72 TRUNCATELLINA. 



lip somewhat reflected. There is a single fold in the middle 

 of the parietal margin, an oblique, blunted brown, one on the 

 columellar margin, the palatal fold lengthened, whitish, form- 

 ing a groove externally ; all of them deeply placed. Length 2, 

 diam. % mm. (Bens.). 



Mediterranean region, Algeria, southern France, Switzer- 

 land and the Tyrol, Italy and Sicily, Caucasus, Persia. 



Pupa rivierana BENSON, Ann. Mag. N. H. (2), xiii, 1854, p. 

 97 ("Riviera regione Pedemontana, ad basin collium prope 

 Nizza maritimam sub lapide." Also found by Mr. John Paget 

 at Montpellier). 



Pupa strobeli GREDLER, Verh. zool.-bot, Vereins in Wien, vi, 

 1856, p. 114, and of many subsequent authors. Isthmia- stro- 

 leli GREDL., Rosen, Nachrbl. d. Mai. Ges., 1892, p. 126 (Ger- 

 mab and Chorossan, 10 kilom. w. from Schamhala, Persia). 

 Pupa (Isthmia) strobeli Gredl., BOETTGER, Jahrb. d. Mai. 

 Ges., vi, p. 405 (Caucasus, etc.) ; Nachrbl., xi, 1877, p. 66 

 (distribution). KOBELT, Iconographie (2), viii, p. 83, pi. 234, 

 f. 1514. --Pupa strobeli var. scharffi BOETTGER, Nachrbl. d. 

 Mai. Ges., 1879, p. 51. SCHARFF, Journ. of Conch., ii, 1879, 

 p. 291. 



Vertigo muscorum var. triplicata BOURGUIGNAT, Malac. de 

 1'Algerie, ii, 1864, p. 99, pi. 6, f. 31-32 (Bone; around Al- 

 giers). --Pupa mystica Pils., STERKI, Nachrbl., xxi, 1889, p. 

 119, as synonym of strobeli. 



Helix zanellia Testa, BENOIT, 111. sist., crit. Test, estramar. 

 Sicil. (1858?), p. 195, pi. 5, f. 10; cf. REINHARDT, Jahrb. d. 

 Mai. Ges., 1877, p. 277. 



Generally distributed in the "olive zone," though extend- 

 ing beyond it in Switzerland and eastward ; for a long time 

 confused with T. cylindrica, but readily known by the teeth, 

 of \vhich the palatal tubercle is visible from in front, not 

 concealed behind the columella as it is in T. claustralis. 

 French specimens measure : 



Length 2, diam. 0.9 mm. ; 6% whorls. 



Length 1.74, diam. 0.83 mm. ; 614 whorls. 



Length 1.7, diam. 0.8 mm. ; 6 whorls. 



