SESARMA TAENIOLATA. 27 



the last joint not half the width of the preceding. Anterior 

 legs robust, those of the male much larger than of the 

 female, equal in size; arm with a very strong tooth near 

 the distal extremity of its upper margin ; lower margin 

 somewhat denticulated; carpopodite closely covered with 

 granules or small tubercles , with granulated internal mar- 

 gin , but not toothed. Outer surface of the hands granu- 

 lated , with a slight granular line rather on the middle ; 

 outer surface of the fingers almost smooth ; upper margin 

 of the hands with a longitudinal, comb-like, closely pecti- 

 nated ridge ; mobile finger with a longitudinal ridge on 

 its upper surface with about fifty to sixty transverse striae; 

 inner surface of the hands with a very prominent, very 

 granulated crest. Ambulatory legs short , coarse , with 

 rather much enlarged meropodites and slightly hairy. 



Breadth of carapace of the male 40 mm., length 36 mm. 



Breadth of carapace of the female 37 mm., length 32 mm. 



According to our authentic specimens from Java , this 

 species was considered by de Haan to belong to Sesarma 

 fascicularis Herbst or Sesarma tetragona Fabr. According 

 to Mr. Hilgendorf however , these species are quite different , 

 Sesarma fascicularis Herbst being distinguished at first 

 sight by the nine tubercles on the upper margin of the 

 mobile finger; Sesarma tetragona M. Edw., according to 

 the description , given by Mr. Alph. Milne Edwards (Nouv. 

 Arch. t. IX, p. 304), differs by the want of ridges on the 

 upper surface of the hands, by the upper margin of the 

 mobile finger not being provided with a subtilly striated 

 longitudinal ridge , by the absence of a spine at the distal 

 end of the upper margin of the arm , by the shape of the 

 penultimate joint of the male abdomen etc. 



Our specimens of Sesarma taeniolata, which have been 

 collecte dat the island of Celebes, agree also entirely with 

 the description given by Mr. Miers, except that of the 

 carapace which he says is very convex; the difference is 

 however merely subjective; nor makes he mention of the 

 carapace being covered with tufts of hair. 



Notes from the Leyden IVXuseum , "Vol. IX. 



