206 TEST A Ci: A ATLAXTHA. 



Genus 9. STENOGYRA, Shuttl. 

 Stenogyra decollata. 



Helix decollata, Lmn., Syst. Nat. (ed. 10) 773 (1758) 

 Bulimus decollatus, Loive, Cambr. Phil. 8. Trans, iv. 62 



(1831) 

 „ „ Id., Proc. Zool. Soc. Lond. 199 (1854) 



„ „ AW., Mai. Mad. 54. t. 14. f. 16-17 



(1854) 

 „ „ Morel., Hist Nat. des Acor. 196 



(1860) 

 „ „ Paiva, Mon. Moll. Mad. 102 (1867) 



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



(1872) 

 Bulimus decollatus, Morel., Journ. de Conch, xiii. 238 



(1873) 

 „ „ Watson, lb id. 222 (1876) 



Habitat Maderarn ; sub lapidibus in aridis apricis prope 

 Funchal bine inde lecta. Forsan e Lusitania olim translata. 



The widely spread 8. decollata, wbich is well-nigh universal 

 in Mediterranean latitudes, and which occurs also in the Azorean, 

 Canarian, and Cape-Verde archipelagos, has established itself in 

 a few spots of a rather low altitude around Funchal, — where it 

 may perhaps have been accidentally naturalized, at some period 

 (not very remote) since the colonization of the island, from 

 south-western Europe. I have taken it abundantly in a small 

 gulley on the arid slopes of the Pico da Cruz, leading clown 



theless just add the following diagnosis, in order to render it the more easily 

 recognizable. 



Subulina striatella. 

 T. angustula, subulato-turrita, albida, vix nitidiuscula, argute et con- 

 fertissime longitudinaliter costulato-striata ; spira longissima, regulari, elon- 

 gate turrita, apice obtusiuscula, ; anfractibus 8-9^, convexiusculis, sutura, 

 valde irupressa, ultimo (^ longitudinis paulo excedente) mox supra aperturam 

 parvam plus miniis evidenter angulato-carinato ; columella brevi, arcuatii, 

 basi abrupt e terminate ; peristomate simplici, acuto. — Long. lin. cirea 7 ; ajxrt. 

 vix 2. 



Helix striatella, Bang, Ann. des Sc. Nat. 24. 38. t. 3. f. 7 

 Stenogyra (Subulina) striatella, Dhn., Mai. Blatt. xiii. 127 (1866) 

 Achatina striatella, Pfeiff., Mon. Hel. vi. 236 (186S) 

 Habitat Maderam (certe introducta) ; tria sjjecimina (emortua, subdecor- 

 ticata) in horta qiuidam juxta Funchal olim invenit Dom. Bewicke. 



I may just add that, singularly enough, the S. striatella was obtained by 

 Mr. Lowe in Teneriffe, under circumstances almost precisely similar to those 

 under which it was found by Mr. Bewicke at Madeira, — namely (dead) from 

 amongst some refuse in Mr. Hamilton's garden at St a. Cruz. The oblique 

 truncation of the columella is a little wider in the Madeiran specimens than 

 it is in those from Teneriffe. 



