but also in some of their habits. They are sociable like Stego- 
dyphus gregarius (Cam.br.) , and 5. sarasinovmn (Karsch.), and the 
genus Diguetia. A great number of individuals unite in order to 
spin in common, on the twigs of shrubs, a large dome of a very 
dense tissue, fixed and closed above, free below, and supported 
by diverging threads. There are in the collection several examples 
of these curious structures. 
According to a note of the collector, Latrodectus hasselti 
(Thorell) is feared throughout W.A. for its poison, and regarded 
just as dangerous as in the Eastern States of Australia and 
New Zealand. 
The few species known from W.A. and not represented in the 
present collection are enumerated together with those included 
therein. In consequence, the paper gives a complete list of the 
Western Australian spiders known at tire present time. 
Family AVICULARIIDAE. 
Sub-Family Ctenizinae. 
Cyrtauchenieae. 
Cantuaria hoggi, n. sp. — Eradu. 
Nemesieae. 
Proshermacha tigrina, n. gen., n. sp. — Jarrahdale, Serpentine. 
,, subarmaia, n. sp. — Wooroloo, Harvey. 
Sub-Family Barychelinae. 
Diplotheleae. 
Synothele michaelseni, n. gen,, n. sp. — Lion Mill. 
Barycheleae. 
Idiommata sp ? (I. blackwalli, Cambr. ?).— Mundaring Weir. 
Sub-Family Diplurinae. 
Palaevagrus fugax, n. gen., n. sp. — Geraldton, Lion Mill. 
Besides these species of the Family Aviculariidae, the follow- 
ing are known from Western Australia : — Missulena ( Eriodon ) 
granulosa (O. P. Cambr.), M. ( E .) crassa (P. O. Cambr.), ldiosoma 
sigillatum (O. P. Cambr.), Idiommata blackwalli (0. P. Cambr.), 
Missulena occatoria (Walcken) (teste Hogg), Anidiops manstridgei 
(Pocock), Eucyrtops latior (O. P. Cambr.), Sdenocosmia Stirling i 
(Hogg), Aganippe occidentalis (Hogg). (Note.— The author men- 
tions Stenigrocercus broomi (Hogg) as being a possible species of 
Palaevagrwm, n. gen., but without noting its locality. The writer 
concludes from the name of this species that it also may be 
Western Australian — from Broome. ?'; 
Family DICTYONIDAE. 
Amaurobius robustus (L. Koch).— Northampton, Moora, Kalgoor- 
lie, Subiaco, East Fremantle, York, Cranbrook. 
„ microps, n. sp. — Bridgetown, Albany. 
