276 ABIDA. 



peristome is thicker, wider, as though bloated, with very blunt 

 edges. Algeria : Chabet-Beinan, Oued-Staoueli (Bourguignat) .. 



6. ABIDA PARTIOTI (Moq.). PL 43, figs. 7, 8, 9. 



The shell is minutely perforate, obliquely rimate, cylindric 

 below, the upper half or more slowly tapering to an obtuse 

 apex; between tawny and cinnamon-brown; evenly and min- 

 utely rib-striate. Whorls slightly convex, the last whorl hav- 

 ing a short, horizontal, strongly projecting basal carwa, and a 

 shallow spiral impression on the last half, over the upper 

 palatal plica; suture suddenly ascending at the end. Aper- 

 ture semioval. Angular lamella thickened and joining the 

 outer lip, long, penetrating deeply to the spiral lamella but 

 not quite joining it ; spiral lamella short and in a dorsal posi- 

 tion (see fig. 7). Parietal lamella rather deeply immersed, 

 not high, running to the dorsal side. The columella is strong, 

 subhorizontal, and a half whorl long; subcolumellar smaller, 

 more oblique within; both continue nearly to the peristome, 

 the lower more strongly. Three long plicae emerge to the 

 peristome, the upper palatal running into the callous defining 

 the sinulus. In the middle of the back the plicae are empha- 

 sized, forming short teeth, a short suprapalatal fold standing 

 above them. The peristome is expanded, well thickened within 

 and on the face. The parietal callous is crenulated by the 

 striae, and usually hast some denticles, those at the two ends 

 larger and more constant. Length 6.7, diam. 2.3 mm.; 10 

 whorls. 



"Length 6 to 8, diam. 1.8 to 2 mm." (Moq.). 



Pyrenees: Valley of Luz, near the Gontaut bridge (Par- 

 tiot) ; bottom of the cirque de Gavarnie (Saint-Simon). 



Pupa partioti Moquin-Tandon, in SAINT-SIMON, Miscellanees 

 Malacologiques, i, 1848, p. 28. Moll. France, p. 369, pi. 26, f. 

 30-33. KUESTEB, Conchyl. Cab., Pupa, p. 114, pi. 15, f . 21-25. 

 PFR., Monogr., iii, p. 546. DTJPUY, Hist. Moll. Fr., p. 383, 

 pi. 19, f. 1. WESTERLUND, Fauna, 1887, p. 109. KOBELT, 

 Iconogr. n. F., ix, 1902, p. 71, pi. 262, f. 1697. 



Distinguished by the basal keel, the long angular lamella, 

 etc. It is said to be very local in distribution. Examples from 

 Luz are illustrated. 



