324 Transactions. 



great kindness for identifying the specimen. The species is 

 said to occur at the Philippine Islands, and its turning up on 

 the northern shore of New Zealand is rather surprising. 



Nerita melanotragus, E. A. Smith (1884). 



There has been much confusion about the names bestowed 

 upon the common black Nerite of Australasia. Some years ago 

 I asked Professor Von Martens about his opinion on the subject, 

 and he told me that Gray was the first to use the Latin name 

 nigra for our shell, and as he indicated its native country there 

 would be no doubt about the species, and N. nigra, Gray, should 

 be used. I accepted Von Martens' s opinion, but last year, when 

 I had the pleasure of Mr. Hedley's visit, we discussed the sub- 

 ject, and he strongly advocated the no-doubt-correct view that 

 the same name should be used for the New Zealand shell as for 

 that of Australia and Tasmania. To finally settle the point 



1 wrote to Professor W. H. Dall, asking him which name he 

 would recommend to be used. With the usual great courtesy 

 the following reply was sent to me : " I think I should use 

 melanotragus. The species of Quoy and Gaimard, Nerite noirdtre, 

 which Gray (in Dieffenbach) latinized as Nerita nigra, and 

 identified with the New Zealand shell, according to Von Martens, 

 was of unknown locality, and might not really be the same as 

 Dieffenbach's shell. There is some little doubt about the identity 

 as well as the sufficiency of the diagnosis, and I think I should 

 prefer the name about which no doubt exists. Then there is 

 an earlier Nerita nigra (Dillwyn, 1817, following Chemnitz, vol. v, 

 p. 2015), perhaps a variety of N. bifasciata, Gin., which would 

 seem to preoccupy the name." This opinion is perfectly in 

 harmony with that expressed by Hedley (Proc. Linn. Soc. 

 N.S.W., 1900, pp. 500-2). For the synonymy of the species 

 see Pritchard and Gatliff, Proc. Rov. Soc. Victoria, vol. xiv 

 (n. s.), 1902, p. 95. 



Eulima treadwelli, Hutton (1893). 



Eulima micans, Hutton, Trans. N.Z. Inst., vol. xvii, 1885, p. 318 

 (not of T. -Woods). Eulima treadwelli, Hutton, Pliocene 

 Moll. N.Z., in Macleay Mem. Vol., 1893, p. 55, pi. vii, fig. 42. 



Recent specimens were collected near Stewart Island, and 

 some kindly given to me by Mr. A. Hamilton. The smaller 

 specimens have six whorls and a length of 4 mm., as mentioned 

 in Hutton's diagnosis, but two are considerably larger, one 

 having seven, the other eight, whorls, the latter measuring 



2 mm. by 6 mm. 



