42 STALK-EYED CRUSTACEA. 



nearly straight interval ; the third tooth lies some distance in front of the 

 posterior end of the orbit. Back of the orbit there is a strong, procurved 

 spine on the margin of the carapace. Eye-stalks compressed, equal in length 

 to one half the width of the carapace. Second joint of the third niaxillipeds 

 equal to the third joint, crossed obliquely by a piliferous line ; third joint 

 notched at the antero-internal angle. Cheliped : merus unarmed, microscopi- 

 cally spinose above, setose below ; carpus minutely rugoso-spinulose, the 

 superior distal angle projecting as a sharp tooth ; propodite lightly rugose, 

 upper and lower borders margined, unarmed, palmar edge irregularly 

 and inconspicuously toothed ; dactylus without any prominent tooth. The 

 dactylus of the fourth pair of legs has a very convex internal border, the 

 dactylus of the fifth is long, narrow, and spatulate. Abdomen setose, telson 

 obtuse at the end. 



Length of carapace, 12 mm.; breadth, 8.6 mm. 



Station 3369. 52 fathoms. 1 -specimen. 



A. Milne Edwards's t3'pes of R. constrida and R. stiinpsoni have not yet 

 been returned from Paris. Compared with the descriptions of these species * 

 B.foniicata differs from the first in having a shorter ocular peduncle (one 

 half the width of the carapace instead of two thirds) and an unarmed merus 

 joint of the cheliped; from 7?. sUmpsnm it may be distinguished by the 

 superior margin of the hand being unarmed. 



This genus hardly seems to be satisfactorily separated from Notopiis De 

 Haan.t a genus to which three species have been assigned, viz., N. donipes 

 (Fabr.), I iV. atlanlkus Studer, § and N. oralis Henderson. |1 



Family LITIIODIDyE. 



GLYPTOLITHODES, gen. nov. 



Cephalo-thorax subtriangular, anterior part only one half as wide as the 

 posterior ; gastric region of the carapace elevated, forming a high conical 

 l)rominence ; a prominent, crescentic, rounded ridge on each branchial area, 

 enclosing the cardiac area in a deep fossa ; upper portion of the rostrum 

 straight, conical, subacute, much longer than the lower part, which has the 



• Bull. Mas. Comp. Zool., VIII. 35, 1880. 



t Fauna Japonica, Crustacea, p. 138, 1841. 



% Dc Ilann, Fauna Jap., Crust., p. 130. Plate XXXV. Fig. 5, Plate J, 1841. 



\ CrusUicpcn der Gazelle, p 17, Plate I. Fig. 5 : Abliaudl. Konigl. Akad. Wisscnscli. zu Berlin, 1882. 



II Rep. Challenger Anomura, p. 31, Plate II. Fig. fi, 1888. 



