528 WORMS. TESTACEA. 8¢. Helix. 
fanthina. Shell nearly imperforate, roundifh, obtufe, diaphanous and 
very brittle: aperture dilated behind, with an emar- 
ginate lip. 
Lifter, tab. 572, f. 24. Brown Famaic. tab. 49. f- 1. 
Sloane Jamaica, tab. Y. fig. 4. tab. $72. fig. 23. 
Column ag. 23. tab. 22. Purp. tab. 13. f. 2. 
Rumpf. muf. tab, 20. f 2, Gualt. teft. t. 64. O. 
Argenv. conch. tab. 16. S. Knorr Vergn. 2. 1. 30. f. 25 35 
Chemn. conch. 5; tab. 166. f: 1577, 1578. : 
Inhabits moít feas : about an inch broad and high. 
Shell violet with a fubtriangular aperture: the /za/ when alive 
fhines by night, and ftains the hand with a violetor purple die. 
Gigantea. Shell imperforate, roundith, folid, with a depreffed fpire.-- 
Inhabits———Scopol. del. Infub. p. 66. tab. 25. A. 
Shell very large, fmooth, white, within brownifh: pire yel- 
lowifh, with 6 contiguous whorls not ftriate, the firft bay 
within: /p margined. d 
*Vivipara, Shell imperforate, ventricofe, fubovate, jobtufe, brownifh: 
with dufky bands: aperture nearly orbicular. 
“Pennant Brit. Zool. w. tab. 84. fig. 132. 
Da Costa Brit. conch. tab. 5. fig.2. Lifter. t. 126. 
Lifter Anim, Ang. tab. 2. f. 18. — nat. Exerc. 2. t, 2. fa 5. MZ. 
Petrv, Gaz, tab. 99. f. 16. .— Argen. Zoom. tab, 8. f. 2. 
Savamm. Bibl. tab. g. f. 5—413. Gualt, teft, t. 5. Ac 
Frisch. Ins, 13. tab. X. Knorr Vergns 5. t. 170 f. 4. 
Seba Muf. 3. tab. 38. f. 12. tab. 39. f-33, 34» 
Martini Berl. Magax. 4. tab, 7. f. 4--9. 
Chemn. contb. 9, tab. 132. fig. 1182, 11837 
Inhabits ftagnant waters of Europe: 1i inch lotig. 
Shell thin, pellucid, glabrous, very finely ftriate longitudinally, 
when young covered with fine cryftalline briltles, generally 
barred, with a whitifh and blueifh throat, and 5 or 6 very 
convex whorls: viviparous. 
Fafciata. Shell ovate-ventricofe, white with 3 fhining red bands. 
Gzalt. teft. tab. 5. M. — Ginan. op. post. 2. t. 1. f. 6. 
Inhabits /taly: g—15 lines long; with 3 bands on the firft 
whorl and 2 on the next: /pire acute: avLorh $: throat 
blueifh white, 
Difimilis, Shell fubovate, pointed, yellowifh-white with a black lip. 
Schret. Eial. in conch. 2, tab. 4. f. 10. 
Inhabits Tranguebar. Shell pellucid, glabrous, with 6 whorls 
and a pellucid glofly yellowifh-brown lid. 
* Nemoralis 
