96 

Three specimens collected. It is common in New South 
Wales, rare in the Adelaidean and Western Australian 
regions. Specimens obtained at Rabbit Island (Albany), 
Elienbrook, and Rottnest Island. Colour markings resemble 
New South Wales species. Dark-red with splashes of orange 
and olive-green. About 20 valyes of a bright-pink colour, 
picked up at Ellenbrook, were evidently bleached specimens. 
of platessa. Zé: it ye 
- eo vey 
2. ISCHNOCHITON (STENOCHITON) JULOIDES, Ad. and Ang., F4 
1864. 
Stenochiton juloides, Ad. and Ang., Proc. Zool, Soc., 1864, 
p. 193; Pilsbry, Man. Conch., ser. 1., vol. xiv., p. 55. 
Two anterior valves and one median valve of this very 
slippery chiton were collected in shell-sand at Albany. 
3. IScHNocHITON cARiosus, Carpenter, 1873. FA 
Heterozona cariosa, Carpenter, MS.; Pilsbry, Man. Conch., 
ser. i., vol. xiv., p. 65. 
Numbers ai these were found at Rottnest Island, Albany, 
Hopetoun, Yallingup, and Ellenbrook (south of Cape Natu- 
raliste). The Western Australian specimens are much less ) 
coated with serpularia, etc., than the South Australian, 
species. oy | 
4, ISCHNOCHITON USTULATUS,. Reeve, 1847. Fp 
Chiton ustulatus, Reeve, Conch. Icon., sp. 102; Pilsbry, Man. ; 
Conch., ser. i., vol. xiv., p. 96. 
Several specimens were taken on the west coast at Rott- 
nest Island and Yallingup. None were found on the south 
coast. This chiton travels easily. One collector reports 
finding them in abundance at one spot in South Australia,, 
but they had all vanished a le ays, later. 
5. Leen ne rOnKt “ CRESPUS, Reaves 1847. Fhe 
Chiton crispus, Reeve, Conch. Icon., sp. 120; Pilsbry, Man. 
Conch., ser. i., vol. xiv., p. 89. 
pe ACTA TM IHaddoni, Pilsbry, Man. Conch., ser. i., vol. xiv., 
p- 
The specimens classified as Z. crispus are either so small 
or in such bad condition that I have hesitated in allowing 
crispus to appear at all. They were found only in the places : 
examined nearest to the South Australian border, Esperance 
and Hopetoun. It is interesting to find that a chiton so 
common in South Australia and Victoria should be so rare ~* 
in Western Australia. The specimens found closely resemble’ 
our South Australian 7. variegatus, which is probably only 
a variety of Z. crispus. 

a 
