394 A. E. Verrill Decapod Crustacea of Bermuda. 



than Stimpson's type. On tins account, probably, it does not fully 

 agree Avith either description. 



The carapace is relatively wider than st.-ited l>\ Stimpson ; the 

 ratio of length to breadth, minus lateral spine-, is l:l.:::;. The 

 carapace is strongly aivolated, and has conspicuous curved trans- 

 verse ridges with sharp, granulated anterior edges. Its surface is 

 well covered with tine and rather short hairs, arising from line 

 granulations, and with a fringe of longer hairs on the lateral and 

 frontal margins. The legs are also pubescent and fringed with 

 slender hairs. 



The four true frontal teeth are conspicuous ; a little prominent ; 

 and all are of nearly the same form and breadth: they are obtusely 

 rounded at the end; the two middle ones are a little longer and a 

 trifle narrower than the other>. \\ ii li >lie middle notch a little nar- 

 rower ; the notch bet \\een the outer of these and the next tooth 

 (bilobed orbital) is deeper and narrow. The orbital is distinctly 

 bilobed, tin- outer lobe brimr a little larger and longer than the 

 other, hut not so long or large as the true frontal teeth. 



The nine marginal teeth are alternately large and small ; the small 

 ones, which are the I'd, Ith, nth and sth, lack the naked sharp tips 

 seen on the :id, .">th, 7th and !th. The Mh is the smallest. The 

 tirst, or outer orbital, is broader than the others, with the outer side 

 broadly arched. The others are all -t roiiuly curved forward and 

 acute, fringed with hairs on the edij-es. The la-t, or tith, is not much 

 longer than the 7th, but twice as long :i> the -lii; it is less curved 

 forward than the others and bends a little upward. 



The chelipeds are long ami large; about two-third*- of the inerus 

 projects beyond the edge of the carapace : it has four stout, naked- 

 tipped, sharp granulated spines on its front edge, <f which the prox- 

 imal is smallest ; the distal posterior spine, usually present in this 

 group, is lacking. 



The carpus has a very small outer spine, and a much larger inner 

 one, which is slightly curved forward and very sharp, but it reaches 

 less than one-third the length of the upper side of the maims, being, 

 therefore, much shorter than in Stimpson's and Miss Rathbun's 

 specimens. The proximal or articular spine of the maims is of 

 moderate size; the distal dorsal one is rather larger, strong at base, 

 very sharp, divergent ; its front edge is situated at about the distal 

 third of the dorsal edge. The surface of the chelae is covered with 

 short hairs and is granulated ; there ai - e four strongly granulated 

 ribs besides the dorsal one on the outer surface, but no additional 

 spine. 



