372 RHIPIDOGLOSSATE AND DOCOGLOSSATE MOLLUSCA OF N.Z., 



Habitat. — Throughout New Zealand, Chatham Islands. Found 

 also in New South Wales, Victoria, and Tasmania. 

 The dentition is unknown. 



Order. DOCOGLOSSA. 



Family. AcNUEiDffi.* 



Genus. Acmzea. Eschscholtz. 



Sub-genus. Collisella. Dall. 

 A. Apex of the shell sub-central. 



Acmtea corticata. Hutton, Man. N.Z. Mollusca, p. 89, (1880). 



Habitat. — Wellington to Dunedin. 



Shell solid and depressed ; the interior margin usually brown, 

 rayed with white at the ribs, which vary in number from eight to 

 more than twenty. Eadula with a pair of marginal teeth on 

 each side. 



This species appears to be allied to A. rugosa, Quoy and 

 Gaimard, from Amboina. The dentition is figured in Trans. 

 N.Z. Institute, XV., pi. 15, fig. l. 



Acm^a cingtjlata. Hutton, N.Z. Journal of Science, I„ p. 477 



(1883). 



Habitat. — Dunedin and Lyttelton. 



Shell solid, white, with about 30 to 50 low radiating ribs ; 

 interior white, the margin light brownish pink banded with white 

 Eadula without marginal teeth, the three laterals arranged in an 

 obligue line. 



The dentition is figured in Trans. N.Z. Institute, XVI., pi. X., 

 fig. 5. 



Acm^ea rubiginosa. Hutton, Cat. Marine Moll, of New Zealand, 

 p. 42, (1873). 

 Habitat. — Chatham Islands. 



* The following species is omitted as not inhabiting New Zealand : — 

 J'ai- lla cantharous, Reeve; inhabits Tasmania. 



