NERITA. 51 
lip flattened, septiform, acute, and frequently 
dentated or crenated on the inner edge of the 
lip; outer lip obtuse, and often provided inter- 
nally with teeth. 
N. exuvia. Thick, white, spotted with black, 
with transverse acute squamulated ribs, and 
longitudinal striez decussating them; outer lip 
crenate within; inner lip verrucose above, and 
the margin toothed; columella spotted with 
yellow in its upper part; diam. li. W. 36. 
49. 
N. pELERONTA. Thickish, transversely fur- 
rowed, ash or reddish yellow, with longitudinal 
black or rose-colour flexuous streaks; mouth 
white; inner lip with two teeth, and a saffron or 
blood-coloured spot in themiddle ; outer lip smooth 
within in the centre, but with a tooth or two on 
the sides; diam. 1+. W. 36. 46. 
N.pouira. Thick, glabrous, shining, slightly 
striolate longitudinally ; colours various; spire 
extremely blunt; inner lip smooth, polished, and 
dentated ; outer lip slightly crenulated, yellowish 
within; diam. 13. W. 36. 39. 
N. ALBICELLA. Solid, compressed at the 
sides, and girded with broad flattish furrows ; 
whitish, with irregular black or dark brown spots, 
bands, or clouds, or sometimes blackish, with 
white spots; spire lateral, obsolete, and fiat; lips 
