708 STUDIES ON AUSTRALIAN MOLLUSCA. 



with the hinge. The following in chronological order are the 

 names applied to it : — 



1. Gnaihodon parvum, Petit, Journ. de Conch, iv. 1853, p. 358, 



pi. xiii., if. 9, 10; Sowerby, Conch. Icon, xix, 1873, pi. i., 

 f. 6. Moreton Bay, Q. 



2. Mactra rostrala^ Reeve (not of Spengler, 1802, nor of Philippi, 



1846), Conch. Icon, viii., 1854, pi. xix., f. 104. Collected by 

 F. Strange in Moreton Bay, Q. Dall unites (Proc. U.S. Nat. 

 Mus, xvii., p. 106) this with the foregoing as Spisula jyctrva, 

 Petit. 



3. Mactra corbidoides, Deshayes, Proc. Zool. Soc. 1854, p. 63; 



Reeve, Conch. Icon, viii., pi. xix , f. 103. Locality unknown. 



4. Spisula cretacea, Angas, Proc. Zool. Soc. 1867, p. 909, pi. xliv., 



f. 6. Port Stephens, N.S.W. 



5. Spisula 2?ioducta, Angas, Proc. Zool. Soc. 1867, p. 909, pi. xliv., 



f. 7. Port Jackson, N.S.W. 



6. Mactra fluviatilisy Angas, Proc. Zool. Soc. 1871, p. 20, pi. i., 



f. 31. Hawkesbury River, N.S.W. On the authority of 

 Brazier these three species of Angas are united by White- 

 legge (Journ. Roy. Soc. N.S. Wales, xxiii., 1889 (1890), 

 p. 236). 



EXPLANATION OF PLATE XXXIV. 



Fig. I. — Interior of left valve of Modiolaria splendida, Dunker. 

 Figs. 2, 3. — Hinges of Sinsula ixirva, Petit. 



Figs. 4, 5, 6. — Different aspects and hinge of Theora fragilis, A. Adams. 

 Fig. 7. — Operculum of Turho exquisitus, Angas, 

 Fig. 8. — Flammulina spaldingi var. ccuinata, Brazier. 

 Figs. 9, 10, II. — Various aspects of Flanmiulina spaldingi, Brazier. 

 Fig. 12. — Tornatellina eucharis, Brazier. 

 Fig. 13. — Tornatellina petterdi, Brazier. 

 Fig. 14. — Tornatellina mastersi, Brazier. 



Figs. 15, 16, 17. — Various aspects of Bitropis macleayi, Brazier. 

 Fig. 18. — Marimila patiila, Lowe. 



Figs. 19, 20. — Shell and operculum of Amauropsis vioerchi, Adams & Angas. 

 Fig. 21. — Scalaria ballinensis. Smith. 



Figs. 22, 23, 24. — Different aspects and sculpture of Fhiline trapezia, Hedley. 

 All enlarged and to various proportions. 



