58 W. G. RIDEWOOD. 
The testes, when fully formed, are slightly larger than the ovaries, and measure 
‘9 by °6 mm., or, if less elongated, ‘83 by *75 mm., and the ducts are as a rule not 
coloured red, and are shorter and narrower than the oviducts. The shape of the testis 
is ovoid or pyriform (fig. 41), and there is no tendency to elongation, as there is in 
the testes of C. sibogae (10, p. 85) and C. nigrescens (fig. 37). 
The males and females differ only in respect of their gonads and ducts, and 
possess no secondary sexual characters. They occur mixed up in the same agglutinated 
crowd in the internal cavities of the tubarium.. The buds are not necessarily of the 
same sex as their parent. One of the male polypides of specimen F was found to 
possess a bud with a pair of fairly large ovaries. 
The specimens of C. hodgsoni dredged by the ‘ Discovery’ were not all obtained 
from the same situation, nor at the same time of year, and some of the differences 
in the state of the gonads may possibly be attributable to seasonal changes. The 
condition of the gonads in the various specimens is as follows :— 
In specimens A and B the majority of the polypides are females with small 
ovaries. A few are males with comparatively large testes (*86 by °67 mm.) and colourless 
ducts. Two polypides were found in which both testes had red ducts, and in these 
two specimens one testis was large and the other small. One polypide was found 
with a large testis and a small ovary, both with red ducts (fig. 47). It is worthy 
of remark that no ripe ovaries are present in specimens A and B. 
In specimen C the numbers of male and female polypides are about equal. 
The females are on the whole less mature than the males, and their gonads are 
in some cases very small. One hermaphrodite polypide was found, -possessing a 
large testis and a small ovary. No testis ducts of material C exhibit any red 
colour. 
It is only in specimen D of C. hodgsoni that free ova are found. They occur 
singly, they are pale yellow in colour, and ovoid in shape (fig. 48), they measure 
about ‘47 by °42 mm., and are attached by a narrow pedicle to the inner surface 
of the tubarium. Of fourteen polypides examined thirteen were female and one was 
male. Some of the females have fully developed ovaries, with red ducts, and 
also with red spots in the interior of the ovary ; other polypides, of the same size 
as the former, have minute ovaries with no red colour in the oviducts, nor in the 
ovaries. The single male found has two large testes, one of which has a red duct. 
In specimen F female polypides are commoner than male, and less mature. 
In the least mature females the ovarian part of the generative apparatus is small 
as compared with the size of the red oviduct (figs. 43 and 46). The largest 
ovary found measures *5 by *45 mm., not including the duct, and the testes of 
the males measure *8 by *75 or ‘83 by ‘7 mm. The testis ducts are narrower 
than the oviducts, and are not red. 
In specimen G all the polypides examined are very immature females; the ovaries 
are extremely small, about *05 mm. in greatest width, and -1 mm. long, including 
