A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 313
Eunice stigmalura is listed with similar species in Tables 46
and 48. It is also listed in Tables 22 and 23 among species with
bidentate subacicular hooks. The thick, blunt distal teeth in the
subacicular hooks present in part of the material make the
species by definition a member both of groups A-2 and C-2,
even if all other characters suggest that it to be a member of C-2
only.
The separation between anterior and posterior rings of the
pcristomium is distinct on all sides in E. stigmatura and E.
havaica. In E. havaica A-111 is distinctly longer than A-II; in E.
stigmatura they are similar in length. Of the three species in
Table 23 with long, cylindrical articulations in the ceratostyles,
E. johnsoni has short peristomial cirri; in E. gracilicirrata and
E. stigmatura the peristomial cirri reach at least the middle of
the prostomium. In E. gracilicirrata the branchiae clearly
outreach the notopodial cirri; in E. stigmatura they are of about
the same length.
Eunice stragulum Grube, 1878
Eunice stragulum Grube, 1878b:163-164.
Marpkysa stragulum.—Crossland, 1903:136.
REMARKS.—This species was described in detail and listed
by Grube in what he recognized informally as section
Marphysa within the genus Eunice. It was formally transferred
to Marphysa by Crossland and will be treated in a forthcoming
review of that genus.
Eunice subdepressa Grube, 1866
Eunice subdepressa Gnibe, 1866b:68; 1878a:101.
REMARKS.—Described from Puerto Cabello, Venezuela, this
species was characterized as having branchiae starting on
setiger 24 and continued to end of the fragmented specimen
(203 setigers). Maximum number of branchial filaments is four
and A-II I does not reach beyond the peristomium. The listing in
Grube (1878a: 101) implies that the antennae lack articulations.
The information is clearly inadequate to characterize the
species; no specimen is available and the species is here
considered indeterminable.
185. Eunice suviensis (Treadwell, 1922)
TABLES 27,28
Leodice suviensis Treadwell, 1922:138-139, figs. 12-16, pi. 2: figs. 8-13.
Eunice afra.—Hartman, 1956:282 [in part, not Eunice afra Peters, 1854].
COMMENTS ON MATERIAL EXAMINED.—The type is no
longer available in AMNH. The following notes are based on
Treadwell's description.
DESCRIPTION.—Total length 370 mm; maximum width 9
mm.
Eyes dark, lateral to bases of A-II. Antennae in a horseshoe.
Ceratophores ring-shaped in all antennae, without articulations.
Ceratostyles without articulations. A-III to setiger 1; other
antennae slightly shorter. Peristomial cirri to middle of anterior
peristomial ring, without articulations.
Maxillary formula 1+1, 5+5, 7+0, 6+8, and 1+1; Mx III
short; forming an arc with left Mx IV.
Branchiae present, pectinate, distinctly longer than notopodial
cirri, not reduced in mid-body region, erect. Branchiae
from setiger 9 through 160 segments (however, as total number
of setigers was not mentioned, the fraction of branchiated
setigers cannot be estimated). Maximum number of filaments
9. Branchial stems long and slender. Filaments slender and
digitiform, very much longer than short, tapering notopodial
cirri.
Ventral cirri inflated from about setiger 10 at least through
setiger 50. Posterior ventral cirri without basal inflation.
Notopodial cirri short and tapering in all setigers, without
articulations.
Pectinate setae slightly flaring with 1 long marginal tooth,
with 16 teeth. Shafts of compound falcigers inflated. Appendages
short with both teeth well developed and directed
obliquely distally. Guards symmetrically rounded; mucros
absent. Pseudocompound falcigers and compound spinigers
absent. Aciculae and subacicular hooks "very black." Aciculae
tapering and distally blunt, presumably straight. Subacicular
hooks tapering with large, laterally directed proximal teeth and
erect, smaller distal teeth.
UNKNOWN MORPHOLOGICAL FEATURES.—Most prostomial
and peristomial features; parapodial features.
EXPECTED STATE OF SELECTED UNKNOWN FEATURES.—
None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 22, 58, 59. Unknown
Characters: 1, 4-12, 16, 17, 20, 24-26, 28, 29, 37-40,
42-52, 54-56, 60, 65,67, 74, 78, 80-82.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—37,1;
38,1.
REMARKS.—The shape of the subacicular hooks, branchial
distribution, and development of branchiae indicate that the
synonymy proposed by Hartman (1956) cannot be correct. The
species was well characterized, but not sufficiently to be
included in the key; it is compared to similar species in Tables
27 and 28. Compared to other species with short antennae and
bidentate subacicular hooks listed in Table 28, E. suviensis has
slender, tapering notopodial cirri, rather than medially or
basally strongly inflated ones. New material from Rat Passage,
Suva Harbor, from which it was originally described, should be
examined to establish features that cannot be determined from
original description.
Eunice taenia Claparede, 1864
Eunice taenia Claparede. 1864:580-581, pi. 4: fig. 11.—Quatrefages,
1866:653-654.
Eunice siciliensis.-GniYx, 1866b:68.—Ehlers, 1868:353-358.