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.