yr) 
Uv 
190 
Taken at the Glenelg River, Lacepede Bay, Edithburgh, 
St. Francis Island, and Le Hunte Bay, i.e., the whole length 
of the South Australian coast where examined. It was not 
found in Western Australia. 
Variations consist in the stoutness of the spiral cords, and 
especially in the prominence of the spiral ridge above the row 
of holes; this may be barely perceptible, or it may be so 
marked as to resemble 77. éricostalis—in fact, it is open to 
question whether 7. emme is not the eastern variant of the 
western 7. tricostalis. 
ye) ' 
Haliotis tricostalis, fSmarck. ot Sethcs 
Haliotis tricostalis, Lamarck, Anim. S. Vert., 1882, p. 218. 
This species was recorded for South Australia in Adcock’s 
Handlist of Aquatic Mollusca, South Australia, 1893, p. 9, 
No. 373, as Haliotis (Padollus) rubicundus, Montfort, with 
tricostalis, Lamarck ; canaliculata, Schbt. and Wag. ; scalaris, 
Leach, as synonyms. I have not taken it in South Australia, 
and do not know that it has been collected here. Some of our 
examples of H. emma, Gray, approach it. Swainson, in 
Proc. Roy. Soc., Tasmania, 1855, p. 48, speaking of Reeve’s 
Mon. of the genus in Conch. Icon., says, “H. tricostatus 
(meaning tricostalis), H. pulcherrima, Auct., and our Haliotis 
costata, here erroneously called H. emma,” evidently regard- 
ing all four as conspecific; whereas Pilsbry makes tricostalis, 
pulcherrima, costata (a synonym of rugosoplicata) and emme 
four distinct species. 
Haliotis parva, Linne. Med S oder 
Haliotis parva, Linne,, Sys. Nat., vol. x., p. 780; Gmelin, 
Sys. Nat., 1789, Tome i., vol. vi., p. 3689, No. 7; Pilsbry, Tryon, 
an. Conch., 1890, vol. xii., p. 120, pl. xiv., fig. 74; Adcock, 
Handlist Aquatic Moll., South Australia, 1893, p. 9, No. 374. 
Adcock records it for South Australia, but no authentic 
specimen from our shores is known. 
Haliotis pulcherrima, Martyn. 5.67 “o@cg 
_ Haliotis pulcherrima, Martyn, Univ. Conch., pl. Isxii., 
Pilsbry, Tryon, Man. Conch., 1893, vol. xii., p. 124, pl. xiii., fig. 
ue Adcock, Handlist Aquatic Moll., South Australia, 1893, p. 9, 
0. : 
Pilsbry gives South Australia as one of its localities, and 
Adcock records it, but no authentic specimen from our shores 
is known. 
Hallotis tugosoeplicatay. Chemniter aa Sebed 
Haliotis rugoso-plicata, Chemnitz, Conch. Cab., vol. x., p. 311, 
figs. ar ape 1604a; Pilsbry, 1890, vol. xii., p. 110, aT xx 
gs. 12, 13. 
