266 MOLLUSCA. PULMONIFERA. Bulimus. 



Buccinura exiguum, quinque anfractum, mucrone acuto, List. An. Ang. 

 122 — Helix lubrica, Mull. Verm. ii. 104. Mont. Test. Brit. 390.— 

 Bui. lub. Drap. Moll. 75.—- In moist woods, common. 



Lenth |th inch ; breadth one-third of its length ; whorls five or six, near- 

 ly smooth. Mouth a little oblique, margin white, or with a rosy tinge. 



84. B. tuberculatus. — Mouth with a single tubercle on the 

 body-whorl, near the outer angle. 



Turton, Zool. Journ. No. vii. 363. t xiii, f. 4, — Pershore, Worcester- 

 shire. 



Length J an inch ; breadth j^ths. Shell oval, oblong, with six whorls, 

 rather flat, of a whitish colour ; the lower half of the body-whorl, as well as 

 the slightly reflected peristome, milk-white ; a small pillar- cavity. 



* Natio-alized Species. 



1. B. Goodallii. — " A subperforated, turrited, pellucid, pale, 

 corneous or almost white shell, having from six to seven volu- 

 tions, and an ovate aperture. 11 



" Helix Goodalli," Miller, Ann. PhiL xix. 381 — Pine-beds, Bristol. 

 Length upwards of -, 3 5 ths of an inch; the whorls rather flat, sometimes 

 eight in number ; separating line distinct ; finely striated across by waved 

 lines of growth. This is the Cochlicella clavulus of Ferrussac We are in- 

 debted to Mr Miller for publishing a notice of this curious species. Mr 

 Thomas Drummond, in a letter now before me, says, " The Helix Goodallii 

 was first pointed out by me in 1810, when I was in the habit of feeding 

 them, and when I wanted a supply, I merely placed a flat board upon tbe 

 surface of the tan, and left two or three small worms beneath it (dead ones 

 of course), and I never saw it fail of being covered with them in a few days." 



2. B. dccollatus. — Shell subcylindrical, truncated at the apex. 



Buccinum album clavicula productiore fere abrupta, List. Conch, t. xvii. 

 f. 12 Bui. decoll. Drap. Moll. 76. 



Dr Turton gives the following notice respecting this species : " Bulimus 

 decollatus was observed to breed in great abundance, for many successive 

 years, in the green-house at Watton, in the south of Devon, the seat of H. 

 Studdy, Esq., lodged in the earth, under the wood-work, whence they wan- 

 dered abroad in the summer. This wood-work and the earth were removed, 

 and replaced with stone, by which the colony was lost ; and all that were 



Preserved we owe to the care of Mrs Griffiths and Miss Hill." — Zool. Journ. 

 fo. viii. 565. 



EXTINCT SPECIES. 



1. B. ellipticus. — Elliptical, elongated, rather obtuse, longitudinally ribbed ; 

 ribs numerous, very small, straight ; aperture small, twice as long as wide, 



upon the left side. — Sower. Min. t. 337 Fresh-water Formation, Isle of 



Wight 



2, B. costillatus Ovate, rather acute, longitudinally costated ; costa? small, 



numerous; aperture elongated, acute above. — Sower. Min. Conch, t. 366. — 

 Fresh-water Formation, Isle of Wight. 



3 



