336 PROCEEDINGS OF IHE ACADEMY OF [DeC, 



Xenodon, instead of Erythrodon. The question of Zenodon versus 

 Odonus may be left for later decision. 



PIRENE, p. IX, replaces Dasajllus Cuvier, on account of the 

 earlier .Z)asc?7ZMS. But Dascyllus has been sometimes spelled Das- 

 cillus. 



PERIURGUS, p. X, replaces Microps Ag. (fossil). 



PROSCINETES, p. X, replaces Microdon Ag. (fossil); this is 

 prior to Polypsephis Hay, 1899, also a substitute for Microdon. 



SECUTOR, p. IX, replaces Devezimentum Fowler. Secutor is 

 apparently intended as a substitute for Equula, but Gistel indicates 

 as his type Equula insidiator. He says: "Equula (E. insidiator, 

 Fisch.) Secutor N." Centrogaster equula Gmelin is, however, the 

 tautotype of Equula Cuv., which is a synonym of Leiognathus Lac. 

 Secutor {Deveximentu7n) is tangibly different from Leiognathus 

 {Scomber edentulus Bloch) as a genus or sub-genus. 



STREPHON replaces Brontes C. & V. if distinct from Ar„es 

 C. & V. 



STROTES replaces Platysomus Ag. (fossil). 



In case names differing from older ones only in gender or some 

 minor point in spelling are to be rejected as preoccupied, the follow- 

 ing additional names of Gistel would become tenable: 



ANALITHIS, p. X, intended to replace Platyrhina M. & H. on 

 account of the prior Platyrhinus. This antedates Garman's sub- 

 stitute name of Discobatus. 



ALAZON, p. X, intended to replace Poecilia, on account of the 

 earlier Pcecilus. 



ENGLOTTOGASTER, p. IX, to replace Oreinus on account of 

 Oreina. But the genus Oreinus is of doubtful validity. 



EURO, p. IX, to replace Eugnathus Ag., (fossil) on account of the 

 prior Eugnatha. 



MYRMILLO, p. X, to replace Mustelus Cuv. on account of the 

 prior Mustela L. It is equivalent to Pleuracromylon Gill. 



PEDITES, p. IX, to replace Macropodus Lac, an ill-formed 

 name, on account of the prior Macropus. This may perhaps be 

 allowed. 



PRENES, to replace Scatophagus Cuv., on account of Scatophaga. 

 This is prior to Cantor's substitute name of Cacodoxus (1849). 



RHADAMISTA, p. VIII, is offered instead of Ctenodus (fossil) on 

 account of the prior Ctenodon. 



