438 Transactions. 



Cantharidus oliveri 110111. nov. [P. 126.] 



I propose this name for the. species described by Suter under the name 

 Cantharidus pupillus Huttori, 1884. Hutton did not describe this shell 

 as a distinct species, but simply made use of Gould's name. This mis- 

 interpretation cannot be utilized as the basis of a name : this law has been 

 universally accepted, and Suter has constantly admitted it. 



Hedley wrote his conclusion thus (Proc. Linn. Soc. N.S.W.. vol. xxxiv, 

 p. 436, 1909) : *' Born never proposed his Patella tricarinata as a new- 

 species, so that when it is accepted that he did not treat of the Linnean 

 P. tricarinata his name has no standing in literature." In case I have no 

 other opportunity, I would point out that the name selected by Hedley on 

 that occasion — viz., Emarginula clathrata Adams and Reeve, 184 — is 

 antedated by Deshayes's usage (Ency. Meth. Vers., ii, p. Ill, 1830). 



I name the Cantharidus after my friend Mr. W. R. B. Oliver, who accom- 

 panied me on my many collecting trips in New Zealand. 



Cantharidus lineolaris (Gould, 1861). [P. 130.] 



Hedley (Proc. Linn. Soc. N.S.W., vol. xxxiii. p. 466, 1908) has shown 

 that this name, published in the Proc. Bost. Soc. Nat. Hist., vol. viii, p. 14, 

 1861, has priority over H. and A. Adams's name picturatus of 1863. If 

 the locality " Stuart Island " be the only one known, it would seem to lie 

 a doubtful constituent of the New Zealand fauna. The sections Banhivia, 

 Leiopyrga, and Thalotia would be best treated as genera; but I hope to deal 

 with the species of Cantharidus at a later date. Thalotia is generically 

 recognized in the British Museum collection, as is also Banhivia, but Leio- 

 pyrga is given subgeneric rank under the latter. 



Calliostoma tigris (Martyn, 1784). [P. 148.] 



Add as a synonym Turbo granatum Bolten, Mus. Bolten., p. 88, 1798. 

 This name is given to Der Granat-Apfel (T. Martin, Univ. Conch., 2, fig. 75), 

 so that the synonymy is exact. 



Margarella decepta (Iredale, 1908). [P. 133.] 



I will shortly give a figure of the shell I described as Photinula decepta, 

 which has not yet been figured. It closely resembles Photinula violacea 

 (Sowerby), and must be classed in the same genus. From examination of 

 the radular characters the species of the caerulescens group (true Photinula) 

 have been separated from the forms allied to violacea. Such a separation 

 is amply confirmed by shell characters, so that Photinula can be dismissed 

 from the Neozelanic fauna. I was the first to introduce it in connection 

 with the species under discussion, and I did so on account of the apparent 

 close relationship with violacea, which I only knew from literature. For 

 the violacea group Thiele proposed (Gebiss d. Schnecken, vol. ii, p. 259, 

 1891) Margaritella, quoting violacea, expansa, and the New Zealand antipoda. 

 The genus-name being preoccupied, he has since amended it to Margarella. 

 This name should be used. Suter has rejected this name, using Photinula, 

 making the remark, " Thiele included in his genus Margarella our species 

 P. nitida and P. antipoda because the dentition shows a close resemblance. 

 Margarella stands, no doubt, nearer to Yalvatella, the animal having jaws." 

 The conchological features of antipoda, decepta, and violacea are essentially 

 identical, whilst nitida shows quite different features. 



