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PACIFIC SCIENCE, Vol. XII, October, 1958 
individuals of the aggregate generation were 
found which appeared to have light organs 
(Fig. 9). The organs were situated mid- 
laterally, one on each side of the body be- 
tween muscles II and ill. This is the first re- 
port of possible light organs in the aggregate 
generation of C. bakeri . 
SUMMARY 
Two new species in the genus Doliolina , D. 
obscura and D. separata , have been described. 
The genus Doliolina has been subdivided into 
two groups. The first is the Doliolina perfecta, 
in which all the muscle bands form complete 
loops, the second the Doliolina imperfecta, in 
which the seventh muscle band is interrupted 
ventrally. 
The presence of fingerlike protuberances on 
the stomach of Doliopsoides horizoni have been 
described. Specimens of Doliolina undulata in 
which the undulations of the testis are much 
reduced are described. This straightening of 
the testis appears to be associated with early 
maturity. 
Doliolina intermedium is reported from the 
central and tropical Pacific Ocean. The speci- 
mens differ from those previously described 
in having a slightly longer testis and in the 
nearness of the ovary to muscle VII. 
The structure of the intestinal region of C. 
strongylenteron and C. bakeri are reviewed. On 
the basis of the structure of this region C. 
strongylenteron is placed in a position inter- 
mediate between C. bakeri and C. virgula. 
The presence of what appear to be light 
organs in the aggregate generation of C. bakeri 
is noted. 
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