CHONDRIN^E OF THE PYRENEAN CENTER. 49 



32. CHONDRINA MICRODON (West.). Shell rimate-perf orate, 

 ovate-conic, with the spire 2~y 2 times longer than the aperture, 

 brown, smooth, the apex obtuse. 6% strongly, beautifully 

 convex whorls, regularly increasing, the last rounded below, 

 ascending in front; suture deep, narrow. Aperture strongly 

 receding below, obliquely oblong, with one conic tooth deep 

 within and high up on the columella; peristome simple, nearly 

 unexpanded, only the columellar margin being dilated above ; 

 margins very little and almost equally arcuate, except that the 

 outer lip is strongly curved and protracted towards the colu- 

 mella above. Length 4, diam. 1% mm. (Pupa microdon WES- 

 TERLUND, Fauna, Pal. Reg. Binnenconch., iii, 1887, p. 104. 

 Modicella m., WEST., Synopsis, 1897, p. 100). 



Spain : Montserrat, prov. Barcelona. 



33. CHONDRINA BOETTGERIANA (Clessin). PL 5, fig. 3. 



Shell rimate, subfusiform, thin, brown, pellucid, finely cos- 

 tulate, the ribs narrow, regular; 10-11 convex whorls, slowly 

 and regularly increasing, separated by a moderately impressed 

 suture, the last somewhat compressed at base, about equalling 

 one-fifth the length. Aperture nearly quadrangular, toothless. 

 Peristome acute, a little reflected, the margins connected by a 

 scarcely perceptible parietal callous, the outer margin lightly 

 impressed. Length 6.5, diam. 1.5 mm. (Clessin). 



Spain: Jaen. 



Pupa boettgeriana CLESSIN, Malak. Blatter (n. F.), v, 1882, 

 p. 188, pi. 4, f. 4. 



Described from one specimen. From farther southwest 

 than other toothless species. 



34. CHONDRINA JUMILLENSIS ('Guirao,' Pfr.). PI. 5, figs. 6, 7. 

 Shell perforate, ovate-turrited, rather solid, obliquely 



wrinkle-striate, slightly glossy, purplish-brown. Spire con- 

 vex, slowly tapering, the apex rather acute; suture deep, 

 simple. Whorls 8, convex, the last scarcely forming one-third 

 of the length, slightly compressed around the punctiform per- 

 foration. Columella longitudinally folded within and trans- 

 versely two-toothed. Aperture slightly oblique, truncate- 

 oblong ; parietal wall having a little lamella at the right angle ; 

 peristome simple, slightly expanded, the right margin strongly 

 curved above, toothless, columellar margin widely dilated. 

 Length 8, diam. 3% mm., aperture 3 mm. long (Pfr.). 



