106 Carl Bovallius, The Oxycephalids. 



1. ölossocephalus Milne-Edwardsi, C. Bovallius, 1887. 



The name is given in honour of Professor Alphonse Miusie Edwards. 

 PI. V, fig. 5; and p. 22, fig. 6 and 6 a; p. 38, fig. 71. 



Diagn. The head in the male is as long as the first four peraeonal 

 segments together, in the female as long as the first three; 

 the rostrum is about half as long as the rest of the head. 



The metacarpus of the first pair of perœopoda has the hind 

 margin entirely smooth, and the lower front corner only 

 feebly produced. The third pair are considerably longer 

 than the fourth and a little longer than the fifth. The carpus 

 of the fifth pair is more than twice as long as the tibia. The 

 sixth pair are shorter than the fifth. The seventh pair do not 

 reach fully to the apex of the tibia of the sixth pair. 



The lateral parts of the pleonal segments are rounded behind. 



The first and second pairs of uropoda reach about to the 

 apex of the last pair. 



Syn. 1887. Glossocephalus Milne-Edwardsi, 35, p. 35. 



The integument of the body is smooth, without tubercles or ex- 

 cavations, hard and bright as if polished. 



The rostrum is very broad at the apex, in the male half as broad 

 as the ocular region, in the female a little narrower. 



The first pair of antennœ in the male are less curved than usual- 

 ly in this family, and have the front corner of the first flagellar joint not 

 at all projecting; the first flagellar joint is not twice as long as broad; the 

 second joint is longer than the third, and as long as the fourth; these last 

 three joints together are nearly twice as long as the under margin of 

 the first joint. The first pair in the female are robust, with the first 

 flagellar joint thick and tumid, and nearly as long as the two following- 

 joints together. The second pair in the male are six-jointed; the first 

 joint is somewhat curved, and considerably shorter than the second, which 

 is shorter than the third ; the fourth joint is a little shorter than the 

 second; the fifth and sixth are short, equal in length, and together about 

 an eighth part of the length of the fourth joint. 



The first two segments of the perœon are short and together scarcely 

 as long as the third, the first three segments together are somewhat 



