NERITA. 113 



unequal ribs ; aperture grey, rather smooth, with (in this 

 specimen) a coloured articulation on the edge of the colu- 

 mellar plate. 



46. LiSTERi, f. 51, 54, Reeve. — Nigra, spiraliter obscure 

 sulcata ; spira gracile elevata, anfractibus superne declivibus ; 

 apertura obliqua, angusta cseruleo-flavida laevi, area colu- 

 mellari rubescenti fere edentula. — A sloped, pointed, black 

 species, with very smooth, rather narrow, yellowish mouth 

 and extremely obscure teeth on the edge of the columella. 

 It is probably the N. nlvosa of Keeve. 



47. JAPONiCA, f. 112, Dunker. — This little shell resembles 

 N. Yolclii in appearance ; but as my sketch was taken in haste 

 before the removal of the B. M. collection, I cannot describe 

 or compare it. 



48. ARABiCA, f. 65, Reeve. — Grlobosa, tenuiter striis incisis 

 distantibus incisa, spira parva, anfractibus superne depressis, 

 colore fulvo griseo fuscoque tessellata, apertura subrotunda, 

 area columellari rude rugata, margine inequaliter dentato, 

 labio externo intus superne unidentato. — Rather squarely 

 globose, tessellated with brown and black between incised 

 spiral strise, columellar area coarsely wrinkled ; one lateral 

 tooth appears inside the outer lip above. 



49. SENEGALENSis, f. 76, GmeUn. — Quam N. arabica magis 

 obliqua, colore magis variegata et fasciata, area columellari 

 Iseviuscula, aurantio tincta. — More oblique than the preced- 

 ing, and, in the specimen figured by Reeve, more variegated 

 in colour. The columellar plate is not so strongly wrinkled. 



50. LoNGii, f. 90, Reclus. — Subglobosa, laevis, solida spi- 

 raliter inciso-striata, fulva, griseo tessellata ; spira subexserta ; 

 apertura subexpansa alba granulata et rugata; anfractibus ad 

 sutui'am elevatis tum concavo-depressis. — But for the dif- 

 ference in locality one might suppose this and Reeve's 

 arabica to be the same ; but the spire is much more exserted, 

 and the last whorl falls obliquely. 



51. Deshatesii, f. 19, Rechiz. — Globosa, spiraliter costis 

 prominentibus numerosis interstitia agquantibus nigro articu- 

 latis lirata, lutea, griseo marmorata ; spira elevata, anfractibus 

 subrotundis ; apertura subrotunda ; area columellari rugis et 

 dentibus maximis incrassata ; labio externo intus crenulato 

 superne bidentato. — This solid, rounded species, with deep 



