Eunice makemoana (Chamberlin 1919)

Eunice makemoana (Chamberlin, 1919)

Leodice makemoana Chamberlin, 1919a:233–236, plate 53: figs. 1–11.

MATERIAL EXAMINED.—Holotype, USNM 19396, Makemo, Paumotu Islands (= Tuamotu Archipelago), 21 Oct 1899.

COMMENTS ON MATERIAL EXAMINED.—The holotype and only known specimen of species has been frontally deeply dissected and has been dry at one time; all setae are broken, so no meaningful illustrations can be made. The following remarks are based on Chamberlin's original description in addition to the few observations that could be made on the specimen.

DESCRIPTION.—Holotype complete with 92 setigers; total length 20 mm; maximal width 1 mm; length through setiger 10, 3.5 mm.

Prostomium distinctly shorter than peristomium. Prostomial lobes frontally rounded, dorsally inflated. Eyes behind bases of A-I. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles with up to 15 moniliform articulations in A-III. A-I to middle of peristomium; A-II to setiger 3; A-III to setiger 4.

Maxillary formula (re-written from Chamberlin, 1919a:236): 1+1, 6+7, 8+0, 8+11 (?12), and 1+1.

Branchiae from setiger 7 to 6 setigers from posterior end. Branchiae present to near posterior end, present on more than 65% of total number of setigers. All branchiae single filaments.

Neuropodial acicular lobes distally rounded or truncate. Pre- and postsetal lobes low, transverse folds. First few ventral cirri thick, tapering, becoming basally inflated in anterior branchial region. Posteriorly inflated bases decreasing in importance; far posterior ventral cirri slender, resembling notopodial cirri. All notopodial cirri medially inflated, articulated with relatively short, vague articulations, shorter and more slender in posterior than in anterior setigers.

Pectinate setae tapering, with ~10 coarse teeth. One marginal tooth much longer than other teeth. Shafts of compound falcigers inflated. Appendages short, bidentate. Both teeth distally well curved. Guards asymmetrically bluntly pointed; mucros absent. Pseudocompound falcigers and compound spinigers absent. Aciculae paired, yellow; ventral aciculae slender, distally pointed, curved ventrally; dorsal aciculae thick, distally blunt, possibly slightly hammer-headed; crosssections round. Separation between core and sheath indistinct in both aciculae and subacicular hooks. Subacicular hooks yellow, tridentate with teeth in a crest. Hooks first present from setiger 28. Fangs decreasing in size from large main fang to very small distal fang.

UNKNOWN MORPHOLOGICAL FEATURES.—Many features from all parts of the body.

EXPECTED STATE OF UNKNOWN MORPHOLOGICAL FEATURES.—None.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 33, 34, 39, 40, 42, 58, 59. Unknown Characters: 4, 6, 9, 11, 12, 15–17, 20, 24–29, 44, 51, 54-56, 65, 67, 68, 81, 82.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—None.