353 
WORMS. TESTACEA. 74. Bulla. 
■aw. 
m. 
Martini Berl. magaz 4- 6l. 
Schrcet.fiufcunch. tab.bt fig' i6. a,b, 
Chtmn. conch. Q. tab- to '^, Jig. 877—880. „ . if 
Inhabits the fhores of the Danube, and is found in many parts of 
Europe in lakes and rivers : about J of an inch long. 
Shell thin, brittle, polilhed, yellowilh or white : y/>r« with 3 
whorls, the laft inflated : inhabitant white or grey with a jag- 
ged membrane. 
Shell ovate, pellucid, with a prominent contrary fpire ; the 
aperture ovate-lanceolate. 
Chemn, conch, t). tab. 103, fig. 882,883. a, b. _ /■ r 1 n. 
Inhabits Europe, among wet mofs ; probably a variety of the laft. 
Shell polilhed, with a pointed fpire: aperture oblong. 
Mall. •verm. fluv. et terr. z. y.ibp. ». 345* 
Inhabits Northern Europe, in ditcheS and wet meadows. 
Shell 1-6 lines long, oVate-oblong, the whorls turning contrary, 
pellucid, fulvous or black; fpire with 3.-6 fmooth whorls: 
inhabitant deep black, the tip of the feelers only white. 
Shell very brittle with a depreffed contrary fpire : aperture 
ending in a beak. 
Inhabits rivers of Denmark, 2^ lines long. , , 
Shell ventricOfc, fulvous, diaphanous, very brittle and light as a 
feather: /iS'jVr broad, the whorls obfolete except the laft j rw- 
habitant grey, thrice as large as the fhell, which it completely 
involves in a thick gelatinous membrane. 
Shell cylindrical, with a fubulate fpire truncate at the bafe. 
Lister, tab. 736. Rumpf. muf. tab. 30, S. 
Petiv. Amb. cup. tab. i 3, fig. 24* 
Bonan recr, Muf. K:rch, 'i-fig' 57 * 
Gualt. teft. tab. zt, O. Leffer teji.ftg. 35. 
Argent', conch, tab, 1 1 , fig. G, 
K/ein estr, tab. 2 , fig. 4^1 49' 
Mi^. Gottnvald. tab. 43 ) fig' 53 > 
Knorr Vetgn. 2. tab. 4, jig. 4 ) S' 
Martini conch, z. tab ’y^tf 568,569. 
2. Lister, tab. 737. Pet. Amb. tab. 13, f. 24. 
Chenm. conch. lO. tab. \\b, fig. 1362, *363* 
Inhabits the Indian Ocean, and very much refembles a Conus. 
Shell narrow, above 2 inches long, generally tranfverfely ftriate, 
white with ufually pale yellow fpots, dots or clouds, rarely 
with 4 bands. 
Shell ovate ; the fpire indiftin<a and a little prominent at 
the tip: aperture more dilated behind, the pillar 
twilled* 
VOI.. IV.— V y 
Knorr 
