634 LAND AND FRESH-WATER MOLLUSCA OF NEW ZEALAND, 



Since, however, Mousson's description was illustrated by excellent 

 figures, while Smith's species was unfigured, no one can doubt the 

 justice of adopting the nomenclature of the former in preference 

 to that of the latter. 



Otoconcha, Hutton, 1884. 

 Hutton, Trans. N.Z. Inst. xvi. p. 199. 



59 0. ddiidiata,* Pfeiffer, sp. 1852. 



E e f.— P.Z.S. 1852, p. 56; Conch. Icon. xii. Vitrina, pi. x. f. 72 ; 

 Man. N.Z. Moll. p. 12 ; Trans. N.Z. Inst. xvi. pp. 166, 199, pi. ix. 

 f. Y (radula), pi. xi. f. o (jaw), xxiii. p. 94 ; Man. Conch. (2), i. 

 p. 181, pi. XLH. f. 22, &c. 



H a b. — North Island : Auckland, Thames, Hawke's Bay, "Wel- 

 lington, and Forty Mile Bush. South Island : Boatman's and 

 Dyer's Pass. 



Microcystis, Beck, 1837. 



Beck, Index Moll. p. 2. 



60 M. KERMADECi, Pfeifter, sp. (emend. f), 1856. 



Ref.— P.Z.S. 1856, p. 326 ; Journ. de Conch, xxi. p. HI, <tc. 

 H a b. — Kermadecs ; Eaoul (Lt. Chimmo). 



Tkochonanina, Mousson, 1869. 

 Mousson, Journ. de Conch, xvii. p. 330. 



61 T. EXPosiTA, Mousson, 1873. 



R e f.— Journ. de Conch, xxi. p. Ill, pi. vii. f. 2 (two figures) ; 

 Man. Conch. (2), ii. p. 47, pi. xxiil. f. 60. 

 H a b. — Kermadecs ; Raoul. 



* I am of the opinion that this mollusc belongs to the genus Viirinoidect, 

 Semper ; the anatomy of the Philippine and the New Zealand species should 

 be compared. — H. S. 



t Originally misspelt kermandeci. 



