A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 185
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 34, 56. Unknown
Characters: 1, 2, 4, 6, 36-40, 42, 47, 50, 57-60, 63, 65, 67.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,2;
38,2.
REMARKS.—The type is not in very good condition; most of
the setae are now broken. The specimen is very small and
appears juvenile. It has the structure of a specimen of group
C-2; the pectinate setae as illustrated by Averincev resemble
those present in E. vittata and related species in group C-l. The
specimen is sufficiently incomplete that the branchial distribution
cannot be accurately determined. The species is compared
both to species in group C-l and C-2 in Tables 41 and 43 as
well as in Tables 46 and 49. It is the only species in Table 43
with only single branchial filaments. Of the species listed in
Table 49 only E. eugeniae and E. kerguelensis have mucronate
guards on the compound falcigers. The former lacks eyes and
antenna] articulations; E. kerguelensis has articulated ceratostyles
and eyes are prominent.
97. Eunice kinbergi Ehlers, 1868
FIGURE 60d-l; TABLES 27.29
Eriphyle capensis Kinbcrg, 1865:561; 1910:41. pi. 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 x li 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-I I; 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-I I 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 5 /6 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 absenL
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.