AURICULID^. 2*25 



Mr. Lowe {Zool. Journ iv.280.) at one time thought 

 that the animal might be ptenobranchous, but he has 

 since seen reason to doubt this conclusion ; and the 

 question has been settled by Mr. Berkeley's admirable 

 observations and figures of the animal {Zool. Journ. 

 v. 429. t. 19. f. 3.). 



On account of the marine or semimarine habit of 

 most of the species of this genus, they were not noticed 

 by Dr. Turton in the first edition of this Manual ; 

 but as they are the only British Pneumonobranchiata 

 which inhabit such places, and as I have found C. 

 denticulata high up the Thames, I have been induced 

 to insert them. 



* Ovatella. (Bivona.) 

 Pillar S-5-plaited ; mouth toothed ; peristome slightly 



rejlexed. Paludinal. 

 85. 1. Conovulus denticulatus. Denticulated Con- 

 ovulus. (t. f. 144.) Shell oblong, brittle, smooth, 

 brown or purplish ; spire conical ; mouth ob- 

 long, rather thickened; pillar three or five- 

 plaited, (p. 219. f. 4, 5.) 

 Turbo bidentatus. Walker, Test. Min. Par. f. 50. 



and 53. 

 Voluta denticulata. Mont. Test. Brit. 234. t. 20. 

 f. 5.; Berkeley, Zool. Journ. v. t. 19. f. 3. Animal. 

 Voluta ringens. Turton, Conch. Diet. 



reflexa. Turton, Conch. Diet. 



Auricula myosotis. Jeffreys, Linn. Trans, xvi. 368. ; 



not Drap. 

 Acteon denticulata. Fleming, B. A. 

 Auricula personata. Desh. Lam. ed. 2. viii. 332. 

 Carychium personatum. Mich. Compl. 73. t. 15, 

 f. 42, 43. 



l 5 



