; E. Mandibles. Scale bars: A, 3.3 mm; B, 2.2 mm; C, E 1.2 mm; D, 0.3 mm.
FIGURE 59. Paucibranchia patriciae n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 59. Paucibranchia patriciae n. sp., holotype USNM 90030. A. Isodonts pectinate narrow with long and slender teeth, chaetiger 4; B. Isodonts pectinate narrow with short and slender teeth, chaetiger 89; C. Compound falciger, median blade, chaetiger 4; D. Compound falciger, short blade, chaetiger 89; E. Subacicular hook, chaetiger 89. Scale bars: A, B, 7 µm; C, 9.5 µm; D, 15.4 µm; E, 10.5 µm.
FIGURE 9. Paucibranchia andresi n in Morphological revision of the Subgroup 1 Fauchald, 1970 of Marphysa de Quatrefages, 1865 (Eunicidae: Polychaeta)
FIGURE 9. Paucibranchia andresi n. sp., holotype USNM 28955. A. Parapodium 3; B. Parapodium 8; C. Parapodium 14; D. Parapodium 55; E. Parapodium 213. All in anterior view. Scale bars: A, 0.17 mm; B, D, E, 0.2 mm; C, 0.4 mm.
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