141 



IGl - 166, pi. 7, and with those of Hutton on P. bnvimis, Trans. 

 N. Z. Institute, 1881, Vol. xiv., p. 152, pi. 3, figs. D. o. 



va7'. cuxicuLiNSULiE, Cox, 1872. 

 Illustration. Cox, P.Z.S., 1872. pi. 4, fig. 3. 

 Description. Op. cit., p. 19 ; Brazier, Aust. Mus. Mem. 2, p. 27. 

 Tyjw. The Cox Collection 

 Hah. Rabbit Island. 



A local race from a satellite isle, differing in being rather smaller 

 thinner and narrower than the type ; the rimation upon which the 

 author lays stress, appears of slight importance since all Placostyli 

 possess or lack it indifferently. 



var. ETHERlDGEi, Brazier, 1889. 

 Ilhistrafion. Brazier, Aust. Mus. Mem. 2, pi. o, figs. 1, 2, 7, 8 

 (reversed). 



Ti/pe. Australian Museum. 



A large thin elongate form, exhibiting transverse malleated 

 furrows, on the last whorl the epidermis is nearly black, the bright 

 cherry red of the typical aperture has almo.st disappeared, only 

 the columellar plication retaining a trace, the nacreous lining of 

 the interior and the callus on the body-whorl are tinged a 

 greenish-blue. Length 65, breadth 27, length of aperture 30, 

 breadth of aperture 20 mill. 



Hab. Under the wall of Mount Ledgbird. 



Several recent specimens appi'oach the interesting fossil variety 

 solidus which is exhaustively described by Mr. Etheridge in an 

 accompanying paper. All the dominant forms of Lord Howe 

 possess that instability of character which seems inherent in 

 insular faunae. 



14 SiMPULOSis (?) MASTERSi, Brazier, 1872. 



(Plate xxi., fig. 9.) 



Descrij)tion. Brazier, P.Z.S., 1872, p. 619; Pfr., Mon. Hel. Viv., 

 Vol. vii., p. 29 ; Brazier, Aust. Mus. Mem, 2, p. 27. 



Type. Australian Museum. 



Hah. A gully on the North Ridge, among dead leaves ; rare. 



The animal of the single specimen procured by the expedition 

 is so shrunk by the action of the alcohol in which it is preserved, 

 that I am unable, even with the aid of the microscope, to deter- 

 mine any details of its external anatomy, and T do not feel justified 

 in dissecting the solitary example possessed by the Museum. 

 Except by adding a figure of the shell I cannot therefore increase 

 our knowledge of this obscure form. 



B— June, 1891. 



