209 
finely striated spirally ; mouth equal to four-fifth’s of 
the shell, triangular, inside polished white, lip broad 
and thin, 6...4. NN. Ireland, most rare. 
TRICHOTROPIS. SoweErsy. 
Ovate-fusiform, with the apex pointed ; the aperture 
ovate, with a short oblique narrow canal, the outer 
lip thin and denticulated, the inner refleced but 
leaving exposed a rather large umbilical groove. 
T. Umsizticatus. Macgy. Aberd. p. 330.—Fusvus 
U. Brown in Wern. Mem. 8. p. 98. t. 1. f. 2.—TR. 
Acuminatus. Malac. Mag.— Annals Nat, H. 8.— 
Ovate-turreted, white or reddish white, with fine deeply 
impressed oblique striae; whorls convex, seyen, ob- 
liquely flattened above, longitudinally marked with fine 
but deep striz and spirally with compressed rounded 
strong ribs, six or seven on the very large and ventricose 
body whorl, between each pair of which is a smaller 
and three small ones near the distinct suture; spire 
slender; aperture ovate, broader behind, canal very 
smal] and oblique, inner lip reflexed but not concealing 
GENUS. 
the umbilicus from which a groove extends nearly to 
the canal. 0,58...3. Aberdeen, Se. 
GENus.—MUREX. 
Oval or oblong, canaliculated at the base; with external 
