144 



aculeafa, Lamarck, 1819; in Tate and May's Tasmanian Census, 

 Proc. Lin. Soc. of N.S.W., 1901, pt. 3, p. 379. 



It ranges alive from the shore (Henley Beach, ''with a 

 purple mucus," A. Zietz), to 12 fathoms Porpoise Head, and 

 22 fathoms Backstairs Passage; and dead in perfect condi- 

 tion in 104 fathoms 35 miles S.W. of Neptune Islands. 



Scala jukesiana, Forbes. 



Scalaila jukesiana, Forbes, appendix to Vov. of ''Rattle- 

 snake," vol. ii., p. 383, t. 3, f. 7, 1852; Trvon, Man. Conch., vol. 

 ix., p. 66, pi. xiv., f. 20, 1887; No. 194, Handlist of Aq. Moll., 

 Adcock, 1893. ScaJaria delicatula, Crosse and Fischer, Journ. de 

 Conch., 1864, p. 347; 1865, p. 42, t. 3, f. 9, 10; type locality, St. 

 Vincent Gulf, S. Aust. ; Tryon, Man. Conch ix., p. 69, pi. 14, f. 

 39, 1887; habitat, New Caledonia. 



Tryon defines it as "'very minutely spirally striated," but 

 Crosse says "the intervals between the ribs are smooth." No 

 fine spiral lines could be detected by me on the two shells in 

 the British Museum, labelled ''S. delicatula, Cr. and F., S. 

 Aust., G. F. Angas," on th© back of the tablet being "S. 

 Aust. and New Zealand. Type." 



Pritchard and Gatliff, in Cat. of Marine Shells of Victoria, 

 Proc. Roy. Soc. of Vict., 1900, vol. xiii. (N.S.) pt. i., p, 143, 

 give ;S'. co?isors, Crosse and Fischer, Journ. de Conch., 1864, 

 p. 347; 1865, p. 43, pi. iii., f. 11, 12, as a synonym; but the 

 type shell in the Brit. Mus. shows a well-marked peripheral 

 keel, which none of our S. Australian ;S'. jukesiana possesses. 



Scala friabilis, Sowerby, jnn. 



ScaJaria friabilis. Sow., Proc. Zool. Soc, Lond, 1844, p. 27; 

 Thes. Conch., vol. i., p. 95, sp. 47, pi. xxxiii., f. 47, 1847; Tryon, 

 Man. Conch., vol. 9, p. 61, f. 75, 1887; No. 193, Handlist 'Aq. 

 Moll., Adcock, 1893. 



On the tablet in the Brit. Mus. is "Swan River, Austra- 

 lia, on the sands, unique, Dr. Collie, type." Our shells are 

 identical with this; but one measures 22 mm., i.e., 6 mm. 

 longer than the type. Porpoise Head, 12 fathoms, 2 recent, 

 2 dead ; Backstairs Passage, 20 fathoms, 1 recent. 



Scala rubrolineata, Sowerby, jun. 



Scalaria rubrolineata,, Sow., The.s. Conch., vol. i., p. 91. sp. 

 33, pi. xxxiv., f. 83, 84, 1847; Trvon, Man. Concli., vol. ix., p. 

 60, pi. xii., f. 82-83, 1887. 



This species, misidentified, was listed in Handlist of Aq. 

 Moll, of S. Aust., Adcock, 1893, as No. 195, S. imperialis, Sby. 

 It is very rare. The Levens Beach, Spencer Gulf (W. T. Bed- 

 nail) ; St. Vincent Gulf (D. J. Adcock). 



