DESCRIPTION OF OPISTHOTEUTHIS DEPRESSA X. SP. 335 



mass. The latter, on microscopic examination, was ibuud to consist 

 of a complicated system of epithelial du]»licatiires, the cells of which 

 were cylindrical or s])indle-shaped and regularly arranged. These are 

 probably to be considered as spermatoblasts. Xowhere is the sper- 

 matozoon to be fonnd, indicating that our specimen stands in a very 

 young stage of sexual development. 



Of other anatomical facts, incidentally observed during the dis- 

 section of the genital parts, we find no points of particular interest and 

 therefoi'e prefer to lea Ne tliem liere unnoticed, only referring the reader 

 to Nvhat are embodied in our tig. !). PI. XXXIIT. 



Culloji! of Science, Imperial Uniccrsitij, Tohijo, 

 June 10th 1805. 



