440 Transactions. 



The presence of the genus in north Neozelanic waters is not strange, 

 as it occurs on all the three northern groups — Lord Howe Island, Norfolk 

 Island, and the Kermadecs. From the two former it is as yet known only 

 by juvenile and half-grown specimens dredged, but at the Kermadecs one 

 species was rarely obtained, alive and adult, below low water. The juveniles 

 dredged show great variation, so that I cannot refer Suter's two species to 

 any named species, nor decide whether they are conspecific. The only 

 conclusion under such circumstances is to admit both, and draw attention 

 to the matter, so that adults may be looked for. Will northern collectors 

 please note. 



Genus Angaria Bolten, 1798. 

 Angaria serrata (Suter, 1908). 

 solitaria (Suter, 1908). 



Fam. Liotiidae Iredale. [P. 150.] 



I propose this family name for quite a different association to the family 

 Liotiidae Gray, used by Pilsbry and Suter. That name is based upon the 

 usage of Liotia for the shells with heavily varicosed aperture, and operculum 

 with a calcareous superimposition in the form of spirally disposed particles. 

 No member of this group inhabits New Zealand as far as is yet known, though 

 I collected a typical species at the Kermadecs. 



In the Proc. Mai. Soc. (Lond.), vol. ix, p. 257, 1911, I showed that 

 Liotia Gray was proposed for the shells typified by Delphinula cancellata 

 Gray, and that species did not possess a variced mouth nor a calcareous 

 operculum. The name for these latter I also concluded was Liotina Fischer 

 (Man. de Conch., p. 831, 1885), with type L. gervillei Defrance. I have 

 since recognized that the type of Liotia agrees with Cyclostrema micans 

 A. Adams in every essential particular. The types of both are before me. 

 As this was selected by Tate as typical of a new genus Pseudoliotia, that name 

 falls as an absolute synonym of Liotia Gray. The species classed by Suter 

 under Liotia have no relationship with that genus. 



On p. 152 the family Cyclostrematidae Fischer is admitted. This would 

 partly represent my family Liotiidae. 



On p. 153 the genus Cyclostrema is utilized for a species — Cyclostrema 

 eumorpha Suter. Suter's arrangement is based upon that proposed by 

 Miss Bush after a study of west North American forms. I have investi- 

 gated the austral species in view of Miss Bush's conclusions, and cannot 

 advise that the groups there proposed should be introduced into Neozelanic 

 literature. Miss Bush, however, killed the ghost of Cyclostrema, as it appeared 

 that no one previously had examined the matter, but simply used Cyclo- 

 strema as a " waste-paper basket " for puzzling minute Trochoids. I am 

 sorry that this usage still persists, a chief offender being Melvill, who 

 wrote upon the Cyclostrematidae of the Persian Gulf (Proc. Mai. Soc. 

 (Lond.), vol. vii, pp. 20-28, 1906), and has since described species of 

 " Cyclostrema " most obviously not congeneric with the type. The genus 

 " Cyclostrema " was proposed for a shell found among some West Indian 

 forms. The type is lost, and the nearest species known comes from the 

 Philippines. I have often studied the figure and description of Marryat's 

 genus and species, and these seem to represent an immature shell which 

 might have developed into a species of what I call Liotina. I would suggest 

 that the name be dismissed as indeterminable, especially as it has been so 

 casually used in no scientific manner. 



