272 ABIDA. 



parallel lamella is developed (near the suture, outside of the 

 spiral lamella). There is also a suprapalatal and a sutural 

 plica. 



The distribution has been considered in detail by Comman- 

 dant Caziot in two papers referred to above. He doubts the 

 Algerian record of Bourguignat. In the foothills of the 

 Pyrenees the typical form gives place to the var. ringicula, 

 which extends over the range into southeastern Spain. 



Var. attrita Moquin-Tandon, 1855. Shell smaller, aperture 

 with the folds very inconspicuous. Montpellier. 



Var. ventricosa Locard. Shell smaller, ventricose (Wester- 

 lund, Synops., 1897, p. 87). 



Var. montserratica Fagot. Differs from polyodon by the 

 more rounded perforation, the smaller aperture, the spire 

 slimmer and longer, as in Pupa secale, and by the feebler den- 

 ticulations, which are arranged almost in the same way. 

 Length 9, diam. 2% mm., 9% whorls. Monastery of Montser- 

 rat, Catalonia, Spain, on rocks (Fagot). 



Var. amelia 'Bgt./ Loc. Small, ovoid, rather short, stout 

 and ventricose, rapidly tapering above. Seven to eight quite 

 convex whorls, the suture marked. Aperture small, somewhat 

 rounded, a little contracted ; 3 to 4 superior folds, 2 columel- 

 lars; 4 palatals; 7-8 little peristomial folds. Peristome very 

 slightly expanded, rather thin. Shell corneous-red, sub- 

 opaque, but little shining, ornamented with quite well marked, 

 fine and regular striae. Length 61/2-7, diam. 2y 2 mm. Bare; 

 Amelie - les - Bains (Pyr.-Or.) ; Avignonnet (H. - Garonne) . 

 Pupa ameUa Brgt. in coll., Locard, Ann. Soc. de I'Agricult. 

 Lyon (7), iii, 1896, p. 198. 



Var. ringicula (Mich., Kuester). PL 44, fig. 4. Aperture 

 oblong, subangular at base, the little folds of the peristome 

 distinct and numerous. Length 3%, width 1% lines. Local- 

 ity: in the eastern Pyrenees (Kuester). 



Pupa ringicula Michaud in litt., KUESTER, Syst. Conch. 

 Cab., Pupa, 1849(1), p. 103, pi. 14, f. 9-12, quoted in 

 synonymy of P. polyodon var. minor. P. polyodon var. minor 

 ROSSM., Iconogr., pt. xi, 1842, p. 10, f. 727. Pupa polyodon 

 var. ringicula Michaud, WESTERLUND, Fauna, iii, 1887, p. 116. 



