THE FAUNA OF SOUTH WESTERN AUSTRALIA. 
105 
Family ICHTHYOBDELLIDAE. 
Povtobdella rayneri, Baird. — Sharks Bay (off Denham). 
Plaiybdella michaelseni, n. sp. — Cockburn Sound, \\ arnbro Sound. 
Ichthyobdelh australiensis, n. sp. — Champion Bay offJGeraldton. 
Family GLOSSOSIPHONIDAE. 
Clepsine, n. sp. (?). — Broome Hill (fresh-water). 
Family GNATHOBDELLIDAE. 
Hirudo australis, Bosisto. — Serpentine, Bunbury and Boyanup 
(fresh-water) . 
VOLUME III, Part 13. CRINOIDEA. 
By Austin Hobart Clark (Washington). 
Pp- 433-467- 
In the first, chapter the author deals with the “ History of 
the Study of the West Australian Crinoids, with a brief Survey 
of the Literature.” The following chapters deal with the Aus- 
tralian Crinoid Fauna” in general, its relation to other extra- 
Australian faunas, and the more special faunas ol the different 
Australian districts. He gives lists of : The East Indian Crinoids 
occurring on the coasts of Australia; Ihe Iropical Crinoids 
confined to Australia; and 1 lie Crinoids confined to Southern 
Australia. The Australian crinoid fauna is divisible into two 
parts : (1) the tropical, with about 85 per cent, of the species, 
inhabiting the northern coast and becoming progressively more 
and more attenuated, extending south on the west coast to 
Fremantle (32 0 00' S.) and on the east coast to Port Jackson 
( 33 ° fio' S.) ; and (2) the southern, with about 15 per cent, of the 
species, inhabiting the southern coast and extending northward 
on the west coast to Sharks Bay (25 ' 30' S.) and on the east coast 
to Broughton Island (32 0 37' S.), and one species to blinders 
(14 0 10' S.). 
A Summary of the Locality and Depth Records of West 
Australian Crinoids is followed by the Annotated List of Species. 
Suborder OLIGOPHREATA. 
Family COMASTERIDAE. 
Capillaster multiradiala, Linn.— Known from Dirk Hartog Island, 
N. of Port Walcott. 
Comatulella brachiolata, Lamarck.— Koombana Bay oft Bunbury. 
Comatula rotalaria, Lamarck. — Known from Holothuria Bank. 
etheridgei, A. H. Clark — Known from Holothuria Bank 
and Baudin Island. 
Solaris, Lamarck — Known from Holothuria Bank. 
