264 MOLLUSCA. PULMONIFERA. Helix. 



76. H. arbustorum. — Shell mottled with a single brown 

 longitudinal band. 



Cochlea maculata, List. An. Ang. 119. Conch, t. lvi. f. 53. — H. arb. 

 Mull. Verm. ii. 55. Penn, Brit. Zool. iv. 136. Mont. Test. Brit. 413. 

 — In boggy places, common. 



Breadth scarcely an inch ; whorls slightly striated longitudinally, and 

 wrinkled transversely ; mouth obliquely transverse, rounded ; margin white, 

 thick, reflected. 



77. H. nemoralis. — Peristome brown ; margin next the pil- 

 lar nearly straight. 



Cochlea citrina, List. An. Ang. 116. Conch, t. lvii. f. 54.— H. nem. Mull. 



Verm. ii. 46. Penn. Brit. Zool. iv. 137. Mont. Test. Brit. 411 



Shady places, common. 



Breadth about an inch ; whorls five, wrinkled across. Colour yellowish, 

 without bands, with a single band, or with several bands. These varieties 

 are considered by the Reverend Revitt Sheppard as distinct species, because 

 they do not unite indiscriminately in the season of love ; and he adds, " from 

 the one-banded and many-banded sorts I have taken the spicula or love-darts ; 

 that of the former is four-sided in the middle, and perfectly straight ; in the 

 latter it is also four-sided in the middle, but curved as in H. aspcrsa." 



78. H. hortensis. — Margin of the mouth invariably white ; 



even near the pillar. 



Cochlea citrina, No. 1. List An. Ang. 117. — H. hort. Mull. Verm. 52. 

 Mont. Test. Brit. 412 Not common. 



This species closely resembles the preceding, of which it is considered by 

 many as only a variety. It is smaller in size, and less common. 



79. H.jitsca. — Shell thin, pellucid, horn-coloured, with five 



or six whorls. 



Mont. Test. Brit 424. t. xiii. f. 1 — In England and Ireland, not uncom- 

 mon. 



Breadth less than half an inch ; smooth ; mouth lunated, narrow near the 

 pillar, thin, not reflected ; whorls rounded, the last large. This seems to be 

 the H. fulva of Muller, No. 249 — A variety of a white colour, glossy, and 

 pellucid, was sent to Montagu from Scotland by Mr Boyes. 



EXTINCT SPECIES. 



1. H. carinata. — Spire short, conoidal, of three or four turns; a raised, 

 flat, ribband-like projection passes from the lateral edge of the mouth along 

 the middle of the last turn, till it meets the inner edge of the mouth, whence 

 it continues between the volutions to the end. Umbilicus open. — Sower. 

 Min. Conch, t. x. upper and lower figures In Carboniferous Limestone, Set- 

 tle, Yorkshire. 



2. H. Gentii. — Discoid, gibbose, smooth, with a spiral band along the upper 

 part of the whorl; aperture large, expanded, elliptical. — Sower. Min. Conch. 

 t. cxlv. — Green Sand near Devizes. 



3. H. globosa. — Globose, slightly elongated, obscurely transversely striat- 

 ed ; whorls but gradually increasing in size ; outer-lip reflected. — Sower. Min. 

 Conch, t. clxx. Crag Fresh water Limestone, Isle of Wight. 



