132 PROCEEDINGS OF THE NATIONAL MUSEUM VOL. 92 
Genus RHODINE Malmgren 
RHODINE BITORQUATA Moore 
Rhodine bitorquata Moorr, 1923, p. 223 (U.S.N.M. No. 17248; Monterey Bay, 
Calif., in 204 fathoms). 
This is known through only an anterior end. The prostomium 
lacks a plaque but has a long keel and conspicuous nuchal organs; 
they are inverted U-shaped, angular, the inner branch about half as 
long as the outer. The head is bent at an angle (nearly right) to the 
body, and set off on the dorsal side by a sharp, narrow, transverse 
ridge, about one-fourth of the distance from the first setiger to the 
anterior end. The first two segments are very long, back of their 
setigerous ridges. The posterior border of the first is provided with 
a great, entire collar, fitting more or less closely around the body. 
A similar collar from the anterior border of the third setiger extends 
forward around the posterior end of the second setiger, but this 
collar is less than half as high as the other, and longest on its ventral 
side; it is entire, with broad, shallow, dorsolateral clefts and a short, 
dorsal flap. Other segments are also long but lack collar. 
R. bitorquata, known solely through its original record, is the only 
species of this genus known from the west coast of North America. 
Family SABELLIDAE 
Genus SABELLASTARTE Savigny 
SABELLASTARTE INDICA (Savigny) 
Sabella indica SAviany, 1826, pp. 412-418. 
Laonome punctata TREADWELL, 1906, p. 1179 (U.S.N.M. No. 5223; Hawaii). 
Sabellastarte indica JOHANSSON, 1926, pp. 15-16, fig. 5. 
The type collection of Zaonome punctata includes four well-pre- 
served specimens, the largest about 33 mm. long. They retain much 
pigment, especially on the wine-colored, tentacular bases and the 
transversely barred radioles. The dorsal side of the thorax, and to 
a lesser degree the ventral side including also the abdomen, are more 
or less heavily speckled with deep maroon spots, and a heavier, larger 
spot occurs regularly on the parapodial ridge between the notopodium 
and neuropodium. 
Radioles lack eye spots or stylodes. The collar membrane consists 
of conspicuous rounded lappets, not sharply separated from the lat- 
eral lobes; the ventral lappets are longer, triangular, but continuous 
with the lateral lobes. The setal formula is: 
notopodia with only bilimhbate setae 
neuropodia with only avicular setae 
abdomen with only limbate and avicular setae. 
These specimens are typical representatives of a Sabellastarte, as 
shown by Johansson (1927, p. 157), and do not appear to be separable 
from the widely known S. indica Savigny (Okuda, 1987, p. 307, figs.). 
thorax 
