92 



the canal; tlie spines on the varices of the second posterior 

 whorl are sometimes connected by a faint spiral ridge. Be- 

 tween each varix is a tubular spine. The posterior whorls, 

 with alternating conical spines and tubular projections. Sur- 

 face marked with striae of growth, otherwise smooth. Aperture 

 •ovate ; peristome continuous, thick, erect ; canal closed, com- 

 pressed, of moderate length, curved to the right ; anterior 

 varix decurrent on the outer face of the canal. The three other 

 varices terminate in imbricating spines spirally arranged on 

 the canal. 



Length, 38 ; breadth, 22. 



Localities. — Table Cape (Sobart Mus., R. 21. Johnston!'); 

 lower beds at Muddy Creek ; Eiver Murray Cliffs, near 

 Morgan. Also in the Pareora Series at Mount Harris, &c., 

 N. Zealand (Wellington dlus. .'). 



The identification of T. hehetatus with the Australian 

 T. IfcCoyii rests upon the comparison of authentic specimens. 



This fossil is somewhat related to T. pungens of the European 

 Eocene ; but it has a shorter spire, different shaped whorls, 

 ^nd more spines on the varices. 



2. Typhis acanthopterus, spec. nov. Plate i., fig. 2. 



Shell ovately fusiform ; whorls seven and a half ; the one 

 ^nd a half embryonic whorls, small, rounded, and smooth ; the 

 rest of the spire of gradated whorls, the posterior one-third of 

 each whorl flattened or slightly sloping ; the ornament con- 

 sists of a row of relatively large spines on the shoulder of the 

 whorl and of two rows of smaller spines between the former 

 and the anterior suture. The body whorl is squarely rounded, 

 ornamented with four spinous varices, each of which is sub- 

 ordinated anteriorly by a similar but smaller varix ; there are 

 about eight slender recurved spines on each varix ; between 

 each varix there is a stout, long, and tubular spine on the 

 shoulder of the whorl. Aperture and canal as in T. McCoy ii. 



The surface is striated with growth-lines, and is obliquely 

 ridged coincident with the variceal spines. 



Length, 23 ; breadth within the spines, 10 ; length of aper- 

 ture and canal, 14. 



Locality. — In the blue clavs at Schnapper Point, Port Philip 



This species differs from T. JMcCoyii by its sub-quadrate 

 whorls, more spines on the varices, by the duplication of the 

 varices, and by the oblique ridges between the varices. 



3. Typhis disjunctus, spec. nov. Plate i., fig. li. 

 Shell narrowly elongated ; whorls four and a half, sloping 

 inward at the suture, almost disjoined ; from the keel there 



