WORMS. TEST ACEA. 81. Helix. 537 
Inhabits ftill waters of Europe, and is probably only the laft in 
a different ftage of growth. Shell about 11 lines long, white 
or golden fometimes barred with white: fire acute, with 
5—7 whorls feparated by a fmall line, the firft a little ven- 
tricofe: 4p not margined. 
Glabra. — Shell cylindrical pointed horny, with an ovate aperture. 
Sbrat. Erdconch. tab. 7. fig. 15. 
Inhabits moift meadows of Denmark: 42 lines long. 
Shell pellucid, with about 8 round whorls, the firft with a 
kidney-fhaped black traníparent belt: /zaz/ black with whitifh 
horns. 
* Palufriss Shell óblong pointed brown, with an ovate aperture. 
Pennant Brit. Zool. iv. p. 139. tab. 86. fig. 136. B. 
Lister An. angl. 2. tab. 22. « Gualt. test. tab. 5. E. 
Martini Berl, Magaz. 4. t 9. f. 37. 
Schrat flufconch. tab. 7. fig. 9, 10. 
2. Schrat flufconcb. tab, 7. fig. 7. 
3. Schret flufconch. tab. 7. fig. 11. . 
Inhabits boggy meadows of Europe; refermbles H, ftagnalis, but 
the fnail is cinereous with whitifh dots, and the fhell is 
fomewhat ftronger and not fo much pointed at the end: fhel/ 
2—9 lines long, with very fine crowded traníverfe and fpiral 
ftriz, brown with fometimes a red band or two at the aperture: 
Zip reflected white: whorls 5-6. 
Truncatula, Shel} ovate-oblong, the whorls truncate upwards: aper- 
_ ture ovate. 
Schrat. flufconch, tab, 7. figs 13. 
Inhabits Greece: 13—5 lines long. Shell black fubpellucid 
with 5 whorls amd incumbent {qualid lip. 
Peregra. Shell horny fubconic, with an acute projection: aperture 
ovate. 
Gualt, test. tab. 5. sig. e e. 
Chemn conch; QUE LI36, fo 1244. 2, 1, 2. 
' Inhabits ftagnant waters of Denmark: 2—8 lines long. 
Sell whitith pellucid or black opake: differs from H. auricula 
in not being ventricofe and in having the whorls rather ab- 
rupt and. more elongated ; and from H. palufiris in being 
fomewhat conic. 
Glutinofa. Shell ventricofe diaphanous, with an obtufe projeétion: 
" aperture wide. 
Inhabits Denmark, chiefly on the leaves of the Nymphza lutea: 
a12—4 lines long, d 
, VOL. IV. — 2 Y SLE 
