472 



DEPARTME^'T OF THE ^'AVAL SERVICE 



(i) Eukrohnia hamata (Mubius). Fig. 11. 

 1911. Ritter-Zahony, p. 30. 



Fig. 11. — Eukrohnia iiaiaata. x 4. 



The range in size is from 7 to 35mm. long. The latter is near the upper limit of 

 its length, and yet in none were the ovaries mature, although in some of the larger 

 individuals the seminal vesicles were distinct. It may be doubted whether it breeds 

 in our area, unless in the deeper parts of the outer waters, which we did not investigate. 

 As it is typically a deep-water species, except in polar waters, the absence of mature 

 individuals is not to be wondered at. 



