BIHAXG TILL K, SV. VET.-AKAD. HANDL. BAND 12. AFD. IV. N:0 4. 7 



The eyes are small, indistinct. 



The first pair of antennce are seven-jointed, a little shorter 

 but thicker than the second pair, which also are seven-jointed. 



The hinder corners of the first segment of the pereion are 

 ^'ery prodiiccd, falciform, almost reaching to the ends of the 

 corners of the second segment; the hinder corners of the se- 

 venth segment reach almost to the ends of the iipper corners 

 of the last pleonal segment. 



The epimerals are very long, extremely produced, Hattened 

 in the form of sabres or flat horns, very sharp; the ones of 

 the seventh segment are the longest and broadest, they reach 

 nearly to the end of the pednncles of the iiropoda. 



The segments of the pleoti are subequal in length, the 

 iipper corners are very produced, sharp; the inferior corners 

 of the lirst and second segments are very long, the inferior 

 <'orners of the other segments are not developed. 



The tirus is broad, rounded, broader than long. 



The uropoda are provided with long, falciform rami. 



Nerocila Lovéiii is a wcll deiincd species, its next allies 

 tive N'. depressa, Milne-Edwards and A'^. serra, Schioedte and 

 JMeinert. It is easily distingiiished from both by the totally 

 flattened body, recalling the form of Scrolis, and by the 

 ^normous development of the posterioi- corners of the iirst 

 pereion al segment. 



V^irgo. 

 h. I, tig. lo— 17; Pl. II, fig. 18—21. 



The bodi/ is flat as a penny piece, broader than long, the 

 measure taken from the ontside of the epimerals (34 : oo) its 

 form is nearly circular. It is not fully symmctrical, the right 

 side beino- a little broader than the left. 



The head is irregularly scmicircular, twicc as broad as 

 long, scarcely as broad as a fourth of the fourth pereional 

 segment (5:21); the front is feebly rounded. 



The ej/ea are small, indistinct, distant by four lifths of the 

 bredth of the head. 



The first pair of antennce (Pl. 1, lig. 13) are seven-jointed, 

 without distinction between pcduncle and flagellum. The first 

 joint is a little thicker than the foUowing ones, and a little 

 sliorter than the second, which is the largest, the last joint is 

 slender and carries a few minute hairs. 



