studies on marine Oslracods 



507 



one of the two specimens investigated — the type-specimen — it was ojily developed on the 

 right mandible). In addition there are dorsally on the outside of this joint a few groups of short, 

 fine, stiff hairs. Of the two dorso-distal bristles on this joint the shorter one is only about as 

 long as the dorsal side of the joint. The exopodite (fig. 8) is, if its two end bristles are 

 included, about two-thirds of the length of the anterior side of the first endopodite joint. 

 Endopodite (fig. 8): First joint: The two longest of the three ventral bristles have n.o 

 short secondary bristles proximally of the long secondary bristles. Second joint: The proximal 

 bristle is not quite half as long as the main bristle a. There are five cleaning bristles in a 

 distinct lower row and one cleaning bristle between the main bristles b and c; on the mandible of 

 the right side there was, in addition, on one of the two specimens investigated (not on the type- 



Fig. XC\I. — Asi,;n,pe aberrala n. sp., ?. — 8. Right mandihlfi swn from insidr; I9fi X. 9. I^eft in.xvilla seen from 



inside; 2^0 X. 1". Right sixth liml) seen from inside; 132 X. 11 Seventh limh; 280 X. 12. Fiirca; tlie secondary 



S[iines arc not ilrnwn; 280 X. \'-^. Median eye and llie iYid-sha[i('d organ; 22'i X. 



