IhedaIjB — Suter's "Manual of the New Zealand Mollusca." 439 



The first three must be grouped together, whilst the hist must be sepa- 

 rated ; and though the shell described as Pkotinula suteri by Smith has been 

 classed in Gibbula by Suter on account of the presence of jaws, it is much 

 nearer Margarella, and I would there place it for the present. I believe. 

 from a criticism of the shells — and this is confirmed by examination of 

 the radula — that the recognition of the jaws depends too much upon the 

 personal equation, and cannot in the present state of our knowledge be 

 depended upon. I would therefore reject Pkotinula, and replace it by 

 Margarella, and recognize three Neozelanic species, thus : — 



nus Margarella Thiele. Synonym: Margaritella Thiele, 1891, not 



Meek and Heyden, 1860. 

 Margarella antipoda (Hombron and Jacquinot, 1854). Synonym: 

 Chrysostoma rosea Hutton, 1873. 

 — decepta (Iredale, 1908). 

 suteri (E. A. Smith, 1894). 



I see no good purpose in retaining Hutton's name rosea for a variety, 

 as the colour-variation is endless, and there is no definition. 



Gibbula nitida Ad. & Aug.. 1864. which Suter placed in Pkotinula be- 

 cause the animal had no jaws, is certainly not congeneric with the above, 

 and shows a much closer relationship with G. picturata of the same authors, 

 which Pilsbry made the type of ( antkaridella, a section of Gibbula. Jaws 

 are said to be present, but neither of thes< a very close relation- 



ship to Gibbula. 



Genus Solariella Searles Wood. [P. 140.] 



ruder this genus-name in the British Museum is placed the shell known 

 to Neozelanic collectors as Monilea egena Gould. It should be remembered 

 that this generic (Monilea) location was simply Hutton's solution, as 

 Pilsbry in his monograph sti e did not know it, and therefore followed 



Hutton. To my eyes the Neozelanic shell was not congeneric with Monilea, 

 but was nearer Minolia, which Suter used subgenerically for some other 

 Neozelanic species. I could not see any subgeneric difference between these, 

 and the) 7 " seemed well placed in Solariella. 



Mr. E. A. Smith has just told me that he cannot determine Mem ilea 

 Swainson, that he cannot separate Minolia from Solariella. and that all 

 the Neozelanic species are congeneric. His conclusions will be published 

 before this is in print, but it is certain that Monilea must be rejected, and 

 in its stead Solariella may be used, and all the Neozelanic species be so 

 classed. 



Fam. Trochidae. [P. 150.] 



Add : Genus Angaria Bolten. Angaria Bolten, Mus. Bolten., p. 71. 1798. 

 Type : Turbo delpkinus, Linne. Synonym : Delphinula Lamarck, &c. 



This genus has not yet been recorded from New Zealand, though I have 

 . recorded two species at the Kermadec Islands. From dredgings made at 

 that place I sorted out many minute shells, and a long series enabled me to 

 recognize the growth stages of this genus. They show no form or sculpture 

 at all like the adult, and do not appear to have yet been figured. The 

 two species, Liotia serrata Suter, 1908 (p. 151), and Liotia solitaria Suter, 

 1908 (p. 152), are probably both juveniles of this genus : the latter certainly 

 is, whilst the species Suter compared it with — viz., L. stellar is Ad. & Rve. — 

 is also a juvenile Angaria, as is shown here in the British Museum, the 

 type being so placed when it was described. 



