PLANAXIMJ. 



193 



18. Planaxis mollis. 



Planaxis mollis, Sowerby, Genera Shells, I, fig. 2, 1824, Bab.1 ; = Buccinum 

 brasilianum, Lam. Hist., VII, 1822 [misnomer'] ; = Buccinum Icevigatum, 

 Wood, Ind. Test. Sup. 1828 ; fide Smith var. = PL fulva, A. Adams, 

 P. Zool. S. 1851, p. 271, Swan River; var. = P. pigra, Forbes, P. Zool. 

 8. 1850, Pitcairn Island. 



9 Port Jackson, &c.; coll. Dr. J. C. Cox and ex c. Asiatic Soc. Bengal. 

 3 Australia; ex c. Dr. F. Stoliczka. 



Genus QUOYIA, Deshayes. 



Enc. Meth. II, 1830 [sine descr.~\ type Planaxis decollata, Qttoy, and of 

 Gray, Syn. Brit. Mus., 1840 ; = Fissilabria, Brown, Edinb. Journ. N. H. 

 1836 ; = Quoya, Deshayes, Enc. Meth., Ill, 1843 j = Leucostoma, Swain- 

 son, Treat. Malac., 1840. 



1. Quoyia decollata. 



Planaxis decollata, Quay, Voy. Astrolabe, 1832, New Guinea; Caroline 

 Islands fide v. Martens, New Caledonia, fide Fischer, and Yap, fide 

 Schmeltz. 



1 Moluccas; ex c. Dr. H. Dohrn. 



1 Caroline I. ; ex c. C. F. Ancey, Esq. 



Genus HOLCOSTOMA, H. and A. Adams. 



P. Zool. S. 1853 and Gen. Moll. I, p. 324, 1854, type H. piligerum, Philippi, 

 [from Mascarene Islands, fide Deshayes, Sfc.']. 



I have never been able to obtain a specimen of this interest- 

 ing genus. 



8. Family MELANIID^E, Orbigny. 



Moll. Canar. 1837 ; = Melaniadce, Gray, 1840. 



Sub-family CERIPHASIN^l, Gill. 



P.Acad.Nat. Sci. Philad. 1863 [_Febr.~] -,= Family Strepomatida, Halde- 

 man, I. c. \_Sept .] 



I am unable to agree with Messrs. Brot and Tryon in accept- 

 ing Haldeman's name in preference to that of Gill's. 



