508 TEST ACE A ATLANTICA. 



Habitat ins. Cap. Viridis (sec. Morelet) ; mihi non obvia. 



It is much to be regretted that Morelet should have inserted 

 this species, and three or four others, into his lately published 

 list of the Cape- Verde Land-Shells without stating on whose 

 authority they have been added to the fauna, and from what 

 particular island (or islands) they were obtained. Not a syl- 

 lable is placed on record concerning them ; and I can only as- 

 sume therefore that they were found by MM. Bouvier and de 

 Cessac, who omitted to take any note of their precise habitats. 

 There is nothing more probable than that this common and 

 widely-spread Mediterranean Bulimus — which occurs in the 

 Azorean, Madeiran, and Canarian archipelagos, as well as on the 

 west coast of Morocco — should extend to the Cape Verdes, or 

 perhaps should have been naturalized there accidentally from 

 more northern latitudes : but, still, if true, it is essential that 

 we should know this fact accurately, — wliich can scarcely be said 

 to be the case from the mere admission of the name into a local 

 catalogue without any information being given to justify its ap- 

 pearance. As Morelet, however, has entered it amongst the 

 ascertained members of the fauna, I will not reject the B. ven~ 

 tricosus^ — even whilst unable to report, through his total silence 

 on the subject, either ivhence or by ivhom it was procured. 



(§ NapaHS, Alb.) 



Bulimus gemmula. 



Bulimus Gemmula, Bens., Ann. Nat. Hist, xviii. 434 

 (1856) 

 „ Pfeiff., Mon. Hel. iv. 415 (1859) 



Buliminus gemmula, Dohrn, Mai. Bldtt. xvi. 10 (1869) 

 Bulimus gemmula. Morel., Journ. de Conch, xiii. 242 

 (1873) 



Habitat S. Antao, S. Vicente, S. Nicolao, S. lago, Fogo, et 

 Brava ; late sed vix copiose diffusus. 



Although regarded generally as a Bulimus (pertaining, as 

 Benson observes, to the group which embraces the B. nitidulus, 

 Pfeiff., the putillus, Shuttl., the coinopietus, Hutt., and the 

 onarginatus, Say, and being allied according to Dohrn to 

 Morelet's B. S'negalensis), this little shell is far more sugges- 

 tive at first sight of a rather conical Pupa, — its shining, cor- 

 neous, subdiaphanous surface and the obscure plait on its 

 ventral paries adjoiniDg the upper angle of the peristome 

 (which, however, in the examples now before me, is quite as 

 often totally obsolete as distinguishable) giving it, apart from 

 the reduced numbers of its whorls, much the prima facie ap- 

 pearance of certain species in the section Gastrodon of that 



