AURICULIDiE. Ill 



Alexia, Gray, 1847, in Proc. Zool. Soc. xv. p. 179. 



March, Cat. Told. i. p. 38. 



H. and A. Adams in Proc. Zool. Soc. 1854, p. 32 ; Gen. rec. 

 Moll, ii. p. 241. 



Pfr. in Maldk. SI. i. 1854, p. 151 ; Hon. Auric, p. 144. 

 Phytia, Gray, 1821, in Lond. Med, Pepos. xv. p. 231. 

 Ovatella (subgenus of Conovulus), Gray, 1840, in Tart. Man. 



p. 225. 

 Turbo, sp., Walk. 



Voluta, sp., Mont., Mat,, Wood, &c. 

 Auricula, sp., Drap., Per., Lam., &c. 

 Jamiuia, sp., Srown. 

 Carycbium, sp., Per., Mich. 

 Ovatella, sp., Srown. 

 Acteon, sp., Flem. 

 Pytbia (part), Seek. 

 Melampus, sp., Stimps. 



Tbe animals ascribed to this genus are really terrestrial, as 

 Moquin-Tandon and others have ascertained. Except A. den- 

 ticulata, the shells of all the species are veiy similar in habit, 

 although the animals exist in countries remote from each other ; 

 but by an exact examination there will be found good characters 

 for distinguishing the several species. 



They may be divided into two sections : — 



A. Labium furnished with distinct teeth .... § 1. No. 1- 2 



B. Labrum callous, bearing sometimes a single 



indistinct tooth § 2. 3-12 



§ 1. Labrum distinctly toothed. 



1. Alexia denticulata. B.M. 



Shell imperforate, elliptically ovate, thin, pellucid, smooth, 

 shining, bora-coloured yellowish; spire exserted, conic, pointed; 

 suture bordered ; whorls seven, scarcely convex, the last as long 

 as the spire, attenuated at base ; aperture nearly perpendicular, 

 narrowly semiovate; parietal teeth three, the upper two minute, 

 nodiform ( the uppermost sometimes obsolete), the third com- 

 pressed, entering transversely ; columellar plait oblique, twisted ; 

 peristome simple, straight, sharp; right margin slightly arcuate, 

 furnished within with three to six more or less distinct teeth, 

 which are elongated inwards ; columellar margin scarcely di- 

 lated. Length 10, breadth 4 mill. 



Voluta denticulata, Mont. Test. Brit p. 234. pi. 20. f. 5. 

 Mat, and Pack, in Linn. Trans, viii. p. 130. 



