VELUTINA. 347 



breadth of the head ; on bulgings at their origins exter- 

 nally are the eyes. Proboscis retractile, mouth armed 

 with jaws and a denticulated tongue, armed with a single 

 series of broad, hooked, serrated central teeth flanked on 

 each side by a triple series of laterals, of which the two 

 outer rows are simple and even edged, and the inner ones 

 broad, hooked, and serrated. Mantle ample, thick, more 

 or less reflected on the shell all round. Foot large, obtusely 

 quadrate in front, rounded behind. Branchial plumes two. 

 Male organ hamate, reflected. 



This excellent genus was constituted in 1820 by Dr. 

 Fleming for the reception of the Helix Icemgata of Lin- 

 noeus. It was once fancied to be a fresh water tribe, but 

 this is a great error ; it is among the most strictly marine 

 of mollusks, occurring often far out at sea and at con- 

 siderable depths. 



V. LAEVIGATA, Linnreus (?) 



Pinkish, flesh-colour, not membranaceous. 

 Plate XCIX. fig. 4, 5, and (Animal) Plate O 0. fig. 7. 



HelU' Iceviijala, Linn. Syst. Nat, ed. 12, p. 1250, probably. — Pulteney, Hut- 

 chins, Hist. Dorset, p. 49. — Donov. Brit. Shells, vol. iii. 

 pi. 105. —Mont. Test. Brit. vol. ii. p. 382. — Maton and 

 Rack. Trans. Linn. Sac. vol. viii. p. 222. — Rack. Dorset 

 Catalog, p. 56, pi. 18, f. 9, — Turt. Conch. Diction, p. 69.— 

 Fleming, Encyclop. Edin. pi. 203, f. 14, 15. — Dillw. Recent 

 Shells, vol. ii. p. 971.— Wood, Index Testae, pi. 35, f. 183. 

 Bulla velutina, Muller, Zool. Danic. pi. 101, f. 1 to 4. 

 Helix Haliotoides, 0. Fabric. Fauna Greenland, p. 390. 

 Velutina capuloidea, Blainv. Manuel Malacol. pi. 42, f. 4. 



„ l<evigata, Fleming, Brit. Anira. p. 324 ; Treatise Moll. Anini. pi. 10, 

 f. 31. — Forbes, Malac. Monens. p. 29, animal.— Johnston, 

 Berwick. Club, vol. i. p. 275, with animal. — Brit. Marino 

 Conch, p. 1 53. — Sowerbv, Conch. Manual, f. 337. — Gould, 

 Invert. Massach. p. 240, f. 159. — Reeve, Conch. Systemat. 

 pL 147, f. 1, 2.— Dekav, New York Moll. p. 154, pi. 23, 

 f. 254. 



