136 



ACHA.TWINjE. 



Genus ACHAT1NELLA, Swainson. 



Shell imperforate, bulimiform ; aperture ovate, acute 

 posteriorly; columella strongly toothed at the base or in 

 the middle, sometimes twisted, lamelliform, produced; peri- 

 stome simple or labiate, margins unequal. 



Ex. A. decora, Ferussac, pi. 74, fig. 2. Shell, A. vul- 

 pina, Ferussac, fig. 2, a. 



The species of this genus are all from the Pacific Islands, 

 where they live among the foliage of the low bushes, in 

 shady places, especially in the neighbourhood of the sea; 

 they are very numerous in the Sandwich Islands ; the 

 females are ovoviviparous, in which respect they resemble 

 Partula. 



Species of AchatineUa. 



abbreviata, Reeve. 

 adusta, Reeve. 

 ampla, Newc. 

 bacca, Reeve. 

 bella, Reeve. 

 bilineata, Reeve. 

 Buddii, Newc. 

 casta, Neivc. 

 castanea, Reeve. 

 colorata, Reeve. 

 concinna, Newc. 

 conspersa, Pfeiff. 

 crassidentata, Pfeiff. 

 curta, Newc. 

 decora, Ferns. 

 Euiersoni, Newc. 

 fulgens, Newc. 

 germana, Newc. 

 globosa, Pfeiff. 

 gracilis, Pfeiff. 

 Johnsoni, Newc. 



lorata, Ferns. 

 lugubris, Chem. 

 melanostoma, Newc. 

 Mighelsiana, Pfeiff. 

 napus, Pfeiff. 

 nivosa, Newc. 

 olivacea, Reeve. 

 polita, Newc. 

 producta, Reeve. 

 pulchella, Pfeiff. 

 pulcherrima, Swains. 

 recta, Newc. 

 Eeevei, C. B. Adams, 

 rufa, Newc. 

 solitaria, Newc. 

 turgida, Newc. 

 ustulata, Newc. 

 valida, Pfeiff. 

 ventrosa, Pfeiff. 

 venulata, Newc. 

 vulpina, Ferus. 



