A Review of the Genus Eunice - Smithsonian Institution Libraries

244 SMITHSONIAN CONTRIBUTIONS TO ZOOLOGY
REMARKS.—The species was described from Tobago in the
Windward Islands and is listed with similar species in Tables
33 and 37-39. It was well characterized by Treadwell;
however, without access to type material or new material from
the type locality, it is difficult to relate it to any of many species
assigned to group B-4. It was omitted from the key.
Eunice (Marphysa) novaehollandiae (Kinberg, 1865)
Nauphanta novae Hollandiae Kinberg, 1865:564; 1910:43, pi. 16: figs. 23,
23B-23G.—Augencr, 1922d:26.—Fauchald, 1987:378-379, fig. 2.
Eunice (Marphysa) novae Hollandiae.—Grube, 1878b: 165-166.
REMARKS.—This species has usually been considered a
synonym of Nauphanta mossambica. It was redescribed by
Fauchald (1987) as type species of the genus Nauphanta.
Eunice oerstedii Stimpson, 1854
Eunice oerstedii Stimpson, 1854:34-35.
Eunice oerstedii.—Mclntosh, 1885:273-275, pi. 38: figs. 1, 2, pi. 19A: figs.
14, 15.
Eunice oerstedii.—Fauvel, 1914:143-145, pi. 10: figs.5-10.
REMARKS.—No original material is available. The only
information of any value in Stimpson's description concerns
the distribution of branchiae, which should be present from
setiger 4 and be absent posterior to setiger40 with maximum of
5 filaments. Mclntosh (1885) and Fauvel (1914) discussed two
very different species under this name. An examination of
Mclntosh's material shows that his species belongs to group
A-l, possibly to an undescribed species. Fauvel's species
belongs to group B-l. The only feature the two species have in
common is the branchial distribution, which approximates the
one specified by Stimpson. This kind of branchial distribution
is found in many different species (e.g., E. pennata and E.
vittata) and cannot be used by itself to identify any taxon. The
fauna of the type area in the northwest Atlantic is known to
include several species.
Eunice oerstedii is here considered indeterminable, not least
because two different traditions have developed in identifying
the species.
139. Eunice oliga (Chamberlin, 1919)
TABLES 46,47
Leodice oliga Chamberlin, 1919a:244-248, pi. 55: fig.11, pi. 56: figs. 2-9.
COMMENTS ON MATERIAL EXAMINED.—The types are no
longer available. The following is a summary of Chamberlin's
description.
DESCRIPTION.—Type with 82 segments; length 16.5 mm;
maximal width 2 mm.
Prostomial lobes frontally rounded, dorsally excavate with a
thickened rim; median sulcus deep. Eyes not mentioned.
Ceratophores ring-shaped in all antennae, without articulations.
Ceratostyles tapering, with up to 30 short, nearly moniliform
articulations in A-III. A-I to posterior peristomial ring; A-II to
setiger 7; A-III to setiger 14. Peristomium cylindrical.
Separation between rings distinct dorsally and ventrally.
Peristomial cirri to middle of prostomium, slender and
tapering, with 8 articulations.
Maxillary formula 1+1, 8+8, 9+0, +10, and presumably
1+1.
Branchiae present, palmate, reduced in mid-body region.
Branchiae from setiger 5 to setiger 82. Branchiae present to
near posterior end, present on more than 65% of total number
of setigcrs. First and last branchiae single filaments; maximum
3 filaments at about setiger 12-16. Filaments slender, tapering.
Branchial stems short. Several median setigers with single
filaments; numbers increasing to 2 in a short pre-pygidial
region.
Neuropodial acicular lobes truncate. Anterior and posterior
ventral cirri tapering; median ventral cirri basally inflated.
Notopodial cirri tapering, with 5 to 6 articulations.
Pectinate setae tapering, flat. One marginal tooth very much
longer than other teeth; -10 teeth present. Shafts of compound
falcigers inflated, marginally smooth; internal striation present.
Appendages thick, tapering, with large heads, bidentate.
Proximal teeth shorter than distal teeth, tapering, directed
laterally. Distal teeth curved, tapering, directed laterally.
Guards asymmetrically bluntly pointed; mucros absent. Pseudocompound
falcigers and compound spinigers absent. Aciculae
yellow, tapering to pointed tips; cross-section round.
Separation of cores and sheaths indistinct in both aciculae and
subacicular hooks. Subacicular hooks yellow, tridentate with
teeth in a crest. Hooks tapering, with distinct necks. Proximal
fang large, directed laterally. Secondary and tertiary fangs
emerging from joint bases, curved; tertiary fangs very small.
UNKNOWN MORPHOLOGICAL FEATURES.—Many features
associated with prostomium; parapodia and setal structures;
pygidium and anal cirri.
EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 34, 58, 59. Unknown
Characters: 4-6, 10-17, 24, 26, 32, 44-52, 54-56, 60,
80-82.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice oliga was described from a single
specimen from Makemo Island, Paumotou Islands, in shallow
water. It is listed with similar species in Tables 46 and 47.
Eunice oliga is one of two species listed in Table 47 with
palmate branchiae (i.e., with reduced branchial stem); the other
species is E. bicirrata. The latter is poorly known; the two
species may be best compared by matching the descriptions
directly.