84 BOOK OF SPECIES. 
two white bands; upper whorls slightly keeled 
and somewhat nodulous ; the lower whorl (except 
of the young) rounded; lip furrowed within. 6. 
W. 26. 108. 
F. ArTICULATUS. Fusiform-turreted, finely 
striated transversely, shining, light chestnut, with 
articulated whitish and brown lines girding it; 
lip furrowed within; a tooth at the upper angle 
of the columella; beak short and emarginate. 
5. W. 23. 88. 
F. TURRICULA. Fusiform-turreted, with longi- 
tudinal plaits of transverse striz, white or brown- 
ish white; the whorls rising almost perpendicu- 
larly from each other, and forming an abrupt slope 
at their summit; mouth oblong and narrow, end- 
ing in a short and broad beak. 3. B. W. 27. 
133. 
F. muricatus. Oblong, fusiform, and very 
rough; whorls ventricose, with longitudinal ribs 
and elevated transverse striz; pale flesh-colour, 
generally covered with an orange-red epidermis ; 
aperture oval, ending in a long and narrow canal, 
together with it equal to half the length of the 
shell; lip sharp, crenulated within. B. 3. W. 
27. 138. 
PYRULA. 
Sub-pyriform, channelled at the base, ventricose 
at the upper part; no external varices; spire 
