A Review of the Genus Eunice - Smithsonian Institution Libraries

NUMBER 523 223
J32
J
b, c, d
a
FIGURE 74.—Eunice modesta (syntype, ZMB 3998 (a only), syntype, ZMH V-801 (b-d)): a, anterior end, lateral
view; b, compound falciger, parapodium 29; c, subacicular hook, parapodium 29; d, pectinate seta, parapodium
29. (Scale bars in mm.)
number of setigers. All branchiae relatively long, slender
filaments.
Shape of neuropodial acicular lobes cannot be determined
accurately. Ventral cirri basally inflated from about setiger 5
through setiger 45, tapering in posterior setigers. Inflated bases
ovate. All notopodial cirri basally inflated, without articulations,
very much shorter than branchial filaments in all but first
few branchial setigers.
Limbate setae slender, marginally smooth. Pectinate setae
(Figure 74d) flaring, flat. One marginal tooth longer than other
teeth; -15 teeth present. Shafts of compound falcigers (Figure
74b) slightly inflated, marginally smooth. Appendages tapering,
bidentate. Proximal teeth larger than distal teeth, triangular,
directed laterally. Distal teeth tapering, distinctly curved.
Guards symmetrically rounded; mucros absent. Pseudocompound
falcigers and compound spinigers absent. Aciculae
light brown, tapering to blunt tips, straight; cross-sections
round. Subacicular hooks (Figure 74c) light brown, thick,
tapering, bidentate. Hooks first present from setiger 22, present
in all setigers thereafter, always single (except for replacements).
Both teeth directed distally. Proximal teeth about twice
as large as distal teeth.
UNKNOWN MORPHOLOGICAL FEATURES.—Jaw structure;
parapodial structures; pygidium and anal cirri.
EXPECTED STATES OF UNKNOWN MORPHOLOGICAL FEA-
TURES.—None.
CHARACTERS USED IN PREPARATION OF KEY NOT
SCORED.—Inappropriate Characters: 33, 34, 39, 40, 56, 58,
59. Unknown Characters: 4,6,43-50, 52, 55, 74,78, 80.
ASSUMED STATES FOR PURPOSE OF PREPARING KEY.—
None.
REMARKS.—Eunice modesta has not been reported since it