MOLLUSC A 279 



(3) ]'iirca pauxilhis Gould. 



Helix pusilhts Gould, P. Boston Soc. 11. 1846, p. 171 \iion H. pusilla, Lowe, 



1831]. 

 Helix paitxilbis Gould, U. S. Explor. Exped. Moll. p. 40, pi. iii. fig. 46. 

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



Malac. Soc. London, iii. 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. 



P.sEUDOHY.\LiNA Morse. 

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



(i) Pse2tdohyalina kiwaiensis Pfeiffer. 



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

 Conch. Icon. Helix, sp. 1256. 



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



L 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 (?) cryptoporlica Gould. * 



Helix cryploportica 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. 17 



