533 WORMS. TESTACEA. 81. Helix, 



Shell very thin fragile, yellow, with 2 or 3 whorls and repand 

 rounded aperture: /nail white with cinereous dots and fur- 

 nilhed with a gelatinous membrane covering the whole fhell. 



• Putrisi Shell imperforate obtufe ovate yellow, with 3 whorls: 

 aperture ovate. 

 Pennant Brit. Zool. iv. tab. 86. fig. 137. 

 Lister t. 123.^. 23. An. angl. t. z.f. 24. 

 Gualt. test. tab. 5. H, Klein oftr. t. $. f. 70. 

 ■>, Argenv, conch, t. 27. n. 6. t t z8.f. 3. 

 ^ Chemn. conch, 9. t, 135./. 1248. 



Inhabits Europe in ponds: 1--8 lines long. 

 Shell very pellucid thin fragile and membranaceous, with fine 

 crowded ftris within and without : the firft whorl very large, 

 , the 2 others minute : aperture not lipped : /nail deep black, 



with 4 tentacula. 



Acuta, Shell conic-pointed, white with ; a red baud: aperture 

 toothlefs. 

 Lifier tab, ig./ig, 14. Gualt. teji, tab. 4. N. 

 Chemn. conch, 9. t. \^\./. 1224. n. 1,2. 



Inhabits Italy : 4 lines long. Shell with 7 whorls, and fome- 

 times with z red bands on the larger whorl .- aperture ovate. 



Papilla. Shell conic perforated, with rugged flri#: aperture tranf- 



verfe, lip reflected. 

 Chemn , fo»c£. 9, tab. \zi%fig. 1 05 3, 1054. 

 Inhabits— —1 of lines wide. Shell varied with white and reddifti ' 



brown wrinkles-: whorls about 6, and convex: aperture ovate- 



with a thick white lip. 



Mitmta, gh e i] fubcylmdrieal, with an oval toothlefs aperture. 



Inhabits Greece ; not a line long ; refembles Turbo mufcorum,' 

 but is fhorter, thrice as narrow and pointed: whorls 5. 



Detrita, Shell conic, white with tranfverfe rufous lines : aperture 

 ovate. 

 Gualt. left, tab, y. N. Seba muf 3. tab. Z9'fg» 37» 

 Chemn. conch 9. tab. 134.^. 1225 a— d. 



Inhabits Saxony. Shell Sf lines long, polifhed and obfoletely 

 ftreaked, with 6 whorls ; the lip a little reflected at the pillar. 



Fentricofa, Shell conic pale ftriate, with a toothlefs aperture. 



Inhabits Greece, 2 lines long: refembles H. trochus, but is more 

 ventricofe : whorls 7, the 4 outmoft very nearly of equal 

 width. 



•Gbfcura- 





