376 Prof. F. M'^Coy on neiv Species of Fossil Volutes 



ing turn nipple-shaped, with a small eccentric projecting apex ; 

 the length of the puUus equalling once and a half the width of 

 the next following turn of the spire. Each turn of the spire 

 enihracing the next preceding one at the suture, near which they 

 are concave, then forming a convex shoulder and nearly parallel 

 with the axis of the shell below ; body-whorl fusiformly narrowed 

 in front, and marked with a broad siphonal notch, without an- 

 terior crest or ridge. Inner lip excessively thin, moderately 

 spreading ; plaits of the columella four, widely separated, very 

 prominent, narrow, one smaller. Aperture moderately wide, 

 oblong, narrowed above and below, becoming effuse with age. 



Pullus smooth ; the next two turns of the spire with exces- 

 sively fine spiral strise, only visible v/ith the lens (about ten or 

 eleven in the space of 1 line) ; rest of the spire and body-whorl 

 smooth or marked with fine lines of growth. Length of pullus 

 4- lines, width of ditto 3 lines ; length of adult (including the 

 pullus, which is 3 lines) 6 inches ; proportional length of body- 

 whorl T^V; length of wing -fVV; width of body and wing -jV-o ; 

 width of body on inside of base of aperture -^^. 



There is no living or fossil species at all like the present in 

 the large, thin, angular, wing-shaped outer lip and fusiform 

 body. Young specimens an inch and a half long are irregularly 

 fusiform, of two whorls in addition to tha pullus of nearly two. 



The layer of shell bearing the microscopic spiral strise seems 

 very liable to fall ofi", leaving the whorls only marked by the 

 lines of growth. 



Not uncommon in the passage-beds of the tertiary sands, 

 Ad. 22, at Bird Rock, near Geelong. 



Valuta Hannafordi (M'Coy). 

 Fasciolaria Hannafordi, olim, MS. 

 Broad, fusiform ; pullus at apex of spire, very large, smooth, 

 spheroidal, of little more than one turn and a quarter; spire 

 conical, apical angle 70°, of four whorls (besides the pullus), 

 each obtusely angulated in the middle and bearing on the angle 

 from twelve to seventeen large nodose tubercles, obtuse and 

 conoidal on the body-whorl, on which the smaller number is 

 found, more elongate on those of the spire, on the upper of 

 which the greater number occur ; the oblique space between the 

 tubercles and the suture marked with narrow, slightly undulating, 

 thread-like, spiral ridges, irregularly alternating in thickness; 

 below the tubercles the body-whorl is smooth or marked with 

 obtuse lines of growth as far as the anterior extremity, which is 

 marked by thick obtuse spiral strife crossing the lines of growth; 

 but the young whorls or vertical portions of the smaller turns 

 of the spire are marked with spiral strise slightly larger and less 



