PLANAXIDiE. 193 



18. Planaxis mollis. 



Elanaxis mollis, 5ower%, Genera Shells, I, Jiff, 2, 1S24, Hal.? ; = 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. = F. pigra, Forbes, P. Zool. 

 S. 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 descrj] type Planaxis decollata, Qiioy, and of 

 Gray, Syn. Brit. Mus., 1840 j = Fissilabria, Brown, Fdinb. Journ. N. H. 

 1836 ;=^Quoya, Deshayes, Enc. Meth., Ill, 1843 s = Leucostoma, Sivain- 

 son. Treat. Malac, 1840. 



1. Quoyia decollata. 



Planaxis decollata, Qtioy, Voy. Astrolabe, 1832, Neio Guinea ; Caroliue 

 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. if\ 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 MELANIIDiS, Orhigmj, 



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



Sub-family GEBIPHASINJE, Gill. 



P. Acad. Nat. Sci. Philad. 1863 [Febr.'] ; = Family Strepomatidce, 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. 



