MOLLUSC A 279 



(3) Vitrea pauxilliis Gould. 



Helix pnsillus Gould, P. Boston Soc. 11. 1846, p. 171 \jion H. pusilla, Lowe, 



1831]. 

 Helix paiixillus Gould, U. S. Explor. Exped. Moll. p. 40, pi. in. fig. 46. 

 Hyalinia baldicini Ancey, Bull. Soc. Malac. France, vi. 1889, p. 192 ; Sykes, P. 



Malac. Soc. London, in. pi. xiii. figs, i — 3. 



Hab. Maui (Gould) ; West part of Maui (Ancey) ; Haleakala, 5000 feet (Perkins). 

 See, for a note on the synonymy, P. Malac. Soc. London, 11. p. 298. 



PsEUDOHVALiNA Morse. 

 The original type was, I gather, Helix exigua Stimpson. 



(i) Psettdohyalina kauaiensis Pfeiffer. 



Helix kaivaiensis Pfeiffer, P. Zool. Soc. London, 1854 [1855], p. 52; Reeve, 



Conch. Icon. Helix, sp. 1256. 

 Hab. Kauai (Pfeiffer). — Maui and Oahu (Baldwin). 



I follow M. Ancey in the generic reference, as I do not know how, at present, the 

 nomenclature may be bettered. 



MiCROCYSTiNA Morch. 

 Type Nanina rinkii, Morch. 



(i) Microcystina (?) ciyptoportica Gould. 



Helix cryptoportica Gould, P. Boston Soc. 11. (1846), p. 20; U. S. Explor. Exped. 



Moll., pi. V. fig. 72. 

 Hab. Oahu (Pease, Baldwin). 

 I place this here as the description states "columella valde intorta." 



Microcystis Beck. 

 For a discussion as to the type, see P. Malac. Soc. London, 11. pp. 130—2. 



F. H. II. 37 



