271 
MOLLUSCA. 
By E. R. Sykes, 
WITH INTERCALATIONS ON ANATOMY 
By Lt.-Col. Godwin-Austen. 
Contents. § 1, General remarks, p. 271 ; § 2, Systematic account, p. 275 ; § 3, Bzblo- 
graphic list, p. 400; § 4, Alphabetical list of names placed as synonyms, Pp. 407 ; 
§ 5, Alphabetical list of unidentified or erroneously recorded names, p. 412. 
Tue material upon which this study of the land and fresh-water Mollusca is based, 
in addition to the collection formed by Mr Perkins, consists in a great measure of the 
collection in the British Museum (Natural History), where the bulk of Newcomb's and 
Pfeiffer’s type-specimens are to be found. Thanks to the kindness of Prof. A. Hyatt, 
an examination has been made of the type-specimens of the species described by 
Gulick, of the genus Leféachatina, and now preserved at Boston. Mr D. D. Baldwin, 
of Maui, has also very kindly sent over a number of specimens and Mons. Ancey has 
lent the types of some species described by him. A collection formed in the Islands by 
Mr Hutchison has also been placed in my hands for examination by Mr Fulton. 
Lt.-Col. H. H. Godwin-Austen, F.R.S., has enabled me to add to the interest of 
this work in a great degree, by very kindly dissecting some of the species and permitting 
me to incorporate here the results; it is hoped that he may be able to give a further 
account of the anatomy in the Achatinelldae. 
To Mr Edgar A. Smith, I desire, in conclusion, to express my most grateful thanks 
for his unfailing help and courtesy. 
§ 1. General Remarks on the Mollusca. 
To the student of the Mollusca, the Hawaiian Islands fauna is probably more 
familiar by name than that of many better known places, owing to the occurrence there 
of the well-known Achatinelloid group of forms. 
Tables of the distribution of the fauna are given below, but a few general remarks 
here may be of interest. 
ifs 385. Wt 36 
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