154 
cruise of H.M.S. “Penguin,” Mr. J. J. Walker, then (1890-1891) 
Chief Engineer, collected vigorously. So.me of his gatherings were 
dealt with by Mr. E. A. Smith. On behalf of the Hamburg Museum, 
Drs. Michaelsen and Hartmeyer travelled through the State in 1905. 
Part of their mollusca has been published, but most of it is still 
unfinished. In 1910-11 Dr. J. C. Yerco made important explora- 
tions in conchology in the south of the State. No previous excur- 
sion added so much to our knowledge. Mr. T. H. Haynes and Mr. 
P. D. Montague, who were interested in the Monte Bello Islands, 
recently provided Messrs. H. B. Preston, G. C. Robson, and T. 
Iredale with .material for various papers. 
SUB-KINGDOM— MOLLUSCA. 
CLASS— PELECYPODA. 
Order — Prionodesmacea. 
Family — Nuculida. 
Nucula M’andrewii, Hanley, Proc. Zool. Soc., 1860, p. 441 ; 
Sowerby, Conch. Icon., XVIII., 1870, PI. 4, f. *28 ; Von Marten s, 
Forsch. Gazelle, 1889, p. 185. 45-60 fath. Dirk Hartog. 
Nucula micans, Angas, Proc. Zool. Soc., 1878, p. 864, PI. 
54, f. 16 ; Verco. Trans. Roy. Soc., S.A., XXXVI., 1912, p. 205. 
Geraldton. 
Family — A rcidce. 
Arca fusca, Bruguiere, Enc. Meth., Vers. I., 1789, p. 192 , 
Reeve, Conch. Icon., II., 1844, pi. 12, f. 82 ; Brazier, P.L.S., N.S.W.. 
IX., 1884, p. 802. Cossack ; Iredale, Proc. Zool. Soc. 1914, p. 666; 
Monte Bello Is. 
Arca domingensis, Lamarck, An. s. vert., VI., 1819, p. 40 ; 
A. divaricata , Reeve, Conch. Icon., II., 1844, pi. 16, f. 108 ; Verco, 
Trans. Roy. Soc., S.A., XXXVI., 1912, p. 205 ; Geraldton. 
Arca imbricata, Bruguiere, Ency. Meth., Vers. I., 1792, p. 
98 ; Reeve, Conch. Icon., II., 1844, pi. 11, f. 73 ; A. tetragona and A. 
umbonata , Menke, Moll. Nov. HolL, 1843, p. 37. N.W. Australia. 
Arca indica, Gmelin. Syst. Nat., XIII., 1790, p. 3312 ; 
Reeve, Conch. Icon., II., 1844, pi. 9, f. 56 ; Menke, Moll. Nov. HolL, 
1843, p. 37. N.W. Australia. 
Arca navicularis, Bruguiere, Ency. Meth., Vers., I., 1792. 
p. 99 ; Reeve, Conch. Icon., II., 1844, pi. 11, f. 70; Verco. Trans, 
Roy. Soc. S.A., XXXVI., 1912, p. 205. Geraldton. 
Arca tortuosa, Linne, Syst. Nat., X., 1758, p. 693 ; Reeve, 
Conch. Icon., II., 1844, pi. 13, f. 86 ; Von. Martens, Forsch. Gazelle, 
III., 1889, p. 191. Mermaid Strait. 
Glycymeris radians, Lamarck, — Pectunculus radiano , 
Lamarck, An. s. vert., VI., 1819, p. 54 ; Reeve, Conch. Icon., I., 
1843, pi. 9, f. 50 ; Menke, Moll. Nov. Holl., 1843, p. 37. Wood- 
man’s Point"; Von Martens, Forsch. Gazelle, III., 1888, p. 186. 
Dirk Hartog ; Verco, Trans. Roy. Soc. S.A., XXXVI., 1912, p. 
205. Geraldton. 
