434 LITTLE-KNOWN MOLLUSCA FROM POLYNESIA AND AUSTRALIA, 



This species I have compared with actual specimens from 

 Tasmania, and not descriptions and figures only, and they agree 

 in every detail with the Port Jackson shells. The other species, 

 Mylitta Deshayesii, D'Orb. and Recluz, has been found in South 

 Australia and Tasmania, and I have received it from Cape Riche, 

 King George's Sound ; found in shell sand, 



8. MoDiOLA ARBORESCENS, Chemnitz. 



Mytilus a7'borescens, Chemnitz, Conch. CaVj. Vol. xi. p. 251, pi. 



198, figs. 2016, 2017, 1795. 

 Modiola picta, Lamarck, Anim. sans Vert. Vol. vi. part 1, p. 112, 



No. 8, 1819 ; Encyclopedie, pi. ccxxl fig. 2. 

 Mytilus arborescens, Dillwyn, Catalogue of Recent Shells, Vol. i. 



p. 306, No. 14, 1817. 

 Modiola picta, Deshayes ; Lamarck, Anim. sans Vert. Vol. vii. 



p. 21, No. 8, 1836. 

 Mytilus pictus, Deshayes, Encycl. Meth. Vers. Vol. ii. p. 569, 



No. 34. 

 Modiola picta, Sowerby, Genera of Recent and Fossil Shells, Vol. 



ii. pi. xcix. fig. 1. 

 Modiola arborescens, Hanley, Catalogue of Recent Bivalve Shells, 



p. 237, 1843. 

 Modiola arborescens, Jay, Catalogue of Shells, 4th edition, p. 76, 



No. 2149, 1850. 

 Modiola arborescens, Hanley ; Wood, Index Testaceologicus, 2nd 



edition, No. ^, p. 67, species 13, pi. xn. fig. 13, 1855. 

 Modiola arborescens. Reeve, Conch. Icon. Vol. x. pi. vi. fig. 30, 



1857. 

 Perna arborescens, H. and A. Adams, Genera of Recent Mollusca, 



Vol. ii. part 32, p. 516, 1857. 

 Modiola arborescens, Tenison- Woods, Census of the Marine Shells 



of Tasmania, Proc. Royal Soc. Tasmania, p. 55, 1877. 

 Modiola arborescens, Clessin, Conch. Cab. 2nd edition, Kuster, 



part 8, p. 100, pi. xxix. fig. 10, 1887. 

 Modiola arborescens, Tate, Trans. Royal Soc. South Australia, 



Vol. xiv. p. 268, 1890-91. 



