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PACIFIC SCIENCE, Vol. XII, October, 1958 
sagittal plane of the body. The stomach is 
roughly an elongate ellipse in outline with 
its cardiac portion prominently protruded. 
The anus opens near the cardiac end of the 
stomach. The anterior margin of the intestinal 
loop {inti) extends to near the posterior mar- 
gin of muscle V. The mid-intestinal region is 
swollen in some specimens. Usually there is a 
small group of cells on each side of the in- 
testinal loop, in some cases these groups may 
consist of two parts, one large and one small. 
The ovary ( ov .) is situated ventrally near 
the middle of the sixth intermuscular zone. 
The testis (t.) is a club-shaped organ extend- 
ing from the posterior margin of muscle II to 
slightly beyond the posterior margin of mus- 
cle III. The vas deferens (v.d.) opens into the 
pharynx at the level of muscle IV. 
The phorozooid is quite similar to the 
gonozooid. It lacks gonads and has a ventral 
protuberance, into which the ends of muscle 
VII project. 
Doliolina separata n. sp. resembles D. krohni 
(Herdman 1888) and D. indicum (Neumann 
1906) in that it has an obliquely stretched gill 
septum. The shape of the testis is somewhat 
reminiscent of D. intermedium (Neumann 
1906). The ventral interruption of muscle VII 
and the peculiar arrangement of the gonads, 
in which the ovary and testis are widely sep- 
arated from each other, is unique and this 
latter characteristic is the basis for the specific 
name here given. 
The material upon which this description is 
in part based is deposited in the U.S. Na- 
tional Museum: 
SYNTYPES: U.S.N.M. no. 11373, 2 speci- 
mens, Gonozooid, Doliolina separata from 
Shellback station 137. 
allotypes: U.S.N.M. no. 11374, 4 spec- 
imens, Phorozooid, Doliolina separata from 
Shellback station 137. 
Doliolina intermedia (Neumann 1906) 
Fig. 3 
Doliolum intermedium Neumann, 1906: 211- 
212. 
Many specimens of D. intermedium have 
been found in the Shellback and the Mid- 
