Eunice kinbergi Ehlers 1868

Eunice kinbergi (Webster, 1884)

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

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

Eunice kinbergi Ehlers, 1868

Eriphyle capensis Kinberg, 1865:561; 1910:41, pl. 15: fig. 16.

Eunice kinbergi Ehlers, 1868:306.

MATERIAL EXAMINED.—Two syntypes, RM Type 1255, Cape of Good Hope, coll. Wahlberg.

COMMENTS ON MATERIAL EXAMINED.—The complete syntype is currently in four pieces. Most illustrations are of the incomplete syntype as indicated in the figure legends.

DESCRIPTION.—One syntype complete, of unknown sex, with 380 setigers; length 398 mm; maximal width 15 mm; length through setiger 10,16 mm. Other syntype incomplete, of unknown sex, with 282 setigers; length 655 mm; maximal width 15 mm; length through setiger 10, 22 mm.

Prostomium (Figure 60d) distinctly shorter and narrower than peristomium, as deep as of peristomium. Each prostomial lobe distinctly divided longitudinally into 2 parts; lateral parts large, frontally rounded, dorsally inflated. Medial parts narrow, frontally angularly rounded. Median sulcus deep, separating prostomium to more than half its length and continued as distinct suture to base of A-III. Palpal region set off by horizontal, frontal grooves. Eyes between bases of A-I and A-II; black. Antennae in transverse row, evenly spaced, similar in thickness. Ceratophores ring-shaped in all antennae, without articulations. Ceratostyles tapering, relatively slender, with up to 13 irregular, cylindrical articulations in A-III. A-I to middle of anterior peristomial ring; A-II to setiger 1; A-III to setiger 1 in one syntype and to setiger 4 in other syntype. Peristomium about twice as wide as prostomium, overall cylindrical, flaring anteriorly, with paired large ventrolateral cushions forming lower lip. Separation between rings distinct dorsally and ventrally; anterior ring of total peristomial length. Peristomial cirri to front end of peristomium, slender and gently tapering, with 5 articulations.

Maxillary formula 1+1,5+5, ?+0,4+9,1+1, and 1+1. Mx III now missing, probably short, forming part of distal arc with left Mx IV-VI judging from compressed shape of left Mx IV.

Branchiae (Figure 60g,h,l) present, pectinate, about as long as notopodial cirri, not reduced in mid-body region, erect. Branchiae from setiger 8–9 to 365. Branchiae present to near posterior end, more than 65% of total number of setigers. First 2 pairs single filaments, maximum 22 filaments from setiger 25, slowly reduced in length and numbers of filaments posteriorly. Stems strong, erect anteriorly and medially, usually held curved posteriorly, shorter than notopodial cirri. Filaments slender, nearly filiform, shorter than notopodial cirri.

Neuropodial acicular lobes asymmetrically triangular with aciculae emerging dorsal to midline. Pre- and postsetal lobes forming low folds around dorsal edge of acicular lobes, especially cut away frontally. First 4 ventral cirri thick, tapering. Ventral cirri basally inflated from about setiger 5. Inflated bases continued to end of body, forming thick, elongated welts along ventral edge of neuropodia. Upper edge of inflated bases wrapped around lower edges of neuropodia, forming shallow scoops; free edge produced as short, thick tapering narrow tips. Notopodial cirri slightly inflated basally, tapering to long, digitiform tips; anterior cirri with 5 cylindrical articulations. Posterior notopodial cirri shorter than anterior ones, but otherwise similar, articulations indistinct, but present.

Limbate setae very slender, marginally smooth. Anterior pectinate setae (Figure 60f) with cylindrical shafts. Blades tapering, furled into open scoops; marginal teeth barely longer than other teeth, with 12 teeth. Posterior pectinate setae (Figure 60j) with flat shafts. Blades completely flattened, otherwise similar to anterior pectinate setae. Shafts of compound falcigers (Figure 60e, i) tapering, marginally smooth, with distinct internal striations; distal peak present. Appendages tapering; heads small, bidentate. Proximal and distal teeth similar in size. Proximal teeth tapering, directed obliquely distally. Distal teeth slender, tapering, distinctly curved. Guards slightly asymmetrically rounded, marginally smooth; mucros absent. Slender, honey-colored notopodial aciculae present in all setigers. Pseudocompound falcigers and compound spinigers absent. Neuropodial aciculae paired, with brown cores and clear sheaths, tapering, blunt-tipped, straight; cross-sections round. Subacicular hooks (Figure 60k) with brown cores and clear sheaths, bidentate. Shorter syntype without subacicular hooks; other syntype with first subacicular hook in setiger 123, next in setiger 135 and scattered thereafter, becoming more frequent in far posterior setigers, where most frequent paired in some, but not all parapodia. Hooks very slender (no thicker than compound hooks), abruptly tapering distally, with distinct heads. Proximal teeth larger than distal teeth, triangular, directed laterally. Distal teeth triangular, nearly erect. Guards symmetrically rounded.

UNKNOWN MORPHOLOGICAL FEATURES.—Pygidium and anal cirri.

EXPECTED STATES OF SELECTED UNKNOWN FEATURES.—None.

CHARACTERS USED IN PREPARATION OF KEY NOT SCORED.—Inappropriate Characters: 56, 60. Unknown Characters: 4,6.

ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—None.