CARCINOLOGICAL STUDIES. '253 



Randall's description agrees very well with the foregoing, 

 I must, however, observe that he describes the anterior 

 frontal margin as » profoundly excavated", the anterior legs 

 of the male as being »at least twice the length of the 

 body" and that his specimen was l^/',y inches long, thus 

 almost twice as large as our adult male. I suppose , how- 

 ever, that the two named dififerences are to be ascribed 

 to the much smaller size of our specimens. 



Measurements of the two largest individuals : 



millimetres. 



cf 9 



Distance between the external orbital angles 19 Vg l^*/^ 



Length of the cephalothorax lö^/^ 14^/4 



Breadth of the front 12 lO^/^ 



Breadth of the posterior margin .... 7^/4 8. 



The two ova-bearing females are of a smaller size than 

 the adult male, the cephalothorax of the larger one is 12 

 mm. long, that of the other only 10 mm. 



11. Sesarma angic stipes Dana. 

 (Fig. 5). 



Sesarma angusiipes, Dana, Unit. States Explor. Exped. Crustacea, 

 p. 353, PI. XXII, fig. 7. — Stimpson , Annals of the Lyceum of 

 Natural History ot New York, Vol. VII, -1.S62, p. 66. — Sidney J. 

 Smith, Notes on American Crustacea, in: Trans. Connecticut Acad. 

 Vol. II, 1870, p. 159. 



Sesarma R'lcordi , Milne Edwards , in : Annales Sciences Naturel- 

 les, T. XX, 1853, p. 183. 



Two female specimens from St. Domingo. 



These two specimens doubtless belong to Sesarma Ricordi 

 M. E. , as I found by comparing them in Paris with the 

 original type-specimen , a male from the Antilles. I de- 

 scribe them , however, under the name of Ses. angustipes , 

 because I believe that Dana's species is identical with Ses. 

 Ricordi, as was already supposed by Stimpsou. Daoa figu- 



r^iTotes from the I..eytleii Mitseum , "Vol. XIV. 



