ABIDA. 275 



The records of this species in Portugal and Algeria, made 

 about fifty years ago, have not been confirmed by later col- 

 lections, so far as I can learn. A. Nobre, a careful observer, 

 could give no confirmation of the record from Portugal, in his 

 work of 1908. Its range in Spain is probably not greater 

 than that of A. polyodon. 



Rossmassler's figures (pi. 43, figs. 4-6) represent a shell 

 with shorter terminal cone than those I have seen from Luz 

 and Bareye (Hautes-Pyrenees) and Spain. The parietal cal- 

 lous seems to have been very thin. In most of the specimens I 

 have seen it is quite distinct or even forms a distinct ledge. 

 Often there is a small denticle at each end of the parietal cal- 

 lous, or its whole extent may be cut into low denticles (pi. 43, 

 figs. 1, 2, Luz). Rossmassler's locality, Carcassonne, was 

 erroneous. According to Moquin-Tandon (p. 378), Braun, 

 who supplied Rossmassler's types, obtained it at Bareges. It 

 is quite abundant, though only in certain localities, around 

 Saint-Sauveur. 



Moquin-Tandon defined two varieties, both from Luz: 

 cycloides, shell with the peristome continuous ; and multidens, 

 shell with the peristome subcontinuous, aperture with a small 

 tooth on the penult whorl near the columellar margin, 2 colu- 

 mellar lamellae; the lower palatal plica more strongly devel- 

 oped. According to Westerlund (Malak. BL, vol. 22, p. 122) 

 the var. multidens is a synonym of P. partioti. Yet as that 

 species was well known to Moquin-Tandon, the reference ap- 

 pears dubious. 



Var. conispira Westerlund. Shell gradually elongate-conic 

 from the wide and somewhat transverse base, acute, greenish- 

 white, densely, regularly costulate; Sy 2 whorls very slowly 

 increasing. Aperture situated wholly below the external half 

 of the base; angular lamella very small, parietal long, colu- 

 mellar fold very short, strong. Length 6, diam. at the base 

 3 mm. Albarrasin, Spain (WesterL, Nachrbl., 1893, p. 120; 

 Synops. Moll. Extramar. Reg. Pal., i, 1897, p. 87). 



Var. major Bgt. Shell of a little greater size, length 8, 

 diam. 3 mm. Algeria: Oued-Staoueli (Bourguignat) . 



Var. crassilabrum Bgt. Shell resembling the type, but the 



