OCYPODE AFRICAN A. 253 



Ocyp. convexa Stimpsou, is also somewhat applicable to 

 this species, and perhaps also Ocyp. laevis Dana may be 

 allied to our form, (the description of the latter is not in 

 my hands) or even identical , but in all cases the name of 

 kuhlii must have the priority. 



Ocypode africana n. sp. 



A single fine male specimen of this inhabitant of the 

 shores of tropical West-Africa from Liberia to the Congo 

 was pi'esented by Mr. P. Kamerman, who made already 

 several very interesting collections for our Museum. This 

 species was already known to Mr. Hilgendorf (1. c. pag. 81), 

 whose specimen was from Liberia, but he did not de- 

 scribe it; our individual was found on the shores of the 

 Congo coast. 



In its outward appearance this species extremely resem- 

 bles the Indian Ocyp. corclimana Latr., from which it is 

 however at first sight distinguished by the occurrence of a 

 musical ridge on the inner surface of the larger hand , and 

 our species must be regarded as the representative of that 

 Indian species in the seas of West-Africa. 



Upper surface of the cephalothorax very convex longi- 

 tudinally , everywhere covered with minute depressed gra- 

 nulations; front very much deflexed, granular ; external or- 

 bital angles extending as far as the rounded prominence 

 of the supraorbital margin , directed inward , though not 

 so much as in Ocyp. cordimana , at least in the specimen 

 before me; that part of the minutely granulated lateral 

 margin , that lies between the epibranchial and orbital angles 

 a little convex, the posterior part directed obliquely after- 

 wards; epibranchial angle projecting a little more outward 

 than the orbital angle , and situated more forward than in 

 Ocyp. cordimana , that portion of the lateral margin which 

 lies between the epibranchial and orbital angles being re- 

 latively shorter in proportion to the whole lateral margin 

 than in the Indian representative of our species. Eyepeduucles 



Notes from the Leytleii IVTuseuixi, "Vol. HI. 



