Irebale. — Suler's " Manual of the New Zealand Mollusca." 453 



Wales: A. contortum Hedley, 1907. Queensland; A. ascensum Hedley, 1907, 

 Queensland; A. foliation (Suter, 1908). New Zealand; A. pagodiformis 

 Sowerbv, 1914, New Caledonia. I have a sixth species, from Lord Howe 

 Island, at present undescribed. 



Estea roseola nom. nov. [P. 209.] 



This is proposed for the Rissoa rosea Hutton, 1873, which is invalidated 

 by Rissoa rosea Deshayes, lie Reunion Moll., p. 61, pi. vii, fig. 29, 1862. 

 The reference to the genus Estea is tentative, as the specimens before 

 me, identified from their coloration as Hutton's species, incline rather to 

 Amphithalamus, and might be better grouped there. I suggest that more 

 than one species is classed under Rissoa rosea Hutton through the prejudice 

 of the coloration. 



Notosetia subflavescens nom. nov. [P. 212.] 



Suter's selection of Rissoa atom is in 1908 was invalid, as Smith had 

 previously proposed the same name (Proc. Zool. Soc. (Lond.) ) for a St. 

 Helena shell. I rename Suter's species as above, but the generic, location 

 must be considered a tentative one. 



Rissoina chathamensis (Hutton. 1873). [P. 220.] 



This name must be used for the species commonly known as R. rugulosa 

 (Hutton, 1873). Both names were introduced in the same place, but the 

 one I select has five pages precedence, and therefore demands recognition. 

 Suter suggests that it is scarcely distinct from some Australian species, but 

 says that he has not the series available to settle the question. 



Suter has admitted Rissoina hanleyi Schwartz, 1860, and, though he writes 

 the specimens are " undoubtedly " this species, the determination may be 

 queried. No other extra-limital species of Rissoina is recorded from New 

 Zealand, and the Philippines are a long way off. R. hanleyi does not appea 

 (at present) to be a common shell in intermediate localities. 



My arrangement of the New Zealand Rissoidae would then be expressed 

 thus : — 



Genus Haurakia nov. 



Haurakia hamiltoni (Suter. 1898). 



- huttoni (Suter, 1898). 



- exserta (Suter, 1908). 

 Genus Merelina nov. 



Merelina cheilostoma Ten. -Woods, 1877. Synonyms : Rissoa plicata 



Hutton, 1873, not Deshayes, 1838 ; R. cheilostoma var. lyalliana 



Suter, 1898. 



(?) pingue Webster, 1906. 



Genus Onoba H. and A. Adams, 1852. Onoba H. and A. Adams, Ann. 



Mag. Nat. Hist., 2nd ser., vol. x, p. 358, Nov. 1, 1852. Type: 



O. striata (Montagu). 

 Onoba candidissima Webster, 1905. 



carnosa Webster, 1905. 



Genus Subonoba nov. 



Snbonoba foveauxiana (Suter, 1898). 



fumata (Suter, 1898). . . 



insculpta (Murdoch, 1905). 



