Fig. XCI. — A^lcropcOkUni n. sp.. '+. — 1. Shell sci'ii Vrnin Ihi' side; 2fi X. 2. Shell seen I'lom below; 2i X. 

 part, of the right, valve seen from inside; 120 X. 4. Left first antenna seen from oulsiiie; 128 X. T). Ric 



seen from inside; 



the cleaning bristles of the second endopodile joinl are not drawn: 



of llii'^ lindi: liS'fi X- 



Posic rior 

 mandible 



I'lO X. fi. Endite of the coxale 



