OCYPODE CORDIiMANA. '249 



by Mr. G. Schlegel ') , one adult female specimen from the 

 island of Xulla-Bessy , four specimens (2 cf , 2 9) from the 

 shores of Shaughir and one fine male individual, collected 

 at Bezoeki (Java) by Mr. Semmelink. All these specimens 

 wholly agree with one another. 



This common Indian species may be distinguished from 

 all other species of Ocypode, 1^. by the eyes being devoid 

 of terminal spines even in the adult, 2°. by the inner sur- 

 face of the larger hand having no trace of a musical ridge 

 both in the male and in the female and 3''. by the shape 

 of the cephalothorax and of the legs. The description of 

 this long known form being still ever insufficient, it will 

 be allowed to give another one. 



The cephalothorax is very high and thick ; its upper sur- 

 face extremely convex longitudinally , everywhere granu- 

 lated , the granules being somewhat coarser on the lateral 

 portions and on the front. Front with a minute triangular 

 median incision on its anterior margin. Supraorbital mar- 

 gin transverse with a rounded prominence on each side of 

 the front, with the acute external orbital angles directed 

 forward , projecting beyond the described prominence and 

 beyond the base of the front. The epibranchial angle pro- 

 jects beyond the external orbital and that part of the gra- 

 nulated lateral margin , that lies between these two angles , 

 is convex ; behind the epibranchial angle the lateral mar- 

 gin is rather a little concave and does not proceed till the 

 posterior margin of the carapace but ceases at some dis- 

 tance from it. The minutely denticulated suborbital mar- 

 gin is separated by a deep incision from the external or- 

 bital angle , and the internal suborbital tooth is acute 

 and granulated. Pterygostomian regions convex and gra- 

 nulated. Internal inferior margin of the arms provided 

 with a denticulated crest. The sternum is less granular 

 than that of Oci/p. ceratophthabna and the various joints of 



1) These Amoy specimens were labelled by Mr. Herklots as Ocypode gros- 

 simana Herklots; happily, as far as I am aware, this name never has been 

 published, for they belong all to the common Ocup. cordimana Latr. 

 Notes irom the Leydeii Aluseuixi, "Vol. III. 



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