•20G TEST ACE A ATLANTIC A. 



Genus 9. STENOGYRA, Shuttl. 

 Stenogyra decoUata. 



Helix decoUata, Lvmu, Syst. Nat. (ed. 10) 773 (1758) 

 Bulimus decollatus, Lowe, Camhr. Phil. S. Trans, iv. 62 

 (1831) 

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



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



(1854) 

 „ „ Morel., Hist Nat. des Agor. 196 



(1860) 

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



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



(1872) 

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

 (1873) 

 „ „ Watson, Ibid. 222 (1876) 



Habitat Maderam ; sub lapidibus in aridis apricis prope 

 Funchal hinc hide lecta. Forsan e Lusitania olim translata. 



The widely spread ♦S'. decoUata, which 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 

 guUey on the arid slopes of the Pico da Cruz, leading down 



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 tiirrita, apice obtusiuscula ; anfractibus 8-9|, convexiusculis, sutura 

 valde impressa, ultimo (^ longitudinis paulo excedeute) mox supra aperturam 

 parvam plus minus evidenter angulato-carinato ; columella brevi, arcaata, 

 basi abrupte terminata ; peristomate simplici, acuto. — Long. lin. circa 7 ; apert. 

 vix 2. 



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

 Stenogyra (Subulina) striatella, Bhn., Mai. Bldtt. xiii. 127 (1866) 

 Achatina striatella, Pfeif., Mon. Hel. vi. 1.'36 (1868) 



Habitat Maderam (certe introducta) ; tria specimina (eraortua, subdecor- 

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



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

 Mr. Lowe in TeneritTe, 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 Sta. Cruz. The oblique 

 truncation of the columella is a littk' wider in the Madeiran specimens than 

 it is in those from TenerifEe. 



