26 SESARMA TAENIOLATA. 



postfrontal lobes are little prominent , and do not hide the 

 front, the anterior margin of which is deeply emai'ginate. 

 The penultimate joint of the abdomen of the male is more 

 broad than long. Outer surface of the hands a little gra- 

 nular; for the rest the anterior legs, like the ambulatory- 

 ones , seem to resemble very much those of Sesarma te- 

 tragona. 



The Museum is also in possession of a male specimen 

 of another Sesarma , from Japan , that agrees almost enti- 

 rely with Sesarma intermedia, but diners hj a, comparatively 

 broader and more convex carapace, and by a less emargi- 

 nated front. The rounded postfrontal lobes are also a little 

 more prominent. Perhaps this specimen belongs to Sesar- 

 ma sinensis M. Edw., but the description of this species is 

 so extremely short, that it is quite impossible to identify 

 this form. The breadth of carapace of this specimen is 

 28 mm., the length 23 mm. 



7. Sesarma taeniolata, White. 



White, List Crust. Brit. Mus. p. 38. (1847). Miers, On 

 some Crustaceans from Duke- of- York Island , in Proc. 

 Zool. Soc. 1877, pag. 137, note. Synon: Grapsus. Pa. 

 chysoma , fascicidaris de Haan (nee Herbst) , and Grapsus , 

 Pachysoma , tetragonus de Haan (nee Milne Edwards) , Fauna 

 Japon. Crust, pag. 61. 



Body tolerably thick , carapace quadrate , rather little 

 convex in the male, a little more in the female, with 

 rather parallel, nearly straight lateral margins; there is a 

 second , somewhat smaller tooth behind the acute external 

 orbital angle. Front nearly vertically deflexed, the anterior 

 maro'in siuuated , the median sinus wide ; postfrontal lobes 

 four , rather little prominent, the external a little smaller than 

 the median ones; the groove defining the gastric region 

 deep; the whole surface of the carapace, especially ante- 

 riorly, closely covered with small tufts of hair. Penulti- 

 mate joint of the male abdomen much more broad than long , 



Notes from tUe Leyden SXuseuzu, "Vol. U. 



