AURICULIDJE. 225 



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. 1. 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. 

 denticulate high up the Thames, I have been induced 

 to insert them. 



* OVATELLA. (Bivona.) 

 Pillar 3-5-plaited; mouth toothed; peristome slightly 



reflexed. Paludinal. 



85. 1. CONOVULUS denticulatus. Denticulated Coii- 

 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. Ear. 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 



