18 ORCULA. 



conic or dome-shaped summit; very pale brown (or often 

 whitish ) . Surface somewhat glossy, having numerous narrow 

 cuticular riblets, more or less widely spaced. The whorls are 

 slightly convex, the last flattened laterally, the suture ascend- 

 ing strongly to the aperture. The aperture has a broadly re- 

 flected white peristome, well thickened on the face and within, 

 causing a narrow, opaque buff streak behind the outer lip. 

 The parietal lamella emerges very nearly to the edge of the 

 very thin parietal callus, and penetrates more than a whorl 

 inward. It becomes more or less lower at the back, enlarging 

 again towards its inner end. There is a small nodular angular 

 lamella, slightly separated from the termination of the outer 

 lip. Columellar lamella? two, immersed, the lower one 

 stronger, upper weak and more immersed (sometimes obso- 

 lete or not visible in a front view). They penetrate slightly 

 more than one whorl, and within the back are subequal, or 

 the lower a little larger. 



Length 5, diam. 2.3 mm.; 8% whorls. 



Length 4.2, diam. 2.3 mm. ; iy 2 whorls. 



Middle and southern Europe, nearer Asia; from France to 

 Asia Minor, Armenia and the Caucasus region, east to Talysch 

 and northern Persia. Type loc, environs of Paris. 



Bulimus doliolum Bruguiere, Encyclopedic Methodique, i, 

 1792, p. 351. — Pupa doliolum Draparnaud, Hist. Moll. Fr., p. 

 62. — Rossmaessler, Iconogr., i, p. 5, p. 16, f. 328, 329. — Ppr., 

 Monogr., ii, 326; iii, 540; iv, 667; vi, 305; viii, 368 (see for 

 older references). — Moquin-Tandon, Moll. Fr., p. 385, pi. 27, 

 f. 32-34. — Westerlund & Blanc, Apercu Fauna Malac. 

 Grece, 1879, p. 101 (Grecian records). — Boettger, Jahrb. d. 

 m. Ges., vi, 1879, p. 32 (Caucasian forms) ; Jahrb. d. m. Ges., 

 viii, 1881, p. 229 (Borsham, Schambobel, coast between 

 Suchum and Poti). — Paulucci, Bull. Soc. Malac. Ital., vii, 

 119, 1881, with forma curta, p. 120 (dist. in Italy). — 0. dolio- 

 lum Vohland, Sitzungsber. u. Abh. Nat. Ges. Isis, in Dresden, 

 1911, p. 126 (distribution in Germany). — Boettger, Ber. 

 Senckenb. Ges., 1888-9, 23 (Caucasian references) ; Zoolo- 

 gischer Jahrb., iv, 1889, p. 958 (Persia). 



Helix coronata Studer, in Coxe's Travels in Switzerland, 



