338 STUDIES ON AUSTRALIAN MOLLUSCA, XL, 



I sent examples of the latter to London for comparison. Mr. G. 

 C. Robson replies: "The sculpture of Adams' species is more 

 strongly marked than that of yours, but whatever differences 

 there are, I do not hold them to be sufficient to separate the 

 species upon." Under these circumstances, I withdraw the 

 name I proposed. 



EXPLANATION OF PLATES XVI. -XIX. 



Plate xvi. 

 Figs. 1,2,3 — Nucula consobrina Ad. & Angas, from the type. 

 Figs. 4,5,6. — Nucula simplex A. Adams, from the type. 

 Figs. 7, 8, 9. — Nucula cumingii Hinds, from the type of Nucula loringi Ad. 



& Angas. 

 Fig. 10. — Myrtaea veuusta Philippi, from the type of Lucina strangei A. 



Adams. 

 Figs 11,12,13,14,15. — Joannisiella jyioretonensis Deshayes, from the type of 



(Jyrenella moretonensis. 

 Figs. 16,17,18,19. — Solecardia strangei Deshayes, from the type of Scintilla 



strangei. 

 Figs.20,21,22. — Cardium dionamm Sowerh} 7 , from the type of Cardium 



productum Deshayes. 

 Figs. 23,24. — Dosinia tenella Romer, from the type. 

 Figs. 25, 26. — Venerupis planicosta Desha} r es, from the type. 

 Figs. 27,28. — Venerupis sub decussat a Deshayes, from the British Museum 



example. 



Plate xvii. 

 Figs. 29, 30, 31, 32,33.— Semele ada Adams & Angas, from the type. 

 Figs. 34, 35, 36, 37. — Semele exarata Adams & Reeve, from a British Museum 



example. 

 Figs. 38,39. — Donax striatellus Deshayes, from the British Museum example. 

 Figs. 40, 41, 42,43,44. — Cryptomya elliptica A. Adams, from the type of 



Sphcenia elliptica. 

 Fig. 45. — Clanadus jucundus Gould, from the British Museum example. 

 FMg.46.— Clanculus conspersus A. Adams, from a British Museum example. 

 Fig. 47- — Calliostoma punctidosus A. Adams, from a British Museum 



example. 

 Fig.48. — Gantharidus cingidatus A. Adams, from the type of Leiopyrga 



cingxdata. 

 Fig.49. — Cantharidus pallidulus A. Adams, from the type. 

 Fit'. 50. — Leptothyra crassilirata Preston, from the type. 

 Fig. 51. — Littoridina gunnii Frauenfeld, from a specimen of Hydrobia 



gunnii in the British Museum. 



