344 Mr. Jeffreys on the Testaceous Pneumonobranchous 



Helix pulchella. Miill. Verm. 2. p. 30. Drop. Hist, des 

 Moll, p.112. t.7.f. 30—32. 



paludosa. Da Costa Brit. Conch, p. 59. Mont. 



Test. Brit. p. 440. Maton ^ Rackett in Linn. 

 Trans. 8. p. 193. t. 5. /. 5. 

 a. epidermide laminosd induta. 



Helix costata. Mull. Verm. 2. p. 31. 



crenella. Mont. Test. Brit. p. 441. t. 13. /. 3. 



Turbo helicinus. Light/, in Phil. Trans. 76. t. 3. 

 /. 1-4. 

 Common in moist places under stones, in moss, and at 

 the roots of grass. 



29. Acuta. 



Animal supri\ nigrescenti-rufum, granulatumque ; subt\!is 



pallidius. Tentacula superiora longiora. 

 Testa solidior, granulato-scabra, carinata, rufo-maculata. 

 Anfractus 5, subtiis convexiusculi. Apertura trans- 

 verso-ovata : peristomio continue. Umbilicus patulus. 



Long. 0.3. — Diam. 0.65. 

 Helix lapicida. Linn. Syst. Nat. 1. p. 1241. 

 acuta. Da Costa Brit. Conch, p. 55. t. 4. y. 9- 



Not uncommon in the clefts of rocks, under stones, &c. 

 Somersetshire. 



I cannot account for the vulgar error which dictated to 

 Linnaeus the name oi lapicida ^or Stone-eroder,for this shell. 



Genus IV. BULIMUS. Bruguiere. 



Animal elongatum. Sustentaculum angustum, testam non aequi- 



parans. 

 Testa oblonga, anfractu ultimo majore. Apertura inaequalis, ad 



basin integra. Umbilicus semiclausus, perforatus. 



* Ovato- 



