163 



52. Acanthochites tatei, Torr and Ashby, 1898. 



Acanthochites tatei, Torr and Ashby, Trans. Roy. Soc, S.A., 

 1898, p. 219, pi. vii., figs. 7a-/. 



One specimen only of this beautiful little Acantho was 

 found at Middleton, Encounter Bay, by the writer. Mr. 

 Gabriel reported finding one at Torquay, Victoria. 



53. Acanthochites costatus, Adams and Angas, 1864. 



Acanthochites costatus, Adams and Angas, P.Z.S., 1864, p. 

 194; Angas, loc. cit., 1867, p. 224. 



Macandrellus costatus, Dall, Proc. U.S. Nat. Mus., i., p. 81, 

 f. 40 (dentition). 



Chiton (Macandrellus) costatus, E. A. Smith, Zool. Coll. 

 "Alert,'' p. 83, t. 6, fig. p. 



Acanthochites costatus, Adams and Angas : Pilsbry, Man. 

 Conch., ser. i., vol. xv., p. 40, pi. iii., fig. 74. 



I have seen two specimens of this chiton. It was taken 

 by Mr. Klem at Corney Point and named by Mr. Bednall. 

 One other very similar I have from St. Francis Island. This 

 shell agrees with the description in Pilsbry, loc. cit., with the 

 exception of the colour, which is of a pinkish hue, and the 

 posterior valve has not the "six more or less distinct radiating 

 ridges," as described by Smith from Coppinger's collection. 

 Mr. Klem's specimen has a hairy girdle. The St. Francis 

 Island specimen is fleshy. 



Fam. CRYPTOPLACID^E, Dall. 



54. Cryptoplax striatus, Lamarck, 1819. 



Ghitonellus striatus, Lamarck, An. S. Vert., vi., p. 317, 1819; 

 Desh. in Lam., vii.. pp. 481, 136; Sowerby, Genera of Shells, 

 t. 139, f. 4; Conch. Illustr., f. 62; Blainville, Diet. Sc. Nat., 

 xxxvi., p. 555, 1825; Reeve, Conch. Syst., ii., t. 135, f. 1; 

 Conch. Icon., f. 4. 



C. gunnii, Reeve, Conch. Icon., f. 5, 1847. 



C. rostratus, Reeve, loc. cit., f. 6. 



G. oculatus, Reeve, loc. cit., f. la, o (not of Quoy and Gaimard). 



Cryptoplax striata — gunni — rostrata, H. and A. Adams, Gen. 

 Rec. Moll., i., p. 484; Angas, P.Z.S., 1867, pp. 224, 225. 



Chiton (Chitonellus) striatus, Smith, Zool. Coll. "Alert," 

 p. 84. 



Cryptoplax striatus, Haddon, "Challenger" Report, xv., p. 

 39, t. 1, f. 9; t. 3, f. 9a-9m. 



C. striatus, Lamarck, var. gunnii, Reeve; Bednall, Proc. 

 Mai. Soc, London, vol. ii., part 4, April, 1897, p. 157; Torr, 

 Trans. Roy. Soc, S.A., 1911, p. 100. 



After examination of a large number of specimens from 

 many parts of Australia, I have satisfied myself that the 



