PYRULA. 85 
short, sometimes flattened ; columella smooth ; 
no fissure on the right lip. 
P. PERVERSA. Reversed, pyriform, ventri- 
cose, glabrous when adult (but when young trans- 
versely striated, and its lip furrowed within), light- 
ish fulvous, with broad longitudinal reddish-brown 
lines, the last whorl with a nodulous angle; apex 
mammillary ; tail striated and longish. 632. W. 
26. 88. 
P. vESPERTILIO. Sub-pyriform, thick, pon- 
derous, muricated above, reddish chestnut; the 
last whorl crowned with compressed tubercles ; 
spire rather exserted ; sutures simple ; sub-um- 
bilicated ; tail and spire (and when young alto- 
gether) furrowed. 4. W. 27. 114. 
P.MELONGENA. Pyriform, ventricose, turgid, 
glaucous, or reddish brown, with white transverse 
bands; sutures canaliculated; last whorl some- 
times smooth, but generally with three or four 
rows of thick spines; spire short, longitudinally 
plaited, and acute; mouth oblong and smooth. 
3to5. W. 26. 59. 
P. RETICULATA. Fig-shaped, cancellated, 
white, sprinkled when young with many yellow 
spots; the transverse strie larger and more dis- 
tant than the others; spire very short, convex- 
obtuse, and mucronated at the centre; mouth 
white. 4. EK. 432, 2. 
