2 45 
(fig. 41); seen from above broadly elliptical, widest in the middle, 
width equal to two-thirds of the length, extremities evenly rounded 
off, lateral margins boldly and evenly arched, right valve slightly 
larger than the left (fig. 40). Caudal rami very small; only 
imperfectly seen. Shell-surface smooth, without sculpture of any 
kind, but densely clothed with short hairs. Length o'65 mm. Dr. 
Dalziel’s collection contained only one example of this species, 
taken in one of the two localities given for Cypris subovala. 
CLADOCERA 
Smocephalus, sp. 
Diafhanosoma leuchtenbergianum ? S. Fischer. Both of these 
from Sources A. B. C. D. 
