A Review of the Genus Eunice - Smithsonian Institution Libraries

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SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
a. g
d. e. t. h, i
FIGURE 58.—Eunice interrupta (holotype, USNM 5211): a, anterior end, lateral view; b, parapodium 53, anterior
view; c, acicula, parapodium 53; d, compound falciger, parapodium 53; e, subacicular hook, parapodium 53.
Eunice jagori (holotype, ZMB F2003): f, compound falciger, parapodium 53; g, anterior end, lateral view; h,
subacicular hook, parapodium 44; i, pectinate seta, parapodium 44; j, parapodium 44, anterior view. (Scale bars
in mm.)
digitiform from about setiger 35. Notopodial cirri slender, with
up to 5 distinct articulations; articulations present in all
setigers.
Shafts of compound falcigers (Figure 47d) inflated, marginally
smooth. Appendages thick, relatively short, with large
heads, bidentate. Proximal teeth smaller than distal teeth,
tapering, directed laterally. Distal teeth thick, bent, with small
notch sometimes appearing as rudimentary third teeth. Guards
nearly symmetrically sharply pointed; mucros absent. Pseudocompound
falcigers and compound spinigers absent. Aciculae
(Figure 48c) paired, yellow, tapering, gently curved;
cross-sections round. Separation between core and sheath
indistinct in both aciculae and subacicular hooks. Subacicular
hooks (Figure 57e) yellow, tridentate with teeth in a crest.
Hooks first present from setiger 24-27, present in all setigers
thereafter, always single (except for replacements). Hooks with
3 very large fangs decreasing evenly from main to distal fangs.
UNKNOWN MORPHOLOGICAL FEATURES.—Relationship be-