A Review of the Genus Eunice - Smithsonian Institution Libraries

98 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
sulcus deep. Diffuse eye spots present near bases of A-I.
Antennae in a horseshoe; median 3 in a group, well separated
from A-I, similar in thickness. Ceratophores ring-shaped in all
antennae, without articulations. Ceratostyles slender and
tapering; maximum 10 cylindrical articulations in left A-I I. A-I
to setiger 1; A-II to setiger 3; A-III incomplete. Pcristomium
inflated cylindrical with distinct muscular lower lip. Separation
between rings distinct on all sides, especially deeply marked
dorsally and ventrally; anterior ring 3 /4 of total peristomial
length. Peristomial cirri to posterior x h of prostomium, slender
and tapering, with 7 cylindrical articulations.
Maxillary formula 1+1,6+8,9+0,7+8, and 1+1. Mx III long
straight, located behind left Mx II. Mx VI absent
Branchiae (Figure 29b) present, pectinate, distinctly longer
than notopodial cirri, not reduced in mid-body region, erect.
Branchiae from setiger 3 through setiger 48. Branchiae
terminating well before posterior end, present on less than 55%
of total number of setigers. First branchiae single filaments; all
other branchiae very strongly pectinate; maximum 24 filaments
by setiger 15. Branchial stem slim, tapering, erect, longer than
filaments; in last branchiated setigers branchial stems shortening
rapidly. Filaments about as long as notopodial cirri where
branchiae best developed, slender, nearly filiform; branchial
filaments remaining long and slender throughout the branchial
region.
Anterior neuropodial acicular lobes asymmetrically rounded
with aciculae emerging above the midline. Median and
posterior neuropodial acicular lobes symmetrically triangular
with superior aciculae emerging from apex. All presetal lobes
low transverse folds. Anterior postsetal lobes free, evenly
rounded, as long as acicular lobe, becoming reduced by
midbranchial setigers to low folds. Ventral cirri tapering; thick
in first 3 setigers. Ventral cirri in branchial region basally
inflated. Inflated bases ovate; narrow tips tapering. Postbranchial
ventral cirri gradually becoming short, tapering. Anterior
notopodial cirri long, slender, with 4 to 5 irregular, indistinct
cylindrical articulations. Articulations lost in first branchiated
setigers. Posterior notopodial cirri short; slender.
Limbate setae barely longer than other setae in most setigers,
slender, marginally smooth. Pectinate setae (Figure 29d,e)
nearly as long as limbate setae, very narrow; shafts relatively
wide, flattened; blades tapering, flat. One marginal tooth longer
and thicker than other teeth; up to 8 teeth present; anterior and
posterior pectinate setae similar. Shafts of compound falcigers
(Figure 29c) distally inflated, marginally smooth, with distinct
distal beaks. Appendages narrow, with parallel sides; head
indistinct, bidentate. Proximal teeth low triangular protuberance,
directed laterally; distal teeth longer, blunt, erect. Guards
symmetrically bluntly pointed, marginally serrated, without
mucros. Pseudocompound falcigers and compound spinigers
absent. Aciculae paired in anterior setigers; up to 4 in a
parapodium in posterior setigers, yellow, tapering to blunt,
nearly straight tips; cross-sections round. In posterior setigers 2
aciculae emerge distally; 2 aciculae emerge along ventral edge
of parapodia. Separation between core and sheath indistinct in
both aciculae and subacicular hooks. Subacicular hooks (Figure
290 yellow, bidentate. Hooks first present from setiger 42,
present in all setigers thereafter, always single (except for
replacements). Shafts of hooks thick, tapering distally to very
small heads. Proximal teeth very much larger than distal teeth,
curved, directed laterally; distal teeth small, tapering, erect.
UKNOWN MORPHOLOGICAL FEATURES.—None.
EXPECTED STATE OF UNKNOWN
TURES.—None.
MORPHOLOGICAL FEA-
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 56, 58, 59. Unknown
Characters: 23.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice caeca is listed with similar species in
Tables 19 and 20. An unusual feature of this species is the
emergence of two of the four aciculae along the ventral edge of
the ncuropodia rather than distally. Eunice caeca is the only
species listed in Table 20 with more than 20 branchial filaments
in each branchia where the branchia are best developed.
Eunice capensis Schmarda, 1861
Eunice capensis Schmarda, 1861:126, 8 figs.
Marphysa capensis.—Willey. 1904:263 — Day. 1967:400.
REMARKS.—The original description, while vague, fits
species of Marphysa.
Eunice capensis (Kinberg, 1865)
Eriphyle capensis Kinberg, 1865:561; 1910:41, pi. 15: fig. 16.
Eunice kinberg i; Ehlers, 1868:306.
REMARKS.—As pointed out by Ehlers (1868:306), the
species name proposed by Kinberg is preoccupied in the
combination Eunice capensis Schmarda (1861), because the
generic name originally used by Kinberg is a junior synonym of
Eunice; the species is further discussed as E. kinbergi.
37. Eunice cariboea Grube, 1856
FIGURE 29g-q; TABLES 3,33,40
Eunice cariboea Grube, 1856:57.
Eunice gagzoi Augener, 1922b:45 [in pan, see also E. gagzoi below].
Nicidion incerla Hansen, 1882:8, pi. 2: figs. 19-21.
Eunice (Nicidion) incerla.—Hartman, 1959:313.
MATERIAL EXAMINED.—Lectotype and 3 paralectotypes,
ZMC, and 5 paralectotypes, ZMB 4004, Christiansted, St.
Croix, Virgin Islands, coll. A.S. Orstcd and H. Kroyer.
Holotype of Nicidion incerta, Leiden no. 1510, Rio de
Janeiro, coll. E. v. Beneden.
COMMENTS ON MATERIAL EXAMINED.—Six of the types of
E. cariboea are complete. The lectotype consists of 157 setigers