AZOREAN GROUP. 43 



Bulimus decollatus, Alb.. Mai. Mad. 54, t. 14, f. 16-17 



(1854) 

 „ „ Morel., Hist. Nat. cles Acor. 196 



(1860) 

 „ „ Drouet, Faun. Acor. 163 (1861) 



Stenogyra decollata, Mouss., Faun. Mai. des Can. 120 



(1872) 



Habitat Sta. Maria, et S. Miguel; bine inde in apricis 

 inferioribus, forsan introducta. 



It is only in the islands of Sta. Maria and S. Miguel that the 

 Mediterranean S. decollata has hitherto been observed, — namely, 

 near the fort of San Braz in the former, in company with the H. 

 paupercula, and in a somewhat calcareous district of the latter 

 which constitutes the southern base of the Facho. In all pro- 

 bability it has been naturalized in the archipelago. 



Genus 11. PUPA, Drap. 



(§ Truncatcllina, Lowe.) 



Pupa microspora. 



Pupa microspora, Lowe, Ann. Nat. Hist. ix. 275 (1852) 

 „ Pfeiff., Mon. Hel. iii. 532 (1853) 



„ „ Lowe, Proc. Zool. Soc. Loud. 207 (1854) 



„ „ Alb., Mai. Mad. 61 (1854) 



„ „ Morel., Hist. Nat. des Acor. 197, t. 5. f. 1 



(1860) 

 „ „ Drouet, Faun. Acor. 167 (1861) 



„ „ Mouss., Faun. Mai. des Can. 124 (1872) 



Habitat S. Miguel, Fayal, et Pico ; sub foliis dejectis, 

 lapidibus, et inter muscos in umbrosis humidiusculis occurrens. 



This fragile, subdiaphanous, conical, edentate little Pupa, 

 which is so abundant, particularly amongst ferns, in the laurel- 

 woods of a high elevation both in Madeira and the Canaries, 

 and which is very nearly allied to the European P. edentula, 

 Drap., was found by Morelet and Drouet in S. Miguel, Fayal, 

 and Pico, — in the first and second chiefly in the Caldeiras, and 

 in the third amongst the fallen leaves of the Persea azorica, 



(§ Gastrodon, Lowe.) 



Pupa umbilicata. 



Pupa umbilicata, Drap., Tabl. des Moll. 58 (1801) 



Helix anconostoma, Lowe, Cambr. Phil. 8. Trans, iv. 62. 



t. 5. f. 30 (1831; 

 Pupa „ Pfeiff., Mon. Hel. ii. 314 (1848) 



