riwcEKDiyos of the xatioxal museum. 



fi03 



The dift'erences in the above table are so nninerous and iinpoitaiit as^ 

 to warrant the belief that these specimens are the males of a new spe- 

 cies of Bi/blis, for which I would suft-oest the name liijhlis (t(i<(ssizi. 



Tlie following- anatomical characters separate the new species from 

 B. loiKjiconits : It is larger, and 

 has shorter superior antenna- 

 (Fig-. 9) ; the lower corner of the 

 cephalon{Fig-. 11 c) is not well 

 marked. In alcoholic speci- 

 mens no ocular ])igment is 

 found. The propodal joint of 

 the anterior pereiopoda (tig. !> 

 is twice as long as the carpal 

 Each ramus of the last pleo 

 podos(Fig. 11 <0 bears 

 long hairs on both 

 edges. On the oppos- 

 ing edges of the rami 

 no fine serration occurs. 

 The telson is twice as 

 long as broad, and bears 

 a pair of minute hairs 

 at its tip (Fig. 11 ^0- 



(«) Three last iileoiiods 



F;-.n. 



BYBLIS AGASSIZI, Male. 



„l telson, iIors:il : speit (i) inter 



, f..ur l>:is:il joints 



jf |.e<lunc-le , (o)cei.halon. 



BIBLIOGRAPHY. 



Sessile-Eve.l Crustacea of Great Britain," 1863-1868, 



Bate and Wkstwood. 



London. , /-, * • ^1,0. 



Bate. C. Spence. Catalogue of the specimens of Amphipoilons Crustacea in tbe 



collection of the Britisli Museum, 1^62. 

 Sars, G. O. Crustacea of Norway, Chnstiania and Kjobenliavn, puLlislung tirm of 



Alb. Cammernieyer, 1893. 

 SMrra, S. I. U. S. Fish Commisiion Report (1871-72). 



