MELAN1A.— Plate XV. 



ventricoso ; aperturd ovatd, margine columellari cal- 

 loso-incurvo. 



The lancet Melania. Shell acicularly subulate, very 

 attenuated at the apex, blackish-olive, whorls ten 

 to twelve, longitudinally plicated, spirally strongly 

 ridged, interstices somewhat excavated, last whorl 

 ventricose; aperture ovate, columellar margin callously 

 incurved. 



Hab. West Africa. 



Chiefly distinguished by the ventricose inflation of the 

 last whorl, and remarkable attenuation of the early ones. 



Species 106. (Mus. Cuming.) 



Melania Tamsii. Mel. testa subulato-turritd, livido- 

 olivaced, rufo-fusco interdum strigatd, suturis et colu- 

 mella albis, anfractibus octo ad novem, subro/undaiis, 

 longitudinaliter plicalis et spiral iter teuuiliratis ; aper- 

 turd parvd. 



Tams' Melania. Shell subulately turreted, livid-olive, 

 sometimes streaked with red-brown, sutures and colu- 

 mella white, whorls eight to nine, somewhat rounded, 

 longitudinally plicated, and spirally finely ridged; 

 aperture small. 



Dunker, Zeitschrift fur Malak. 1845, p. 165. Ind. Moll. 

 Guin. p. 9. pi. 2. f. 9, 10. 



Hab. Island of St. Anthon, Cape de Verds. 



Very closely allied to the Egyptian M. tuberculata, of 

 the same local type, if not a variety of that species. 



Species 107. (Mus. V. d. Busch.) 



Melania comma. Mel. testa subturriculatd, olivaced, 

 ad suturas flaridd, nitente, anfractibus octo ad novem, 

 primis longitudinaliter plicato-costatis, costis subdis- 

 tantibus, ceeteris lavibus ; aperturd parvd, basi effusd. 



The comma Melania. Shell somewhat turriculated, 

 olive, yellowish at the sutures, glossy, whorls eight 

 to nine, the first longitudinally plicately ribbed, ribs 

 rather distant, the rest smooth, aperture small, ef- 

 fused at the base. 



Conrad, New Fresh-water Shells, p. 53. pi. 8. f. 7. 



Hab. Alabama, United States. 



The early whorls of this species, as in many others, are 

 longitudinally ribbed, but the ribs are stronger and more 

 distant from each other thau usual. 



Species 108. (Mus. Cuming.) 



Melania Morchii. Mel. testa ovatd, solidiusculd, ustu- 

 lalo-fuscd, anfractibus perpaucis, declivi-convexis, undi- 

 que dense spiraliter grano-striatis ; aperturd ovatd, ad 

 basin subejfusd. 



Morch's Melania. Shell ovate, rather solid, burnt- 

 brown, whorls very few, slopingly convex, closely 

 spirally grain-striated throughout ; aperture ovate, 

 a little effused at the base. 



Beck, MS. in Mus. Cuming. 



Bab. ? 



A short stout species, finely granulated throughout. 



