70 PODOPHTHALMOUS CRUSTACEA. 



As to the outlines of the carapace , the relative 

 breadth of the front and the course of the lateral margins, 

 our species completely resembles Gnath. pilipes Alph. M. 

 Edw. , but the carapace is very depressed and not orna- 

 mented vdth other furrows except the transverse groove 

 on the middle , and the three teeth of the antero-lateral 

 margins project as little as in Gnath, Riedelii. On the 

 contrary our species is quite similar to Gnath. Riedelii as 

 regards the structure of the region of the antennae , the 

 shape of the orbits and of the epistoma. Pleural regions 

 of the inflexed portion of the carapace are smooth. The 

 outer jav7S too have the same shape as in Gnath. Riedelii, 

 but the exopodite (exognathe Alph. M. Edw.) is not longer 

 than the third joint but as long or even somewhat shorter. 

 Chelipedes and legs as in Gnath. pilipes, the margins of 

 the two last joints of the ambulatory legs being ornamented 

 with as long hairs , but the outer surface of the claws is 

 granulated. 



Breadth of the carapace of the male 27 m. m. 

 Length » » 23 m. m. 



We are in the possession of two males collected in the 

 Moluccas by Macklot. 



22. Heterograpsus sanguineus de Haan. 



Fauna Japon : p. 58 , tab. XVI , fig. 3. Milne Edwards, 

 Ann. Scienc. Nat. 1853, p. 193. 



The carcinological collection of the Museum is in the 

 possession of five specimens of this species from Amoy in 

 China. 



Breadth of the carapace of the largest male 44 m. m. 



Length » » 37 m. m. 



Breadth » smallest male 24 m. m. 



Length » » 21 m. m. 



Notes trom the Leyden üMiisetim. 



