PANOPEUS TANNERI. 19 



tooth ; the hands are robust, inflated, smooth, except near their articulation 

 with the carpus, where scattering granules appear; upper and lower margins 

 rounded ; fingers long, down-curved, smooth, canaliculate, their cutting edges 

 irregularly armed with small and rather sharp teeth, without any prominent 

 basal tooth ; when closed the fingers are separated by a slight gap, and their 

 tips cross one another ; the color of the fingers in alcoholic specimens is very 

 light brown. The chela) of the right and left sides are unequal in size, but 

 similar in shape. The ambulatory appendages are setose, their merus joints 

 furnished with small teeth along their upper edges. The seventh segment 

 of the sternum in the male is entirely concealed by the base of the abdomen. 

 The coxte of the fifth pair of legs are in contact with the third abdominal 

 segment. The penultimate segment of the abdomen has concave sides, the 

 terminal segment is broad and rounded. 



Length of carapace, 6.5 mm. ; breadth of carapace, 10.25 mm. 



Station 3397. 85 fathoms. 1 male. 



In this species the carapace is short, the posterior margin wider than 

 usual in the genus. In its general aspect it recalls P. xan/kif'orm/s A. M. Edw.; 

 the meri of the ambulatory legs are denticulated on their upper margins as 

 in xanthifonnis, but in latus the carapace is much broader and more convex in 

 an antero-posterior sense, the front is less prominent and is destitute of lobes 

 at the lateral angles; the carpal tooth is blunt, etc. 



Panopeus tanneri Fax. 



Plate III., Fig. 4, 4''. 



Micropanope poliia Ratiib., Proc. U. S. Nat. Mus., XVI. 238, 1893. 

 Panopeus tanneri Fax., Bull. Mus. Comp. Zobl., XXIV. 154, 1893. 



Carapace moderately convex both lengthwise and transversely, smooth 

 and polished in the central and hinder parts, coarsely granular on the ante- 

 rior gastric and hepatic regions. The gastric and hepatic areas are well 

 marked off by depressions. Front nearly straight, divided by a median tri- 

 angular fissure, and projecting as a blunt tooth at each lateral angle ; a 

 double edge is formed by a groove which runs along the front, the lower 

 edge projecting further forward than the upper edge; both upper and lower 

 edges are finely granulate. The antero-lateral margins of the carapace are 

 cut into triangular teeth ; the first and second of these teeth are small, coa- 

 lesced, connected by a shallow sinus; the third and fourth are of about an 



