150 NEPTINUS CONVEXUS DE HAAN. 



NOTE XV. 



OARCINOLOGICAL STUDIES IN THE LEYDEN 

 MUSEUM. 



BY 



Dr. J. G. DE MAN. 



N" 3. 



1. Neptunus diacanthus Latr. 



We received many specimens from Aruba , West-Indies , 

 and from difi'erent localities of tbe West-African Coast, 

 (Liberia, St. George d'Elmiua, Congo), tbat all wholly 

 agree with one another. I suppose Neptumis margmatus 

 Alph. Milne Edwards (Archives du Musee, X, pag. 318) 

 to be a mere variety of this species. 



2. Neptunus convexus de Haan. 



Confer : Fauna Japonica , Crustacea , pag. 9. {Pontus 

 convexus n. sp.). 



By comparing the original specimen of Port. (Pontus) 

 convexus de Haan , collected by Mr Macklot in the Molluccas , 

 I found this species to be identical with Neptunus Sieholdii 

 Alph. Milne Edwards, Archives du Musee, t. X., pag. 323, 

 PI. XXXV, fig. 5. — Though the description given by 

 de Haau be very short , still his name must have the 

 priority. 



Note» from ttie Leyden IVIuseutn, Vol. V. 



