248 CARCINOLOGICAL STUDIES. 



latter is almost as long as high. Its outer surface and 

 rounded upper and lower margins are very slightly 

 rugose and erose and these small rugosities are even 

 visible to the naked eye, especially towards the upper and 

 lower margins and towards the articulation with the palm. 

 The compressed fingers , leaving a small interspace between 

 them , when closed , present a few longitudinal rows of 

 small puncta on their outer surface and the latter appears 

 even minutely granulate when examined under a strong 

 maguifying-glass. The index presents fifteen or sixteen 

 small teeth , of which two on the middle are a little lar- 

 ger, and similar teeth are observed on the mobile finger. 

 The fingers of the smaller hand (fig. 3l>), meeting toge- 

 ther when closed , are about once and a half as long as 

 the palm; as regards its denticulation and the structure 

 of the outer surface , the smaller hand resembles the 

 other. 



The ambulatory legs are slender, especially the mero- 

 podites. 



Measurements : (ƒ 



Length of the cephalothorax (abdomen excluded) 23 mm. 



/3 



Distance between the external orbital angles . 16' 

 Greatest breadth of the cephalothorax. ... 35 » 

 Breadth of the anterior frontal margin ... 7 » 



9. Sesarma Eydouxi M. E. 



Sesarma Eydouxi , Milne Edwards , in : Annales Sciences Natu- 

 relles, 3e Série, T. XX, 1853, p. 184. 



I examined in Paris the type-specimen of this species , 

 a male from Touranne, which presents the following mea- 

 surements : 

 Distance between the external orbital angles . 31 V* mni. 



Length of the cephalothorax 26 V^ » 



Breadth of the upper margin of the front . . 18^/4 » 

 Breadth of the posterior margin of the cepha- 

 lothorax 13^/2 » 



Notes from. th.e Lieyden ]M-u.seum., "Vol. XIV", 



