368 



A. TERAO : 



Left cheliped reaches to base of right palm ; the merus spinu- 

 lose along the upper border ; the carpus spinulose along both inner and 

 upper borders ; the hand deeply concave, spade-shaped, with a thin 

 marginal ridge, which in the basal part of the propodus covers over 

 the articulation of the latter with the carpus and distally towards the 

 finger-tips becomes gradually obliterated, the ridge on the movable 

 finger running nearly in the median line of its surface. 



Ambulatory legs of both sides compressed, their tip reaching 

 beyond that of the left but not that of the right cheliped ; distinctly 

 spinulose along the upper border of the carpus of the 2nd and 3rd 

 right legs as well as of the 2nd left leg ; dactylus longer than 

 propodus, with an inconspicuous longitudinal groove on both outer and 

 inner surfaces, beset with strong bristles along its upper and lower 

 borders. 



Abdominal appendages, excepting those that form the tail-fan, 

 are only two in number, viz., the 3rd and the 5th, both of which are 

 unequally biramous and are situated on the left side. 



Terga very thin and but little calcified, excepting those of the 

 somites which form the tail-fan. The 4th and 5th terga have each a 

 pair of round convex areas separated from each other by a consider- 

 able space. 



Colour in spirit : biscuit yellow or brownish yellow, with spots of 



a paler colour on ambulatory legs, especially on their outer surface. 



Ncte A male specimen (Mus. No. Cr. 335), preserved in the Imperial Museum at Uyeno, 

 Tokyo ; it is from the Aomori Prefecture. The shape of both chelipeds is suggestive of 

 a digging or burrowing habit. The specimen, at the time of my examining it, was 

 smeared with mud, especially on the dorsal concave surface of the left hand. This 

 species can be easily distinguished from the others by its characteristic chelipeds. As 

 already stated, the species is very closely allied to E. cavimanus. 



JEupagurus gracilipes Stimpson. 



Eapagurus gracilipes, Stimpson, Proc. Acad. Nat. Sci. Philad., 

 1858, p. 248; and Smiths. Misc. Coll., XLIX, 1907, p. 217; Doflein, 



