130 gibbons: on w. Indian pulmonifera. 



Orthalicus undatus, Brug. Spanish Main, from Puerto Cabello 

 to Cartagena; Vera Cruz; also Trinidad and Grenada. 

 Specimens collected on the mainland are considerably larger 

 than those from the islands. Puerto Cabello specimens have 

 an unusually thick epidermis. 



Bulimulus sepuichralis, Poey. Habana. Many are hardly 

 distinguishable from specimens of B. temdssitnus, Fer., col- 

 lected at Trinidad. 



B. exilis, Gm. St. Thomas, St. Lucia, and Barbadoes. Specimens 

 from the last island are invariably much broader and more 

 obese than the St. Thomas' shells, while the St. Lucia 

 examples form a still more marked variety, being very slender 

 and altogether smaller than the others. 



B. Knorri, Pfr. Puerto Cabello. On cacti only. A white 

 variety with orange colored apex and peristome is nearly 

 as common as the type. 



Streptaxis deform is, Fer. Georgetown, Puerto Cabello, Sab- 

 anilla, Cartagena, and Trinidad. Specimens from the three 

 last localities are barely half the size of the others. 



Ennea bicolor, Hutton. St. Thomas and St. Lucia. This species 

 would appear to be spreading ; it is improbable that it was 

 introduced at more than one point originally, viz., Trinidad. 

 Specimens I have from Mauritius differ merely in being a 

 little shorter and more solid. 



Cionella lameilata, M. & R. St. Lucia, Grenada, Tobago, 

 and Trinidad. At Puerto Cabello a closely allied species 

 occurs ( C. Funcki, Pfr. ), differing from C. lameilata in being 

 narrower and less tumid, more strongly striated, less trans- 

 parent, and with the columellar lamina more prominent. 

 The animal in both species is ovoviviparous, containing 6-8 

 young. 



Spiraxis simplex, Guppy. Trinidad. Eggs large, calcareous, 

 white, like those of Sfc'7ipgyra. 



J.C, ii.. May, 1379 



