340 Mr. Jeffreys on the Testaceous Pneumonobranchous 



21. NiTIDULA. 



Animal griseo-maculatum, pellucidum. Sustentaculum al- 

 bescens. 



Testa depressior, nitida, glabra, cereo-lutescens, subtus 

 albida. Anfr actus vix 5, convexiusculi. Apertura 

 magna, subovata : peristomio simplici. Umbilicus plus- 

 qu^m patens. 



Long. 0.2. — Diam. 0.4. 



Helix cellaria. Miill.Verm.2. p.2Sl Gmel.Syst.Nat.l. 

 p, 3634. Dillw. Cat. 2. p. 193. 



nitidula. Drop. Hist, des Moll. p. 117- 



fi. minor, albida, diaphana, subcarinata ; anfractibus sensim 

 decrescentibus. 

 Helix nitidula, /3. Drop. Hist, des Moll. p. 117- t. 8. 



/. 21, 22. 

 nitidosa. Fir. Tabl. des Anim. Moll. p. 41. 



Not uncommon under stones &c. in sheltered places. 

 The variety is a very pretty shell, and approaches in form 

 to the Helix rufa {Helicophanta, Ferussac) of Drapar- 

 naud. 



22. LuciDA. 



Animal caerulescenti-griseum. Sustentaculum albidum, pel- 

 lucidum, elongatum. Tentacula flexilia. 



Testa depressa, pellucida, nitidissima, testacei coloris ; sub- 

 tiis lactea. Anfractus 5 — 6, planiusculi. Apertura 

 magna, oblique lunata, emarginata. Umbilicus patulus, 

 sinu profundo. 



Long. 0.275. — Diam. 0.55. 



Helix lucida. Mont. Test. Brit. p. 425. t. 23. /. 4. 



Helix 



