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6. ISCHNOCHITON CONTRACTUS, Reeve. Soy 
_ Chiton contractus, Reeve, Conch: Icon., sp. 78; Pilsbry, 
Man. Conch., ser. i., vol. xiv., p. 93. 
Chiton pallidus, Reeve, Conch. Icon., sp. 92; Pilsbry, Man. 
nch., ser. i., vol. xiv., p. 89. 
Fairly common in sheltered pools on the south coast. 
I have specimens from a cra aklyaay: 
. ISCHNOCHITON DECUSSATUS, ihe, 1847. aD ih 
ae decussatus, Reeve, Conch. Icon., sp. 107; Pilsbry, 
Man. Conch., ser. i., vol. xiv., p. 93. 
Chiton castus, Reeve, Conch. Icon., sp. 145. 
Lepidopleurus speciosus, H. Adams and Angas, Proc. Zool. 
Soc., 1864, p. 192. 
Two specimens were taken from buoys between Fremantle 
and Rottnest Island. Through the courtesy of the harbour- 
master we were permitted to be present at the lifting and 
cleaning of the buoys. JZ. decussatus is frequently found 
attached to such shells as Pinna inermis, Tate. 
8. [scunocurton prycuius, Pilsbry. FAITE 
Ischnochiton ptychius, Pilsbry, Nautilus, vol. viii., p. 53. 
Ischnochiton ptychius, Bednall, Proc. Mal. Soc., vol. ii., part 
4, April, 1897. 
One specimen of this rare chiton was taken from the 
anchor of a buoy between Fremantle and Rottnest Island. 
9. ISCHNOCHITON VIRGATUS, Reeve. PLGb 
Chiton virgatus, Reeve, ones Icon., sp. 192; Pilsbry, Man. Z 
Conch., ser. i., vol. xiv., p. 
Several specimens were pore at the Quarantine Station, 
Albany. Some of my specimens are of a creamy-white, which 
may possibly need to be placed under a new species. 
10. Iscunocuiron trHomAst, Bednall, 1896. FLeG 3-4, 
Ischnochiton Thomasi, Bednall, Proc. Mal. Soc., London, 
vol. ii., part 4, April, 1897. 
One diminutive specimen was dredged from 20 fathoms 
in Geographe Bay. 
1]. ISCHNOCHITON RESPLENDENS, Bednall and Matthews, 1, Ba 
1906. FA 
Tschnochiton resplendens, Bednall and Matthews, Proc. Mal. 
Soc., London, vol. vii., part 2, June, 1906. 
Several specimens of this beautiful chiton were taken at 
Yallingup, and an anterior valve at Ellenbrook, both south 
of Cape Naturaliste, and also at Albany. No specimen of 
its close ally 7. smaragdinus was seen. 
D 
