AZOREAN GROUP. 39 



Bulimus Hartungi, Pfeiff., Mon. Hel. iv. 503 (1859) 



„ „ Morel., Hist. Nat. des Acor. 188. t. 4. 



f. 2 (1860) 

 „ „ Drouet, Faun. Acor. 162 (1861) 



Habitat Sta. Maria, et recens et semifossilis ; sub lapidibus 

 in saxosis, parum vulgaris. 



The present Bulimus, which is found in Sta. Maria, and 

 which occurs also in a subfossil state on the southern coast of 

 that island, is considerably smaller and less ventricose than the 

 B. Santa- Marianus (it being only about 10 millimetres in 

 length), and it seems to be free from a variegated band or 

 fascia. In point of fact, it is far nearer to the B. vulgaris, of 

 which it might almost be regarded as a small and stunted 

 modification peculiar to Sta. Maria (in which island the typical 

 vulgaris has not yet been observed). Indeed even Morelet 

 admits that occasional ' formes intermediaires ' of the B. Har- 

 tungi are not easy to separate from the vulgaris, — adding, how- 

 ever (which seems to me to involve a petitio principii), ' on ne 

 peut expliquer ici ces deviations du type par l'alliance des deux 

 especes, car le B. vulgaris ne par ait point exister dans Vile de 

 Sta. Maria? 



The B. Hartungi is described as both ' ruguloso-striata ' 

 and ' spiraliter granulata ' ; and it is said to possess the habit 

 of coating itself over with a hardened envelope of earth, — much 

 as one sees in the Canarian B. Guerreanus, from Hierro, as well 

 as (occasionally) in the darker forms of the B. variatus, W. et 

 B., from Lauzarote, and sometimes even in the badiosus, Fer., 

 of Teneriffe. Its volutions are rather convex, with the sutural 

 line deeply impressed ; and the upper and lower margins of its 

 peristome are connected by a thin callus. 



Bulimus vulgaris. 



Bulimus vulgaris, Morel, et Dr., Journ. de Conch, vi. 150 



(1857) 

 Mouss., Viert. der Nat. Zurich, 166(1858) 

 Pfeiff., Mon. Hel., iv. 418 (1859) 

 Morel., Hist. Nat. des Acor. 184. t. 4. 

 f. 3 (1860) 

 „ „ Drouet, Faun. Acor. 161 (1861) 



Habitat S. Miguel, et Fayal ; inter folia emortua, sub la- 

 pidibus, et cset., sat vulgaris. 



A species which appears to be found in S. Miguel and Fayal 

 (in both of which islands it was met with likewise by Mr. 

 Grodman), being more particularly abundant in the former, — 

 where it occurs beneath stones, under fallen leaves, and at the 



