Theodoxis baconi. Reeve . — Neritina baconi, Reeve, Conch. 
Icon., IX., 1856, pi. 28, f. 127. Swan River. 
Theodoxis crepidularia, Lamarck . — Neritina crepidularia , 
Lamarck, An. s. vert., VI., 1822, p. 186; von Martens, Conch. Cab., 
II. , 1879, p. 37, pi. 7, f. 1-4 ; Smith, Journ. Linn. Soc. Zool., XVI., 
1881, p. 297. Swan River. 
Theoxodis dringi, Recluz . — Neritina dringi, Recluz, Proc. 
Zool. Soc., 1845, p. 121 ; Sowerby, Thes. Conch., II., 1849, p. 
521, pi. 115, f. 197, 198. Hanover Bay. 
Navicella entrecasteauii, Recluz, Rev. Zool. 1841, p. 380 ; 
Reeve, Conch. Icon., IX., 1856, pi. 8, f. 32 ; Gray, Proc. Zool. Soc., 
1867, p. 999. King George’s Sound (loc. doubtful). 
Family — Helicinidce. 
Helicina walkeri, Smith, Proc. Malac. Soc., I., 1894, p. 
99, pi. 7, f. 26, Queen’s, Baudin and Parry Islands ; Aphanoconia 
baudinensis, Wagner, Conch. Cab., I., 1909, p. 217, pi. 43, f. 11-13. 
Family — A cmaei dee. 
Patelloida alticostata, Angas . — Patella alticostata, Angas* 
Proc. Zool. Soc., 1865, p. 56, pi. 2, f. 11 ; Verco, Trans. Roy. Soc, 
S.A., XXXVI., 1912, p. 197. Esperance Bay, King George’s 
Sound, Ellensbrook, Yallingup, Bunbury, Rottnest. 
Patelloida calamus, Crosse and Fischer . — Patella calamus T 
Crosse and Fischer, Journ. de Conch. 1864, p. 348 and 1865, pi. 3, 
f. 7, 8 ; var polyactina, Verco, Trans. Roy. Soc., S.xA, XXXVI., 
1912, p. 199. King George’s Sound, Yallingup, Bunbury, Geographe 
Bay, Cottesloe, Rottnest Island, and Geraldton. 
Patelloida conoidea, Quoy and Gaimard, Zool. Astrolabe, 
III., 1834, p. 355, pi. 71, f. 5-7, King George’s Sound. Verco, 
Trans. Roy. Soc., S.A., XXXVI,, 1912, p. 198, Ellensbrook, Rott- 
nest Island. 
Patelloida elongata, Quoy and Gaimard, Zool. Astrolabe, 
III., 1834, p. 358, pi. 71, f. 12-14. King George’s Sound. 
Patelloida mixta, Reeve . — Patelloida flammea , Quoy and 
Gaimard, Zool. Astrolabe, III., 1834, p. 354, pi. 71, f. 15, 16 ; 
Verco, Trans. Roy. Soc., S.A., XXXVI., 1912, p. 198, King 
George’s Sound, Ellensbrook, Yallingup, Bunbury, and Rottnest 
Islands ; P. mixta , Reeve, Conch. Icon., VIII., 1855, pi. XXXIX., 
fig. 129 ; Hedley P.L.S. N.S.W., XXXIX., 1914, p. 713. 
Patelloida patellavecta, Verco, Trans. Roy. Soc., S.A., 
XXXVI., 1912, p. 195, pi. 15, f. 5-7. Cape Naturaliste, King 
George’s Sound, Ellensbrook and Yallingup. 
Patelloida punctata, Quoy and Gaimard, Zool. Astrolabe, 
III., 1834, p. 365, pi. 71, f. 40-42 ; Verco. Trans. Roy. Soc., S.A., 
XXX., 1906, p. 214. King George’s Sound. 
Patelloida septiformis, Quoy and Gaimard, Zool. Astro- 
labe, III., 1834, p. 362, pi. 71, f. 43-44. King George’s Sound ; 
