100 
22. CRYPTOPLAX sTRIATUS, Lamarck, 1819. 
Chitonellus striatus, Lam., An. S., Vert. vi., p. 317, 1819. 
pO ru pip la striatus, Pilsbry, Man. Conch., ser. i., vol. xv., 
p. 53. 
This chiton was taken at Hopetoun, on the south coast, 
and at Yallingup, on the west coast. Valves were obtained 
at Hopetoun, Ellenbrook, and dredged from 20 fathoms in 
Geographe Bay. I concur with Messrs. Gatliffe and Bastow, 
of Melbourne, in placing the hairy, seal-like specimens with 
striatus and the hairless one with var. Gunnii, of Reeve. 
93. CRYPTOPLAX STRIATUS, var. GUNNII, Reeve. Fee 
Chitonellus gunnii, Reeve, Conch. Icon., sp. 5. 
Cryptoplex striatus, var. Gunnii, Pilsbry, Man. Conch., ser. 
1., vol. xv., p. 54. 
Two specimens of this hairless species were found at 
Yallingup. They are both destitute of the “minute cal- 
careous spinelets’’ of striatus. The valves are narrower, and 
in both specimens of a deep-pink colour. When examined with 
striatus they seem worthy of being placed in a distinct 
species. 
Note.—The foregoing 23 species are all found in South 
Australia aters. . 
pies fue athe fsliees c 
24. BroLopnura GEORGIANUS, Quoy and Gaimard, 1835. © 
Chiton Georgianus, Quoy and Gaim., Voy. ‘‘Astrolabe,’’ Zool., 
1835, iii., p. 379, t. 75, f. 25-30. 
Liolophura Georgiana, Quoy and Gaim.; Pilsbry, Man. 
Conch., ser. i., vol. xiv., p. 241. 
Chiton Georgianus, Iredale, Proc. Mal. Soc., London, vol. 
ix., part 3, September, 1910. 
The type specimen was found by Quoy and Gaimard at. 
King George Sound, South-west Australia (Port du Rot- 
Georges). Mr. Iredale says that the type appears to have 
been lost. It is the commonest chiton in Western Australian 
waters. The specimens I have dissected correspond to Quoy 
and Gaimard’s description. It certainly is not a true chiton, | 
and I have not been able to discover the presence of eyes | 
necessary to place it among Liolophura; but this may be 
accounted for by the fact that it is exceedingly difficult to 
get a clean specimen. They are either very much eroded or 
covered with calcareous matter and other foreign growths. 
{ have been assisted in my nomenclature by Messrs. 
Hedley and Hull, of Sydney. 
L. georgiana was seen in every place visited, Esperance, 
Albany, Ellenbrook, Yallingup, and Rottnest Island. Some 
years ago one specimen with the girdle removed was sent to 
