A Review of the Genus Eunice - Smithsonian Institution Libraries

222 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
Maxillary formula 1+1, 7+7, 10+0, 10+10, 1+1, and 1+1.
Teeth of Mx III and IV very small, but distinct. Mx III short;
part of distal arc with left Mx IV.
Branchiae (Figure 73m) present, pectinate, distinctly shorter
than notopodial cirri, not reduced in mid-body region, erect.
Branchiae from setiger 6 to setiger 63. Branchiae present to
near posterior end, present on more than 65% of total number
of setigers. Last 5 pairs single filaments. First few pairs of
filaments very unequal in length. Maximum 3 filaments from
about setiger 15 through setiger 30. Filaments very thick,
digitiform.
Anterior neuropodial acicular lobes distally truncate, becoming
distally rounded posteriorly; aciculac emerging above
midline. All pre-setal lobes low, transverse folds. Anterior
postsetal lobes following outline of acicular lobes closely,
becoming low, transverse folds from about setiger 15.
Prebranchial ventral cirri thick, tapering. Ventral cirri large,
flattened, forming scoop around lower edge of acicular lobe
from early branchial setigers, eventually forming scoops
around emergent part of subacicular hooks; tips tapering. All
notopodia medially inflated; anterior notopodial cirri with 5 or
6 cylindrical articulations; articulations indistinct from mid
body.
Limbate setae narrow. Pectinate setae (Figure 73n) flaring,
flat. Both marginal teeth slightly longer than other teeth; -15
teeth present. Shafts of compound falcigers (Figure 73p)
slightly inflated, internally strongly striated, marginally
smooth. Appendages short, slender, bidentate with thick teeth.
Proximal teeth triangular, directed laterally. Distal teeth erect.
Guards asymmetrically bluntly pointed; mucros absent Pseudocompound
falcigers and compound spinigers absent. Aciculae
single anteriorly; 2-3 present in median and posterior
setigers, dark brown, tapering to blunt tips, straight; crosssections
round. Subacicular hooks (Figure 73o) with dark
brown cores and clear sheaths, bidentate. Hooks distinct from
setiger 21; setigers 17-20 with broken remnants of much more
delicate hooks in subacicular positions, present in all setigers
thereafter, always single (except for replacements). Hooks
distinctly tapering; heads distinct. Proximal teeth directed
laterally. Distal teeth triangular, rather blunt
UNKNOWN MORPHOLOGICAL FEATURES.—Pygidium
anal cirri.
EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 56, 60. Unknown
Characters: 4,6, 13-16, 74.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice mindanavensis is listed with similar
species in Tables 27 and 30. It has scoop-shaped ventral cirri
with inflated bases continued to the far posterior end; the only
other species in Table 30 with inflated bases through the
posterior end is E. coccinea, in which the bases are ovate. The
and
branchiae are continued to the far posterior setigers in £.
mindanavensis and terminate well before the posterior end in E.
coccinea.
Eunice minuta Grube. 1850:292.
Eunice vittata.—Grube, 1866b:68.
Eunice minuta Grube, 1850
REMARKS.—Originally a nomen nudum, Grube did not issue
any description of this form before withdrawing it in 1867 as a
juvenile of E. vittata. Eunice vittata he considered, incorrectly,
as being indistinguishable from alcohol-preserved specimens
of E. pennata. Eunice minuta is here considered a junior
synonym of E. vittata.
124. Eunice modesta Grub«, 1866
Eunice modesta Grube, 1866a:64.
FIOURF. 74; I AMI J s 33. 36
MATERIAL EXAMINED.—TWO syntypes, ZMH V-801,
Samoa. ZMB 3998, Samoa, coll. Godcffroy.
COMMENTS ON MATERIAL EXAMINED.—The Hamburg syntype
has been completely dried out at one lime and no
meaningful illustrations of soft parts could be made, so the
illustration of the anterior end is based on the very soft Berlin
specimen, but otherwise the description is based on the
Hamburg syntype with comments as necessary where the
Berlin syntype differs.
DESCRIPTION.—Hamburg syntype complete female with
very large eggs in body cavity, with -80 setigers; total length
28 mm; maximal width 1 mm; length through setiger 10,3 mm.
Berlin syntype incomplete with 37 setigers; length 21 mm;
maximal width 2 mm; length through setiger 10, 5.5 mm.
Prostomium (Figure 74a) distinctly shorter and narrower
than peristomium, less than l /2 as deep as peristomium.
Prostomium frontally rounded, dorsally excavate with a
thickened rim; median sulcus very deep. Eyes between bases of
A-I and A-II, reddish. Ceratophores long in all antennae,
confluent with prostomium, rather than ring-shaped, without
articulations. Ceratostyles digitiform, with up to 6 long,
cylindrical articulations in A-I 11. All antennae short; none
reaching beyond the peristomium. Peristomium with large,
inflated lower lip, set off from rest of peristomium as thickened
cushion delimited posteriorly by ventral groove separating
anterior and posterior peristomial rings. Peristomial rings
distinct dorsally and ventrally; anterior ring 3 A of total
peristomial length. Peristomial cirri barely to posterior edge of
anterior peristomial ring, ovate, without articulations.
Jaws not observed.
Branchiae present, single filaments, distinctly longer than
notopodial cirri. Branchiae from setiger 17-18 to setiger 70,
from setiger 11 to end of fragment in Berlin syntype. Branchiae
terminating before posterior end, present on 65% of total