122 AURICULIDJE. 



with the genus Carychium, which do not even belong to the 

 same family. 



The known species may be divided into the following 

 sections : — 



A. Columellar plait distinct. 



a. Right margin toothed § 1. No. 1- 4 



b. Right margin without teeth §2. -5-6 



B. Columellar plait obsolete § 3. - 7-12 



§ 1. Columellar plait distinct ; right margin of the peristome 



toothed. 

 1. Carychium minimum. B.M. 



Shell subrimate, ovate-oblong, thin, faintly striate, yellowish- 

 glassy ; spire elongate, rather blunt ; suture deep, somewhat 

 marg'inate; whorls five to five and a half, convex, the last 

 forming two-fifths of the total length, more ventricose ; aper- 

 ture oblique, ovate-oblong; body of the penultimate whorl fur- 

 nished with a single compressed'plait ; columellar plait distinct, 

 dentiform ; peristome slightly lipped, with the margins rather 

 convergent, united by a callus ; right margin much curved above, 

 bearing within a single callous tooth on its middle ; columellar 

 margin slightly spreading. Length 2, breadth nearly 1 mill. 

 Carychium minimum, Mull. Hist. Verm. ii. p. 125. n. 321. 

 Leach, Zool. Misc. i. p. 84. 

 Ferussac, Prodr. p. 100. n. 2. 



C. Pft'iffi-r, Naturgesch. i. p. G9. t. 1. f. 5, G. (anim.) t. 3. 

 f. 40, 41. 



Michaud, Compl. a Draparmaud, p. 74. 



Jeffreys in Linn. Trans, xvi. p. 365. 



Cristof. and Jan, Catal. p. 6. 



Beck,' Ltd. p. 103. n. 1. 



Potiez et Mich. Gal. Douai, i. p. 200. 



Rossm. Leon. x. p. 36. t. 49. f. 660. 



Gray in Tart. Man. ed. nov. p. 221. pi. 7. f. 77. (p. 219. 

 f. 1, 2. anim.). 



Sow.jun. Conch. Man. p. 99. f. 301. 



Kust. Auric, p. 4. t. 1. f. 8-10. 



F. Schmidt, Krain Conch, p. 15. 



Parr. Oesterr. Conch, p. 4. 



Joba, Coq. Depart. Moselle, p. 10. 



Graells, Catal. Moll. Espana, p. 10. 



Strobel, Malac. Ungher. p. 32. 



Dupuy, Moll France, p. 427. pi. 21. f. 1. 



Be Betta, Malac. Valle di Non, p. 130. 



