112 BRITISH MOLLUSKS. 



Pupa cylindracea, Moquin-Tandon (1849), Act. Soc. Linn. Bord. vol. xv. 

 Pupa (Odostomia) cylindracea, Moquin-Tandon (1855), Hist. Moll. vol. ii. 



p. 390. pi. xxvii. f. 42 and 43, and pi. xxviii. f. 1 to 4. 

 Hal. Throughout Europe. Algeria. (Under stones and about hedges, 



among moss, etc.) 



Pupa cylindracea is even more generally and more plentifully 

 distributed throughout Europe than P. muscorum, and is often 

 taken for it. It abounds in all localities in the British Isles, among 

 moss on walls or under stones, and especially under bark, and in 

 the crevices of old trees. The shell is more shortly cylindrical than 

 that of P. muscorum, and has hardly so many whorls. The aper- 

 ture is rather triangularly compressed, and the tooth, though not 

 unfrequently a little obsolete, is rarely absent. Generally it is 

 rather conspicuous. The lip is also conspicuously flatly expanded 

 and opake. The animal presents scarcely any appreciable variation, 

 being of the same dark leaden blue colour, speckled and lineated at 

 the sides, and white towards the sole. P. cylindracea has a wide 

 distribution on the Continent, but it is not clear whether it extends 

 so far north as Iceland or Lapland. It does not appear in the lists 

 of Siberian land shells. 



4. Pupa Anglica. English Pupa. 



Shell ; ovately cylindrical, rather broadly umbilicated, thin, fulvous 



horny, semitransparent, whorls six, rather nar- 

 row, obsoletely finely striated ; aperture com- 



pressly triangularly ovate, sinuated above, 



rounded below, with five parietal teeth, of 



which two are more internal and obscure, lip 



rather callous, whitish. 

 Vertigo Anglica, Ferussae (1822), Tail. Syst. p. 64. 

 Turbo Anglicus, Wood (1828), hid. Test. Supp. p. 19. 



pi. vi. f. 12. 

 Pupa Anglicus, Gray (1828), Lid. Test. Supp. p. 50. 

 Pupa ringens, Jeffreys (1830), Trans. Linn. Soc. vol. xvi. part 2. p. 356 



(not of Michaud). 

 Vertigo (Isfhmia) Anglica, Moquin-Tandon (1855), Hist. Moll. vol. ii. p. 



404. pi. xxviii. f. 34 to 36. 

 Hah. In vai'ious parts of Britain, from Scotland to the Channel Islands. 



(Under stones, among dead leaves and moss.) 



