Eunice eimeorum Fauchald 1992

Eunice eimeorum

Eunice pacifica Kinberg, 1865:562 [in part]; 1910:41–42, pl. 15: fig. 15 [in part].—Hartman, 1948:75–76 [in part].

MATERIAL EXAMINED.—Holotype, part of RM 310, Eimeo (= Moorea), Society Islands (Tahiti Islands), Eugenie Expedition.

COMMENTS ON MATERIAL EXAMINED.—The holotype has been dried at one time and the last 20 setigers have been strongly flattened; thus an accurate count of setigers is impossible.

DESCRIPTION.—Holotype incomplete with ∼110 setigers; length 70 mm; maximal width 3.5 mm; length through setiger 10, 7.5 mm.

Prostomium (Figure 40f) distinctly shorter and narrower than peristomium, less than as deep as peristomium. Prostomial lobes frontally rounded, dorsally flattened; median sulcus deep. Eyes posterior to bases of A-I, dark. Antennae in a horseshoe, evenly spaced, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles slender and tapering, with up to 8 long, cylindrical, well-marked articulations in A-III. Three median antennae to posterior peristomial ring; A-III longer than A-II; A-I to middle of anterior peristomial ring. Peristomium massive, cylindrical. Separation between rings distinct dorsally and ventrally; anterior ring ~ of total peristomial length. Peristomial cirri to middle of anterior peristomial ring, medially inflated, without articulations.

Jaws missing.

Branchiae (Figure 40g) present, pectinate, distinctly longer than notopodial cirri, not reduced in mid-body region, erect. Branchiae from setiger 5 to end of fragment. Maximum 5 filaments from about setiger 20; in last setigers present branchiae with 2–3 filaments. Branchial stems short, tapering. Filaments long, slender.

Anterior neuropodial acicular lobes distally truncate; posterior acicular lobes rounded; aciculae emerging at midline. All pre- and postsetal lobes very low, transverse folds, considerably shorter than acicular lobes. Anterior ventral cirri thick, tapering, becoming basally inflated in median setigers. Bases ovate, narrow; tips long and digitiform. Inflated bases apparently reduced posterior to setiger 60–65. All notopodial cirri medially inflated, relatively long, less distinctly basally inflated posteriorly, digitiform in last setigers present, without articulations.

Limbate setae slender, marginally serrated. Shafts of pectinate setae (Figure 40i) thick, cylindrical. Blades narrow, flat, tapering. Marginal teeth no longer than other teeth; about 10 teeth present. Compound falcigers very large (Figure 40h). Shafts tapering, marginally smooth. Appendages very short, truncate, with large heads, bidentate. Proximal teeth very much smaller than distal teeth, slender, tapering, directed distally. Distal teeth distinctly curved or bent, thick, directed obliquely distally. Guards short, asymmetrically bluntly pointed, frayed in most hooks; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae (Figure 40j) paired, clear amber, barely tapering, blunt, curved; cross-section of aciculae round. Subacicular hooks (Figure 40k) clear amber, bidentate. Hooks first present from setiger 38. Hooks slender; neck distinct; head large. Proximal teeth much smaller than distal teeth, triangular, directed obliquely laterally. Distal teeth triangular, erect.

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

EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEATURES.—MX III short, forming part of distal arc with left MX IV.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 56, 60. Unknown Characters: 1, 2, 4, 6, 33, 36–40, 51, 58, 59, 74, 78, 81, 82.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—33,2; 37,1; 38,1.