232 THE ABIDA GROUP. 



(May, 1854); Monogr., iv, 667; vi, 307. KUESTEE, Syst.. 

 Conch. Cab., p. 174, pi. 21, f. 6, 7. 



This species stands very close to B. variolosa, but its outline 

 is more conic, and the teeth are perhaps not quite so large. 

 Pfeiffer did not see the small lower palatal plica, but it was 

 described and figured by Kuester, who worked with Pfeiffer 's 

 specimens, and it is present in paratypes received from New- 

 comb. 



As in variolosa, the columellar lamella is far within the 

 margin. It has the same sculpture described for variolosa. 

 Figured from specimens received from Newcomb, one of which 

 measures: length 1.8, diam. above aperture 1.2 mm. (figs. 8, 



ID. 



A specimen from Cariaquita is drawn in fig. 7 ; length 1.5, 

 diam. 1.15 mm. 



6. BOTHRIOPUPA LEUCODON (Morelet). PL 29, figs. 1, 4. 



Shell deeply rimate, ovate-conic, rather obtuse, slightly 

 striatulate, pellucid, corneous; whorls 5, a little convex. 

 Aperture obloug-subcircular, with a pliciform, angular, whit- 

 ish tooth erect in the middle of the parietal wall. Length 2, 

 diam. 1 mm. (Morelet). 



Guatemala: Salama, in the province Vera Paz (Morelet). 



Pupa leucodon MORELET, Testacea Novissima, ii, 1851, p. 

 13. PFR., Monogr., iii, 537. CROSSE et FISCHER, Moll. Terr. 

 et Fluv. Mexique et dans TAmer. Centr., i, p. 311, pi. 14, f. 2. 



THE ABIDA GROUP. 



The genera Odontocyclas, Sandahlia, Abida, Granopupa 

 and Chondrina in Europe and northern Africa, Fauxulus in 

 South Africa, appear to form a natural series. The apertural 

 lamellae and plicaa are arranged essentially as in the small 

 forms of Gastrocoptina, but these genera differ from the latter 

 by the generally larger and more solid shell of more numerous 

 whorls, either cylindric with conic summit or somewhat fusi- 

 form or conic. As in other Gastrocoptinae, the initial whorl is 

 very minutely, irregularly granulose. The angular and pari- 

 etal lamellae are always separate throughout, and the axis is 



