CHONDRACANTHUS OIBBOSU8. 





the vulva. The lower part of the oviduct contains a clear 

 gelatinous substance, :m<l is very similar in :i>pi < -t to the ce- 

 ment duct of a cirripede ; this substance is secreted by the 



FIG. 6l.Chondracanthw gibbosvs. Female: A, lateral view. B, ventral riew, en- 

 larged: a, head; t>, <\ ppendagM ; d. median dorsal process; e, median ventral 

 processes ; /, i. h, lateral processes; *, terminal segment; /, male ; g, orisacs ; 

 m, /, medio-dorsal ovarian tubes ; p, lateral ovuriau tabes ; 0, oviduct. 2, 8, an- 

 tcnnules ; 4, 5, 6, antenna?, gnathites. 



walls of the oviduct, and forms the walls of the ovifferous sac. 

 The latter, as has been stated, has the form of along cylin- 

 drical filament, the upper end of which is firmly held between 

 the prominent lips of the vulva (Fig. 62, x). 



The male Chondracanthus does not attain to a twelfth the 

 length of the female, and looks, at first, like a papilla upon 



