and little-known Ainphijjuduus Crustacea. 445 



obtained from the waters of Torbay enable me to remove the 

 doubts, and supply some additional details. 



Tlie fi<,Mne trivcn in (he ' liritish Sessile-eyed Crustacea' is 

 rather striking,' in appi-arance from the j)osition of the flagellum 

 of the upper antenna-, from the ani^ular curvature of the back, 

 the ragj^ed inferior mari^in of the coxa.' to the first pereiopoda, 

 and the very considerable size of all the pereiopoda. The 

 fla_2^ellum above mentioned is represented as directed forwards 

 and upwards in a straii^ht line, formini^ an obtuse angle with 

 the j)eduncle. This position is one that I have once, but 

 only once, observed the Hagella to assume ; it cannot, therefore, 

 be depended on for facilitating recognition of tlie animal at a 

 glaTice. In regard to the other points, 1 may say that the 

 pereiopoda in my specimens are less powerfully developed, the 

 curvature of the back is normal, and the coxal margin such as 

 will be presently described. 



In the ])enultiniatc joint of the upper antennae the distal 

 extremity is produced into a sharp point on the inner side. 

 I have for this reason figured both the up])er antennaj, as 

 otherwise this peculiarity could not be exhibited. The eyes 

 are round and red. The shai-p lateral process of the head 

 does not run out in an unbroken straight line, there being as 

 it were the descent of a step just before the tenninal spike is 

 reached. The first gnathopods are sim})lc and slender, the 

 wrist rather longer than the hand, both having nearly ])arallel 

 sides. The finger is slightly curved, and not nearly so long 

 as the hand. Thecoxai would seem to be rudimentary. The 

 second gnathopods have the hand a little dilated at the palm, 

 which is fringed with short hairs and defined by a small tooth. 

 The coxoB have the infero-anterior margin smoothly rounded; 

 but the hinder part of this margin is ornamented with three 

 or four sharp denticiilations curving forwards. The same 

 description applies to the following coxa, which are rather 

 longer than their predecessors and shorter than those whicii 

 come next. Mr. Spence Bate has already noticed that these 

 latter, the coxa? of the second pereiopoda, are furnished with 

 a row of solitary hairs planted within the margin. The same 

 observation, however, must be extended to the coxae of the two 

 preceding pairs of limbs, the hairs in each case numbering 

 some five or six. 



CalUmerus acndifjitaia^ n. gen. et sp. V\. XX. figs. 3, 3a, Zb. 



The specimen now described was dredged near Hope's Nose, 

 in Torbay, in September 1874. I have not since seen or 

 heard of any similar specimen ; and though in size and general 



