221 
INFUNDIBULUM tuberculatum. 
TAB. XCVII. —Figs. 4, and 5. 
Spec. Char. Gibbous,, conical,, oblique, rugosely 
tuberculaie. 
Syn. Trochus apertus. Brand. Foss. Rant on. 
Tab , 1 . Jigs. 1 and 2. 
Turns of the spire three or four; the latter one inflated, 
covered by rows of rugged projections. 
Brander’s name, apertus, is applicable to all the species 
of Infundibulum, and is therefore objectionable, but while 
the shell was considered a Trochus, is exhibited a remark- 
able character. Brander has been wrongly quoted by 
Delamarck, who makes Brander’s T. apertus and opercu- 
laris the same as his Calyptraea trochifonnis and my Infun- 
dibulum spinulosum. 
INFUNDIBULUM echinulatum. 
TAB. XCVII. —Fig. 2. 
Spec. Char. Gibbous, depressed, conical, oblique; 
apex acute, smooth, last turn obscurely echU 
no kited. 
Spiral turns three or four, the last being much the 
largest, the others are well defined, and often rather ventri- 
cose. The short spines are most prominent near the edge, 
but even there they are in many specimens worn away, as in 
the one figured. The internal plate resembles that of the 
last in form. Diameter sometimes three-fourths of an inch. 
