42 



STALK-EYED CRUSTACEA. 



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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 strongs 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 maxilHpeds 

 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 rugosCj 

 npper and lower borders margined, unai^med, 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 types of R. condrida and it. dimpsoni have not yet 

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

 R.fornicata differs from the first in having a shorter ocular peduftcle (one 

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

 joint of the cheliped; from R. stimpsoni it may be distinguished by the 

 superior margin of the hand being unarmed. 



This genus hardly seems to be satisfactorily separated from Notopus De 



# 



N. 



(Fabr.),]: 



K atlantkus Studer, § and N. ovalis Henderson. || 



.*A, 



Family LITHODIDiE. 



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 

 prominence ; 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. Mus. Comp, Zool., VITL 35, 1880. 

 f Fauna Japomca, Crustacea, p. 138, 1841. 



X De Haan, Fauna Jap., Crust., p. 139, Plate XXXV. Fig. 5, Plate J, 1841. 



§ Crustaccen der Gazcllo, p. 17, Plate I. Fig. 5 : Abliandl. Konigl. Akad. Wiasensch. zu Bcrlm, 1882. 

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



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