CRUSTACIJA NORTH PACIFIC EXPLORING EXPEDITION /I 



and covering- the deeply concave postero-lateral slopes of the cara- 

 pax. The outline of the postero-lateral margin is so deeply concave 

 as to form nearly a right angle at the middle. Some other species 

 of the genus, as P. globosiis Dana, exhibit similar characters, but 

 none in so great a degree. 



Carapax strongly convex, transverse ; proportion of length to 

 breadth, 1:1.32. Surface rather deeply areolate ; areolets granu- 

 lated and pubescent. Antero-lateral margin four-toothed (the angle 

 of the orbit included) ; teeth equal, with sharp tips and denticulated 

 margins. The furrows separating the teeth are continued inferiorly 

 for some little distance on the subbranchial region. ]Median lobes 

 of front rather prominent, equally rounded. Chelopoda large, un- 

 equal, minutely pubescent above, that on the left side smaller : hand 

 granulated above on the outer side and on the inner inferior edge, 

 the granules sharply projecting. Carpus with scattered granules, 

 smallest and most crowded on a ridge around the outer base of the 

 hand, within which there is a smooth parallel groove. Ambulator}^ 

 feet rather short and broad, pubescent and hairy above, nearly 

 smooth below. Abdomen and sternum of male pubescent. 



Color of carapax obscured by the pubescence; reddish-brown, 

 with darker spots. Dimensions of a male: Length of carapax, 0.41 ; 

 breadth, 0.54 inch. 



Dredged from a shelly bottom, in 10 fathoms, in the harbor of 

 Hongkong, China. 



Genus RTPPELLIA Milne Kdwards 

 98. RUPPELLIA ANNULIPES' Milne Edwards 



Rut^l^cUhi cniniilipes Milne Edwards, Hist. Nat. des Crust., i, 422. D.\x.\, 

 r. S. Exploring Expedition, Crust., i, 246, pi. xi, iig. 4. 



( )ur specimens agree perfectly with those of Dana. There is little 

 <loul)t of their being the same as those of Milne Edwards, not- 

 witli.'^landing the absence of a distinct "crete horizontale" on the 

 teeth of the antero-lateral margins. The dimensions of the single 

 specimen in our collection, a female, are. length of carai)a\. o.r^ ; 

 breadth, 0.Q4 inch. 



It was taken at Great Loo Choo Island. 



Genus KRIl'IIIA I.atreille 



The "red-eves," as our seamen called the cral)s ol this genus, 

 live in crevices of the rocks above low-water mark. wIktc they seem 



' Lydia anniilipcs (Milne Edwards). 



