studies oil mariiR' Oslracods 



319 



Fig. LVII. — C. (Cijpndimi) serrala (G. W. Mullku) v.ir. al/irmans n. var — 1 Shell, sfi'ii from tlip side, ^; 53 X. 

 2. Shell, seea from the side, ?; 'ili X. ■^. Aulcrior part of the right valve, seen from inside, $; 166 X. i. Hiilhl 

 first antenna, seen from inside, (he e-, f- and g-brislles aro broken: tj: I*:' X. >'>. Median eye and rod-shaped 



