540 WORMS. TESTACEA. 81. Helix. 
*Auricu- Shell imperforate ovate gibbous, with a depreffion in the 
laria. middle of the lip: fpire acute and very fhort: aperture 
very much dilated. Lu 
Donovan's Brit. Shells. ii, tab. 61. fig. 1. 
Da Costa Brit. conch. tab. 6. fig. 16. 
Pennant. W. t, 86. f. 138. Liffer exerc. anat. t. 2. fe 3» 4e 
Lifter t. 123. f. 22. dim. Ang. t. 2. f. 23- M y 
Bonan recr. &F Muf. kirch, 3. fig. $4. 
Gualt. tef. tab. 5. F, G. Murray test. t. A. f. 4. 
Argenv. conch. t. 27. f. 7. t. 28. f. 22. oom. f. 8, f. 6. 
Born. Muf. Caf. Vind. te. 1. 16. f. 20. Dus 
Chem. conch. 9. t. 138. f. 1241, 1242. 
2. Schrat, Flufeonch. 1, 6. f. 7. t£. 7. f 11? 
. Inhabits ponds of Europe: 2—15 lines long. _ 
Shell whitith yellow cinereous or brownifh, rarely ribbed : whorls 
3—5, the firit very ventricofe, the lait fmall and forming a 
minute apex: /za/] white with cinereous dots and black eyes," 
?Levigata Shell with 2 whorls, the firít very ventricofe, the other very 
minute and placed laterally. 
Pennant Brit. Zool. iv. p. 14. tab. 86. fig. 139. 
Inhabits ponds of Europe. Shell pale red, pellucid. 
Balbiz. Shell imperforate ovate pointed, with elevated wrinkles: 
: ; . aperture ovate dilated. 
Inhabits fhores of the Baltic. 
Shell pellucid, with 4 whorls: /nai/ black, with 2 tentacula. 
Neritoidea. Shell imperforate convex and longitudinally Miiate, with an 
umbilical cleft: aperture roundith. 
Inhabits———S/z// livid, with above 40 ftriz. 
Perfpicua.; Shell imperforate convex ovate, without lip; aperture ex- 
tending to the tip. . 
Inhabits the Mediterranean; between a Bulla and Helix. 
Shel! milk-white tranfparent and very brittle. 
Haliotoidea Shell imperforate depreffed, with waved ftrie : aperture 
, oval, open all the way down. 
Adans feneg. Ve tab, 2° fig. 2. Rumpf. muf. tab. 4. R, 
Mull. Zool. Dan. 3. t. 101. f. Verde 
Petiv. Gaz. t. V2. f. 44^. Gualt. teft. tab. 69. F. 
Bonan. Muf. Kirch. 5. fig» 404+ 
Argenv. conch. tab. 5. C. Klein. oftr. t..7: fe YA4« 
Knorr Vergn. 4. ty 17-fr 5. & 6. t. 39.7 S. 
Martini conch. V. 1. V6. fe 15 t--154- 
2. Chen. conch. 10, te 165. f. 1598, 1599. 
Inhabits 
