THE YOUNG NATURALIST. 



311 



ing, about half an inch across, with rather 

 large umbilicus, it is white, or tinged with 

 buff, with brown bands, sometimes inter- 

 rupted ; lip with white rib within. It is a 

 local species, found on sand banks on the 

 coast (this shell is called Caperata by some 

 conchologists.) 



Ericetorum. —This is a much flatter 

 shell than any yet described in this genus, 

 the spire is very slightly raised, the whorls 

 j do not increase rapidly in size, but are coiled 

 around each other with a very slight descent, 

 leaving a wide umbilicus, the aperture is 

 almost circular ; the color is white, tinged 

 with buff, and encircled with bands of light 

 brown. It is common on heaths, particularly 

 near the sea. 



Obvohlta. --This shell has the spire 

 sunk below the outer whorls, it is thus very 

 Hat, and the umbilicus is very open, the 

 aperture is squarish with a nipped-in ap- 

 pearance, the color is brown. It is a rare 

 species, found among moss at the roots of 

 trees. 



Lapicida. — A flat lens shaped shell, 

 rounded both above and below, and sharp at 

 the edge, the spire is slightly raised, the 

 umbilicus large and open, the lip is con- 

 tinuous round the aperture, the color is 

 brown, lip white. It is found in the south 

 and central portion of Scotland, in fissures of 

 rocks, and in woods. * 



Rufescens- — This shell is moderately 

 Hat, the spire a little raised, umbilicus 

 moderate size, lip with a white rib within, it 

 is reddish in color, sometimes more inclined 

 to yellow, with an indistinct band around it. 

 It is found about hedges and gardens in the 

 South and Central parts of this country. 



Hispida- — A rather smaller shell than the 

 last, of similar form, of a horny color, with a 

 faint band, closely wrinkled or striated, a 

 white rib within the lip ; the epidermis is 

 covered with fine hairs or down. It is 

 common under stones, fallen leaves, &c. 



►Sericea. — Rather more rounded than the 

 last named, color pale, whitish, and covered 



with silky hair. It is a local species, not 

 common, and is found under stones, Sec. 



Revelata. — This is also a hairy shell ; it 

 resembles the last in form, but is rather 

 smaller ; it has a very small umbilicus, and 

 is of a greenish color. It has only been found 

 in the South West of England, among grass, 

 &c. 



Fusca. — Has a depressed shell, rather 

 larger than the last, slightly wrinkled, with 

 very minute umbilicus ; it is transparent, and 

 of a brownish color. It is found nearly 

 throughout the country, among bushes and 

 brambles. 



Pulva. — This shell is very small, measur- 

 ing only a quarter of an inch across ; the 

 spire is moderately raised and conical, 

 umbilicus extremely small ; it is thin, smooth, 

 and glossy, color fulvus. It is found under 

 stones, moss, &c. 



Lamellata — The shell of this species is 

 still smaller, it is round, with very small 

 umbilicus, horny and regularly ribbed. It is 

 found in the woods in the North of Britain. 

 Aculeata- — This shell is also very 

 j minute ; it is round with an umbilicus, the 

 j whorls are surmounted with a scries of horny 

 j points. It is found in damp situations, under 

 stones, moss, &c. 



Pulchella — Another minute species, with 

 a flat, white shell, spire very slightly raised, 

 aperture round, umbilicus rather large. It 

 is found under stones, or in crevices, generally 

 in damp places, 

 i Rotuildata- — A flat shell about the same 

 ; size as Fulva ; it has a large umbilicus, whorls 

 \ rounded, wrinkled, yellowish, horny, often 

 with darker spots. It is found under stones, 

 or on tree trunks. 



Rupestris. — Shell flat, horny, with spire 

 slightly raised, large umbilicus. It is found 

 among rocks. (Called also Umbilicata.) 



Pygmsea- — This is an extremely minute 

 shell, being the smallest of the genus, it is 

 flat, with large umbilicus, color brownish. It 

 found under stones, in woods, or among grass. 

 (To be continued.) 



