Hutton. — New Species of Tertiary Shells. 335 



I have revived for this species the name which I formerly 

 bestowed on B. terebelloides, Martens. 



Struthiolaria calcar. 

 Struthiolaria cincta, var. C, Hutton, " Cat. Tertiary Moll, of N.Z.," p. 11. 

 This species has been found by Dr. von Haast at Tengawai 

 Cliffs, South Canterbury ; and, as it keeps its characteristic claw 

 with great constancy, I think it deserves a specific name. 



Struthiolaria spinosa. 



Struthiolaria tuberculata, Hutton, " Cat. Tert. Moll, of N.Z.," in part. 



I have now no doubt but that S. tuberculata, and its variety 

 (3. of my catalogue, are distinct species, and I propose to retain 

 the name of tuberculata for the variety as more appropriate, and 

 to call those forms with spinous tubercles S. spinosa. This 

 latter species is found in the Trelissic Basin, etc., while 

 S. tuberculata comes from White Eock Eiver, etc. 



Cyclostrema obliquata, n. s. 



Shell large, spiral, depressed, smooth (?), with a spiral 

 groove above the periphery. "Whorls 4, increasing rather 

 rapidly. Suture deep ; umbilicus wide. Aperture oval, very 

 oblique. Peristome continuous, sharp. Greatest diameter, 0*8 ; 

 least, 0-62 ; height, 0-63 inch. 



Locality. Wanganui. 



A single specimen sent by Mr. Drew. As the shell is worn, 

 it is impossible to describe its external surface. 



Waldheimia ovalis, n. s. 



Shell thin, elongated, oval, the greatest width rather in front 

 of the middle, tapering gradually towards the beak ; front margin 

 rounded. Surface smooth or with very fine concentric growth- 

 lines. Valves nearly equally convex, the brachial valve regularly 

 arched. Lateral margins nearly straight, anterior margin 

 slightly sinuated, concave dorsally. Beak moderate, angled on 

 each side ; the foramen rather small, the deltoidal pieces well 

 developed. Loop reaching nearly to the anterior margin, not 

 much expanded ; septum extending through half tbe length of 

 the brachial valve. Length, 2-1 ; breadth, 1-5 ; depth, 1-1 inch. 



Locality. Wanganui ; Napier. 



This species combines the shape of W. vincentiana with the 

 small foramen of W. lenticularis. 



