72 Addison E. Verrill, 



Our Bermuda specimens, preserved in formol, after two months, 

 had the body, on the back and sides, and the inner surface of the 

 large chela grayish green, thickly covered with roundish spots of 

 yellowish white, placed so close together as to produce an areolated 

 or reticulated appearance, becoming less evident on the lower parts 

 of the sides. Outer surface of larger chela spotted in the same 

 way, but the ground-color is light reddish orange, becoming redder 

 distally; dactyl bluish or amethyst purple. 



This rather rare and conspicuous species was first recorded from 

 Bermuda by Dr. Rankin. Our specimens were taken on a serpu- 

 line atoll near Hungry Bay, March, 1901, by A. H. Verrill. In the 

 Yale Museum there are specimens from the Bahamas and Florida 

 which agree in every respect with those from Bermuda. Bahamas 

 (Rankin, type locality). 



The larger chela is very much like that of armillatus in form 

 and sculpture, but the dactyl articulates more obliquely and is 

 much less compressed and not so broad in a side view ; the 

 tip, as seen from above, being thick, blunt, and scarcely narrowed ; 

 in a profile view the dactyl is quite different from that of the 

 latter, for the tip is bluntly rounded and the dorsal edge back of 

 it is not straight, but slightly convex; the plunger is also very 

 different, being about as broad, but not nearly so prominent, and 

 its distal edge rises at nearly a right angle to the cutting surface, 

 while in armillatus it slopes back at a very obtuse angle. The 

 notch back of it is narrow, with nearly parallel sides, while in 

 armillatus it is wider, deeper, and more V-shaped, but with the 

 outer side concave, owing to the backward curvature of the 

 plunger. In the present species the plunger is nearly as large as 

 the curved part of the dactyl in front of it ; in armillatus it is only 

 about half as large, owing to the much greater depth of the curved 

 tip of the latter. 



The hand is less swollen and rather more oblong, the under 

 margin being straighter proximally and not gradually sloping ; the 

 tip of the claw is much smaller, narrower, more acute, and strongly 

 incurved on the inside ; the notch on the lower margin of the palm 

 is not so large nor so deep, and the margin beyond it is not so 

 convex ; the notch in the upper margin is very similar in the two 

 species, but the grooves running from the two notches on the inner 

 surface of the hand are different, though similar in arrangement; 

 on the outer side of the palm the groove that runs back from the 



