199 
interstices, and numerous spiral thin lamine traversing 
the interstices and decussating the ribs on which they 
form small oblong tubercles; mouth ovate oblong, the 
canal very oblique and elongated. 4. Aberdeen. 
P. Reticunata. Brown. Illus. t. 38. f. 43,4.— 
Macgyl. Aber. p. 173.—Oblong-fusiform, thin, dull 
white, with the spire tapering to a rather obtuse point, 
and somewhat convex in outline, with numerous longi- 
tudinal narrow ribs dividing on the body (whose breadth 
is rather less than the length of the spire) into several 
raised lines, and all reticulated with transverse raised 
lines; whorls slightly subangulated above, the space 
between the angle and the distinct suture convex and 
sloping ; mouth oblong, narrow, deeply sinuated at the 
suture, lip thin, canal very short. 0,17.,,0,50. Ader- 
deen, §e. 
Grnus.—FUSUS., 
Fusiform or subfusiform, canaliculated at the base, 
ventricose below or in the middle, without varices ; 
spire elevated and elongated ; outer lip not notched ; 
pillar smooth ; operculum horny. 
* Whorls destitute of longitudinal ribs. 
