WORMS. TESTACEA. 74. Bulla. 353 



Martini Berh magaz 4. tab, 1 1 , fig, 61. 



Schrcet.flufconch. tab. 6, Jig, 16. a, b. 



Chemn. conch. 9. tab. 103, Jig. 877— -880. 



Inhabits the fhores of the Danube, and is found in many parts of 

 Europe in lakes and rivers: about £ of an inch long. 



Shell thin, brittle, polifhed, yellowifh or white : Jpire with 3 

 whorls, the laft inflated : inhabitant white or grey with a jag- 

 ged membrane. 



fcHypnorum, Shell ovate, pellucid, with a prominent contrary fpire; the 

 aperture ovate-lanceolate. 

 Chemn. conch. 9. tab. 1 63, fig, 882,883. a, b. 

 Inhabits Europe, among wet mofs ; probably a variety of the laft« 



Ynrritai Shell poliihed, with a pointed fpire: aperture Oblong. 



Mull. <verm.Jlu-v. et terr. 2./9169. n, 345. 



Inhabits Northern Europe, in ditches and wet meadows. 



Shell 1--6 lines long,- ovate-oblong, the whorls turning contrary^ 

 pellucid, fulvous of 'black : _ fpire with 3.-6 fmooth whorls: 

 inhabitant deep black, the tip of the feelers only white. 



Celatinofa, Shelf very brittle with a deprefTed contrary fpire : aperture 

 ending in a beak. 

 Inhabits rivers of Denmark 2| lines long. 

 Shell ventricofe* fulvous, diaphanous, very brittle and light as a 

 feather: Jpire bioad, the whorls obfolete except the lail; in- 

 habitant grey, thrice as large as the fhell, which it completely 

 involves in a thick gelatinous membrane. 



Terebellum. Shell cylindrical, with a fubulate fpire truncate at the bafe* 



Lister, tab, 736. Rumpf, muf. tab, 30, S. % 



Peti<v< Amb, aq. tab, 1 3, fig. 24. 

 Bonan recr, & Muf, Kirch, i^fig* S7* 

 Gualt, tejl. tab. 2 3, O. Leffer. teji.ftg, 33. 

 Argen<v. conch, tab. 1 1, fig. G, 

 Klein ostr, tab. 2, fig. 48, 49. 

 MuJ. Gotfwald, tab. 43, fig. 5 3, a, b. 

 Knorr Fergn. 2. tab. 4, jig. 4, 5. 

 Martini conch. 2. tab $*ifi 568,569, 

 2. Lifter; tab, j$j. Pet. Amb. tab, 13, f. 24. 

 Chemn. conch. 10. /#£. 146, fig, 1362, 1363. 

 Inhabits the Indian Ocean, and very much refembles a Gonus. 

 5^// narrow, above 2 inches long, generally tranfverfely ftnatej 



white with ufually pale yellow fpots, dots or clouds, rarely 



with 4 bands. 



fypr*a % Shell ovate; the fpire indiftincl: and a little prominent at 

 the tip: aperture more dilated behind, the pillar 

 twitted. 



VOL. IV,— Y y Knon 



