104 
W. MICHAELSEN : 
VOLUME III, Part 11.— POLYPHACOPHORA. 
By Prof. J. Thiele (Berlin). 
Pp. 295-406, with Plate VI. 
The collection contains 19 species, of which seven are new. 
These species belong throughout to genera which are known 
from the Australian coasts, and may be assigned to the Indo- 
Pacific fauna, whilst there are no forms characteristic of the 
Antarctic seas. 
Onithochiton scholvieni, Thiele. — Rottnest (Green Island; and 
Koombana Bay off Bunbury. 
Lucilina dilecta, n. sp.- Sharks Bay (several stations). 
Acanthopleura spinigera, Sowerby. — Bernier Island, Cossack, and 
Turtle Island. 
„ ( Liolophura ) georgiana, 0 . and G. — Dongarra and 
Albany. 
Ischnochilov (. Hetevozona ) cariosus, Carpenter. — Koombana Bay 
off Bunbury. 
,, ustulatus, Reeve. — Rottnest, Koombana Bay off 
Bunbury, 
,, virgatus, Reeve. — Rottnest, Cockburn Sound and 
Alban} 7 
,, Ihomasi, Bednall. — Bunbury. 
,, albinus, n. sp, — Sharks Bay (Surf Point). 
,, indiff evens , n. sp. — ? Sharks Bay. 
CaUistochilon recens, n. sp. — Sharks Bay (Useless Inlet). 
Callochiton rufus, Ashby. — Sharks Bay (off Middle Bluff and 
Heirisson Prong). 
Plaxiphora albida, Blainville. — Cottesloe Beach. 
Acanthochites sueurii. Blainville. — Albany. 
,, bednaUi, Pilsbry. — Sharks Bay, and Oyster Harbour 
near Albany. 
,, deliciosus, n. sp. — Koombana Bay off Bunbury. 
Cryptoplax michaelseni, n. sp. — Sharks Bay (off Heirisson Prong). 
,, hartmeyeri, n. sp. — Sharks Bay (Surf Point). 
,, gunnii, Reeve. — North Fremantle. 
VOLUME III, Part 12. HIRUDINEA. 
By Dr. L. Johansson (Goteborg). 
Pp. 407-431, with ro figures in the text. 
The leeches in the collection were caught partly in fresh- 
water and partly in marine localities. They belong to five different 
species, two, if not three, of which are new, and one of which 
may prove to be the representative of a new genus. 
