Eunice goodei Fauchald 1992

Eunice goodei

Nicidion kinbergi Webster, 1884:320–321, pl. 12: figs. 81–88 [not Eunice kinbergi Ehlers, 1868:306].

Eunice (Nicidion) kinbergi.—Hartman, 1944:124; 1959:313.

MATERIAL EXAMINED.—Holotype of Nicidion kinbergi, USNM 4800, 1 specimen plus 3 slides of prostomium and parapodia, Bermuda, coll. G. Brown Goode.

COMMENTS ON MATERIAL EXAMINED.—The holotype is now in three pieces; the anterior end and two first setigers are mounted on a slide; two other slides contain various parapodia.

DESCRIPTION.—Holotype incomplete, of unknown sex, with 56 setigers; estimated length 16 mm; maximal width 0.75 mm; length through setiger 10, 4 mm. Body dorsally convex, ventrally slightly flattened, basically cylindrical with little indication of taper posteriorly.

Prostomium (Figure 50i) distinctly shorter and narrower than peristomium. Prostomial lobes frontally rounded, dorsally inflated; median sulcus shallow. Eyes posterior to bases of A-I and A-II. Antennae in horseshoe; A-I and A-II close together, separated by gap from A-III, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles digitiform, without articulations. A-I and A-II to posterior peristomial ring; A-III to setiger 1. Peristomium tapering anteriorly. Separation between rings distinct on all sides; anterior ring of total peristomial length. Peristomial cirrus on right side lost; left cirrus short, ovate, possibly in regeneration.

Jaws not examined.

Branchiae absent.

Anterior neuropodial acicular lobes truncate, becoming conical in posterior setigers; aciculae emerging at midline. Presetal lobes low, transverse folds. Anterior postsetal lobes rounded, longer than acicular lobes, becoming low, transverse folds at about setiger 20. Anterior ventral cirri tapering, becoming basally inflated by setiger 10. Inflated bases large, nearly hemispherical; narrow tips short and button-shaped. Inflated bases rapidly reduced posteriorly, absent by setiger 40. Posterior ventral cirri slender and digitiform. Anterior notopodial cirri basally slightly inflated, tapering to slender tips; inflated bases lost posteriorly; last notopodial cirri present slender, digitiform. Notopodial cirri without articulations.

Limbate setae marginally smooth with long, thin, filamentous tips. Pectinate setae (Figure 50j) tapering, flat. One marginal tooth longer than other teeth, with 10 teeth. Shafts of compound falcigers (Figure 50k,m) inflated, marginally smooth. Appendages tapering, bidentate. Proximal teeth tapering, directed slightly distally in most hooks. Distal teeth tapering to sharp or blunt points, directed obliquely distally. Guards symmetrically rounded, marginally smooth; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae with dark yellow to dark brown cores and clear sheaths, sharply pointed, straight; cross-sections round. Subacicular hooks (Figure 50l) with light to dark brown cores and clear sheaths, bidentate. Hooks first present from setiger 23, present in all setigers thereafter, always single (except for replacements). Hooks curved, with distinctly narrowed necks just below heads. Proximal teeth larger than distal teeth, triangular, directed laterally. Distal teeth triangular, nearly erect.

UNKNOWN MORPHOLOGICAL FEATURES.—Jaw structure; setal features associated with posterior setigers; pygidium and anal cirri.

EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—Mx III short and forming part of distal arc with left Mx IV.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 22, 31–42, 56, 58, 59. Unknown Characters: 1, 2, 4, 6, 12, 24, 47, 50, 63.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—None.