AZECA. 127 



prominent, especially anteriorly, not expanded nor reflected, 

 but thickened within by a narrow callus, usually reddish 

 or claret colour. Pillar lip narrow, a little strengthened, 

 short, very slightly twisted, most indistinctly subtruncated 

 below. No umbilical chink. Length, a quarter of an 

 inch ; breadth, rather more than a line. 



The animal is thick and short, of a general lead-blue 

 hue, darker on the neck and tentacula. The upper ten- 

 tacles are stout and clavate, the lower ones very short. 

 The foot is acute and short posteriorly, not reaching 

 beyond the bound of the second whorl. 



A very common and pretty little shell, plentiful under 

 stones, and among fallen leaves, in both moist and dry 

 places, in all parts of the British Isles. It ascends to a 

 considerable elevation among mountains. It has a very 

 wide range throughout Europe. 



Note. — The Bitccinum ohtusulum of .authors (Mont. Test. Brit. p. 250; Maton 

 and Rack. Trans. Linn. Soc. p. 140; Turt. Conch. Diction, p. 18; Fleming, 

 Brit. Anim. p. 344; Brown, 111. Conch. G. B. p. 4, pi. 4, f. 18) is derived solely 

 from a wretched drawing (f. 59) in Walker's " Testacea Minuta," which may 

 possibly be intended for the fry of this species. 



AZECA. Leach. 



Shell spiral, cylindrical, elongate-ovate, smooth, and 

 shining with a vitreous lustre, derived from the polished 

 epidermis. Mouth ovate, peristome entire, toothed, 

 thickened but not reflected. Columella imperforate. 



Animal like that of Zua. 



This genus is so nearly allied to the last, that it might 

 with convenience be regarded as a subdivision of it. 

 Practically, its characters are easily recognized. The 

 denticulated (and as if ringent aperture) of the shell con- 

 spicuously distinguishes it. 



