OAMM.VllIDJK. 103 



The body of tho aiiimal is covered with a short fiu', ineroa.siiifj; in 

 quautity posteriorly ; it is formed by a number of minute triangular 

 blades, the sharp extremities pointing outwards ; beneath this the 

 niieroscope shows a sciics of double semicireles, somewhat like cir- 

 cular scales overlapping- each other, the centre of each being marked 

 by a distinct spot or nucleus. 



2. Westwoodilla hyalina, n. s. (Plate XVII. fig. 5.) li.M. 



Eyes prominent. Superior antenna) scarcely longer than the peduncle 

 of the inferior. In all other I'espects tho animal resembles W. 

 c^aila, except in the microscopic appearance and structure of the 

 integument. The fur that covers the body is finer, and the central 

 spot or nucleus to each cellular mai'ldng is wanting. It may be 

 but a sexiial variety. 



Length ^ths of an inch. 



Hab. Taken by trawlers near the Eddystone, among the branches 

 of zoophytes (C. S. B.). 



20. (EDICERUS. 



CEdiceros, Kroyer, Tidsh: iv. p. 146, 1842-3. 

 CEdiceru3, Dana, U. S. Explor. Exped. p. 933. 



" Cephalon produced anteriorly into a rostrum more or less acute 

 than obtuse, but always transparent, turgid, yello^vish red, oval. 

 Eyes none ? Peduncles of the antennae long, equalling or surpassing 

 in length the flagellum of the superior. Superior antennae not 

 appendiculatcd. Both pau'S of gnathopoda subchelate, very large. 

 First two pairs of pereioi^oda strong ; fifth pair of pereiopoda very 

 long, shght, almost filiform (except the bases). Coxa) moderately 

 large, broad and deep, armed upon the inferior margins A\ith 

 simple hairs. Posterior margin of the fourth pair not excavated." 

 — Kroyer. 



(Edicerus difFors fi-om Graykt in the length and foma of the posterior 

 pair f)f pereiopoda, and from Westwoodilla in having the second pair of 

 gnathopoda subchelate; and i£(EdicerusNovce-ZeaIandi(ehclong to this 

 genus, in the form of the eyes also. I have seen no typical species 

 of the genus. Krciyer's description, except that the produced carpus 

 is not mentioned, so nearly agrees with the genus Monocidodes, that 

 I am incHned, from the relative position of the antenna), to think 

 (E. Nov(B-ZeaJandi(e does not belong to it ; biit, not having seen a spe- 

 cimen, I have thought it preferable that, for the present, it shoidd 

 remain in the genus assigned it by its original describcr. 



1. (Edicerus saginatus. 

 (Ediceros saginatus, Kroyer, Tidakr. scr. 1. iv. p. 150, 1842-3. 

 " White mottled with brown. Pereion broad, tUstende^l ; back w icU;, 



