178 PHYLLOBRANCHIA. TURBONIDZ. 
The mouth of the animal is cylindric and notched ; the tenta- 
cles two, elongated, acuminated, bearing at their base externally 
the eyes, which are round and sessile ; the mantle is very much 
dilated, so as to cover the shell almost entirely ; the foot is 
broad, shorter than the shell. 
Synopsis Specierum. 
1. glaucina. Testa glauci; anfractibus superioribus glauco in- 
tensé strigatis. 
2. Lamarckiana. Testa fuscescente, nigro-fusco aut nigri- 
cante-pallido, spiraliter maculata. 
3. Browmana. Testa semipellucida, czerulescente-alba; an- 
fractibus striolis transversis, curvatis sculptis. 
1. NATICA GLAUCINA. 
N. testa glauca, anfractibus superioribus glauco intensé strigatis. 
Nerita glaucina, List. Anim. Ang. t. i. f. 19; Conch. eececlxxxv. 
£45; Petw. Gaz. t. xxxvi. £911 3 Gualé? Test ee 
f. 6; Mills Swam. 183; Favanne, Conch. t. x. f. K, L; 
Regenf. Conch. 1.t. 11. f. 34; Linn. It. Westgoth. 169-199. 
t.v.f.4; Faun. Suec.2169; Syst. Nat.xu. 1232. 607; Gmel. 
Syst. Nat. 3588 ; Penn. Brit. Zool. iv. 140. t. Ixxxi. f. 109 ; 
Da Costa, Brit. Conch. 98. t. vi. f. 1; Chem. Conch. v. 
t. elxxxy. f, 1852. 1. ad’8. ef f. 1854. a. cd d. ef Pale ee 
a.adg.; Pult. Cat. Dorset. 45.t. xvu. f. 1. e¢ t. xix. f. 2, 3; 
Donov. Brit. Shells, t. xxxiu. f. 1, 2; Mont. Test. Brit. 301; 
M.& R.Trans. Linn. Soc. vil. 158; Flem. Edinb. Encycl.vii. 
75; Dill. Desc. Cat. 782; Turt. Conch. Dict. 124. sp. 2. 
Animal. Pes, operculum, pallium et tentacula flavido-testacea. 
Habitat in maris Europe littoris arenosis vulgatissimé. Alt. 
14 une. 
Shell glaucous, with the upper whorls deeply striped with 
the same colour. Height one inch and a half. 
The foot, operculum, mantle and tentacles yellow-testaceous. 
Inhabits the sandy shore of the European seas, and is very 
common. 
