1S7 



Descriptions. A.M.M., pp. 26, 30 ; R.A.M., Yol. i., pp. 78-80. 



Type. Australian Museum. 



Hab. On palms at the lower levels below 400 ft. 



Jaw (pi. xxii., fig. 4) small, rudimentary, thin, transparent, 

 lunate, emarginate on anterior margin, with slight median pro- 

 jection on lower margin, ends rounded. Larger specimens are 

 contained in the collection than the one described in tlie 'Record.s,' 

 one measures 27 mill, in length. 



0. Microcystis catletti, Brazier, 1872. 



(Plate xxi., fig. 5.) 



Descriptions. Brazier, P.Z.S., 1872, p. 617 ; Pfr., Mon. Hel. 

 Viv., Vol. vii., p. 61 ; Brazier, Aust. Mus. Mem. 2, pp. 26, 29. 



Type. Australian INIuseum. 



Hah. Rabbit Island. 



var. MAJOR, nov. var. 



Larger than type, columellar margin furnished with a tubercle. 

 Diam. maj. 11, min. 10, alt. 6 mill. 



Type. Australian Museum. 



Hnh. The Old Settlement. 



6. ClIAROPA TRXTRIX, Pfeiffev, 1855. 



Illustrations. Kiister's Conch, Cab. pi. 162, figs. 14-17 ; Tryon, 

 Man. Conch, ser. 2, Vol. iii., pi. 7, figs. 2 — 4. 



Descriptions. Pfr., P.Z.S., 1855, p. 92 ; Pfr., Mon. Hel, Viv., 

 Vol. iv., p. 87 ; Tryon, Man. Conch. 2-3-35; Brazier, Aust. Mus. 

 Mem. 2, pp. 26, 30. 



Type. British Museum. 



Hab. The summit of Mount Gower. 



H. pinicola, Pfr., from the Isle of Pines, a dependency of New 

 Caledonia, is a near ally of the preceding species, and supports 

 the argument advanced under the head of P. bivaricosus on 

 behalf of a recent land connection with New Caledonia. It is 

 incorrectly (Mon. Hel. Viv., Vol. iv., p. 106) stated to inhabit 

 Lord Howe. 



7. C. ciMEX, Pfeiffer, 1854. 



Illustrations. Reeve, Conch. Icon, vii., pi. 201, fig. 1411 ; 

 Tryon, Man. Conch., ser. 2, Vol. 3, pi. 52, fig. 4. 



Descriptions. Pfr., P.Z.S,, 1854, p. 288 ,; Pfr., Mon. Hel. Viv., 

 Vol. iv., p. 104; Tryon, Man. Conch. 2-2-170; Brazier, Aust. 

 Mus. Mem. 2, pp. 26, 30. 



Type. British Museum. 



Hah. Lord Howe. (?) 



