102 
W. MICHAE1 SEN : 
Tribe SIGMAT0M0NAX0NELLIDA 
Family DESMACIDONIDAE. 
Mycale cockburniana , n. sp. — Cockburn Sound (Port Royal). 
„ „ f. n. albanensis . — Oyster Harbour near Al- 
bany. 
,, raphidiophora , n. sp. — Oyster Harbour near Albany. 
,, fistulata, n. sp. — Sharks Bay (off Denham). 
„ ,, var. macrochela, n. — Sharks Bay (South Passage). 
,, phyUophila, n. sp. —Sharks Bay (off Denham and Frey- 
cinet Reach). 
,, macilenta, Bow. var. n. australis . — Sharks Bay (Middle 
Bluff and Freycinet Reach). 
„ isochela, n. sp. — Sharks Bay (Freycinet Estuary), Fre- 
mantle. 
„ pectinicola, n. sp. — Sharks Bay (several stations). 
,, obscura. Cart. — Sharks Bay (Freycinet Reach and off Dirk 
Hartog Island!. 
„ molucccnsis, Thiele, f. n. dichela , — Sharks Bay (Useless 
Inlet and South Passage). 
,, sulcata , n. sp. — Oyster Harbour, near Albany. 
,, „ nar. n. minor . — Cottesloe Beach. 
,, parasitica, Cart. var. n. arenosa . — Champion Bay off 
Geraldton. 
Esperiopsis hispidula. Ridl. var. n. ratnosa . — Sharks Bay (Frey- 
cinet Estuary). 
Desmacella ar eni fibrosa , n. sp. — Koombana Bay off Bunbury. 
Biernma niicroxa, n. sp.— Sharks Bay (Middle Bluff and Sunday 
Island) . 
Homoeodiclya staurophora , n. sp. — Geographe Bay, Middleton 
Beach near Albany. 
dendyi, Whit. — Fremantle, and Middleton Beach 
near Albany. 
Desmacidon plicatuni, n. sp.— Western Australia. 
,, psammodes, n. sp. — Sharks Bay (off Denham). 
Batzella inaequalis , n. sp. -Sharks Bay (off Denham) and Oyster 
Harbour near Albany. 
T.issodendoryx tuberosa. n. sp. — Sharks Bay (off Denham). 
Dendoricella schmidti, Ridl. — Cockburn Sound (Port Royal). 
Iotrochota baculifera, Ridl. var. n. minor . — Sharks Bay (several 
stations). 
„ acerala, Dendy, var. n. palmata.- — Fremantle. 
Tedania digiiata , O.S. — Sharks Bay, Busselton, and Middleton 
Beach near Albany. 
f . n. inermis . — Sharks Bay and Cockburn Sound. 
” ,, f. n. polyiyla. -Sharks Bay (Lagoon Point). 
,, rubicnnda, Lend! -Champion Bay off Geraldton. 
bispinata, n. sp. — Koombana Bay oil Bunbury, and 
Ovster Harbour near Albany. 
