CRANOCEPHALUS GOESI. 97 



serrated; it is more than twice as long as the inner ramus, which is a 

 little longer than the outer ;both rami are elongate-lanceolate, and are 

 serrated on both margins. The second pair reach fully to the apex 

 of the peduncle of the last pair; the peduncle is linear, more than four 

 times as long as broad, and quite twice as long as the inner ramus, 

 which is considerably longer than the outer and is serrated on both mar- 

 gins; the outer ramus is smooth on the outer margin and serrated on 

 the inner. The third pair reach as far as four-fifths of the length of 

 the telson; the peduncle is linear, more than twice as long as broad, 

 and considerably longer than the inner ramus, which is as long as the 

 outer and is serrated on both margins; the outer ramus is serrated as 

 in the preceding pair. 



The telson has the margins smooth and straight. 



COLOUE. White as ivory, with red spots on the lower parts of the body, the 



eyes are dark red. 

 LENGTH. 8 mm. 

 HAB. The tropical region of the Atlantic. 



Gen. 8. StebMngella, n. g. 



The name is given in honour of the Rev. TH. R. R. STEBBING. 



Diagn. The head is moderately long and broad, and is produced into 

 a tolerably long and sharp-pointed rostrum, which is closed 

 on the under side. The hind part of the head is constricted. 



The second pair of antennce are hidden under the head, when 

 folded. 



The first two pairs of perceopoda are subcheliform. The carpus 

 and metacarpus of the fifth pair are not dilated. 



The last coalesced ural segment is longer than, but not twice 

 as long as, the first, and is only a little longer than broad. 



The inner rami of all the three pairs of uropoda are free, 

 not coalesced with the corresponding peduncles. 



The telson is triangular, and sharp-pointed. 



This genus has been established for the reception of those Oxy- 

 cephalids, which, according to my views as to the generic characteristics 

 shown in the family Oxycephalida3 (see above p. 16) are intermediate 

 between the genera Oxycephalus, Streetsia, and Leptocotis. 



Nova Acta Reg. Soc. Sc. Ups. Ser. III. 13 



