GASTROCOPTA, NORTH AMERICA, WEST INDIES. 87 



G. barbadensis, the columellar lamella is but slightly or not 

 at all buttressed below, and there is no subcolumellar tubercle, 

 though there may be a low callous (fig. 4). The lip is rather 

 thick. It does not seem specifically separable from G. barba- 

 densis, but perhaps is distinguishable as a subspecies or local 

 race. 



According to Aiicey, the specimens formerly reported as 

 Pupa curiesii Drouet from the French Caribbees are refer- 

 able to indigena. 



Pupa uvulifera. PI. 18, fig. 11. Shell umbilicate, cylindric, 

 a little ovate, lightly striatulate, corneous-brown, little shin- 

 ing ; whorls 5 to 6, convex ; aperture semiovate, provided with 

 folds, parietal fold vertical, lamelliform; outer margin thick- 

 ened, reflexed, columellar margin broadly reflexed; umbilicus 

 open, not very deep. Length 3, diam. 1 mm. (Guppy). 



Trinidad (Guppy). 



Pupa uvulifera GUPPY, Ann. and Mag. of Nat. Hist. (4 

 ser.), i, June, 1868, p. 411, no. 9; Proc. Sci. Asso. Trinidad, 

 1869, p. 243 (copied in PFR., Monographia, viii, p. 373) ; 

 Journ. of Conch., vii, p. 219. E. A. SMITH, Journ. of Conch., 

 viii, 1896, p. 244, pi. 8, f. 10. 



I have not seen this form, which has not been defined ade- 

 quately. Guppy 's measurement is clearly wrong, "length 3 

 millim. ' ' probably being a slip for length 2 mm. Mr. Smith 's 

 size-mark is 2.3 mm. long, and the diameter of his figure is 

 nearly half the length, a normal proportion for the group. It 

 is not clear how the Trinidad species differs from G. barba- 

 densis (Pfr.), and until differential characters are indicated 

 it may be placed provisionally in the synonymy of that 

 species. 



Mr. Smith, whose figure is copied on my plate, remarks: 

 "Specimens of this species, presented to the British Museum 

 by Mr. Guppy, exhibit five unequal teeth, viz. : a double pari- 

 etal tooth larger than any of the other teeth, a single colu- 

 mellar tooth, and three palatal teeth, of which the uppermost 

 on the right nearest to the parietal is very small and difficult 

 of observation. P. pellucida Pfr. is very closely allied to this 

 species. ' ' 



