154 GEOTHELPHUSA KUHLII. 



near one auother ou the external surface; the hand bears 

 three spines , one a little beyond the middle of the internal 

 margin of the upper surface, the two others on the ex- 

 ternal margin of it, one immediately near the articulation 

 with the carpopodite , the other also somewhat beyond the 

 middle. Also the wrists and hands bear many granular 

 lines and transverse rugosities on their whole length. 



The distance of the last antero-lateral teeth is 43 m.m., 

 and the length of the carapace (front included) 37 m.m. 

 The hands are 57 m.m. long. 



9. Geothelphusa Kuhlii n. sp. 



The Leyden Museum contains one female specimen of 

 this species , collected at the island of .Java by Mesrr. Kuhl 

 and van Hasselt, more as half a century ago and still a 

 female and male specimen from an unknown locality. 



This species is most closely allied to Geothelphusa De- 

 haanii White from Japan and to Geothelphusa obtusipes 

 Stimpson from the island of Ousima and seems to be the 

 representative of these forms at the island of Java, Only 

 by a close examination it is possible to recognize the dif- 

 ferences between these forms , though I can only compare 

 it with G. Dehaanii White, the species described by 

 Stimpson wanting in the Museum. 



As regards the shape and size of the carapace and the 

 structure of the legs , our new species very closely resem- 

 bles the Japanese Geoth, Dehaanii White , but Geoth. 

 Kuhlii may be distinguished by the following characters. 

 The front , being equally broad in both species , has its 

 anterior margin slightly emarginated in the Java species , 

 it being straight in Geoth. Dehaanii White. The orbits 

 are comparatively much smaller in Geoth. Kuhlii^ though 

 having the same shape in both species. The whole upper 

 surface of the carapace is minutely punctate, like also in 

 Geoth. Dehaanii; the antero-lateral margin is granulate in 

 the Japanese species , smooth in the other. The lateral 



>rotep I'roTO tlie Ueydeu IMEuseum, Vol. V. 



