= 
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 maxillipeds 
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 3569. 52 fathoms. 1 specimen. 
A. Milne Edwards's types of R. constricla and R. stimpsoni 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 peduncle (one 
half the width of the carapace instead of two thirds) and an unarmed merus 
joint of the cheliped; from &. stimpsoni it may be distinguished by the 
superior margin of the hand being unarmed. 
This genus hardly seems to be satisfactorily separated from LVofopus De 
Haan,f a genus to which three species have been assigned, viz., WV. dorsipes 
(Fabr.), ¢ WV. atlanticus Studer, § and WV. ovalis Henderson. || 
Famity LITHODID A. 
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. Zodl., VIII. 35, 1880. 
+ Fauna Japonica, Crustacea, p. 138, 1841. 
{ De Haan, Fauna Jap., Crust., p. 139, Plate XXXV. Fig. 5, Plate J, 1841. 
§ Crustaceen der Gazelle, p. 17, Plate I. Fig. 5: Abhandl. Konig]. Akad. Wissensch. zu Berlin, 1882. 
| Rep. Challenger Anomura, p. 31, Plate II. Fig. 6, 1888 
