238 THE GENERA OF FISHES, PART II 



Dapalis Gistel, XI; type (Perca minuta Blainv.) (fossil). Name a substitute 

 for Smerdis Ag., 1833, preoccupied by Smerdis Leach, a genus of beetles. 



Peroptera Gistel, XI; said to be a fish and substituted for Pertoptera Gistel 

 "deleatur". I find no reference elsewhere to either name. 



Orthocolus Gistel XI ; type Salmo thymallus L. Substitute for Thymallus 

 Cuv., regarded as preoccupied by Thymallus Latr., 1803, a genus of beetles. 

 But the root word is different. In any event, Choregon Minding has priority 



Trompe Gistel, XI, 109; type (Sci^ena jaculatrix Pallas). Name an unexplained 

 substitute for Toxotes Cuv. 



Aphobus Gistel, XI; type (Trachidermis fasciatus Heckel). Name a substi- 

 tute for Trachidermis Heckel preoccupied as Trachyderma, etc., a synonym 

 of Centridermichthys Rich., 1844. 



Chaetichthys Gistel, XI; type (Trachinus trichodon Steller). Name a substitute 

 for Trichodon Cuv., deemed preoccupied by Trichoda and Trichodes, but 

 the root meaning is different. 



Lithulcus Gistel, XI; type (Trichopodus mentum Lac). Substitute for Tricho- 

 PODUS (Trichopus) (Lac.) Cuv. & Val. ; used also in botany. The oldest use 

 of the name in Zoology is that of Lacepede, 1802 (III, 125), a genus of 

 fishes already called (116) Osphronemus by the same author. 



Odonus Gistel, XI; type (Balistes nicer Lac). A substitute for Xenodon Riip- 

 pell, preoccupied. Odonus is prior to Erythrodon Riippell, 1852, and to 

 Pyrodon Kaup. If Zenodon Sw. (1839) is regarded as eligible, not as a 

 mere misprint, it will be preferred to Odonus. 



Eudynama Gistel, XIII, 108; orthotype (Sparus aurata L.). A substitute for 

 Chrysophrys Cuv. A synonym of Sparus L. as restricted. 



Eupnoea Gistel, 105; orthotype Plagiusa lactea Bon. (Symphurus nigrescens 

 Raf.). A synonym of Symphurus Raf. 



Melantha Gistel, 109; orthotype Sci^na nigra Gmelin, "die Seekrahe". A need- 

 less synonym of Corvina Cuv. 



Attilus Gistel, 109; orthotype Sci^na (cirrhosa L.), "der Schattenfisch". A 

 needless synonym of Umbrina Cuv. 



386. GUICHENOT (1848). Notice sur I'etablissement d'un nouveau genre de 



Chetodons (Megaprotodon). Rev. Zool.. XI. 

 Alphonse Guichenot. 

 Megaprotodon Guichenot 12; orthotype ChvETODON bifascialis Cuv. & Val. 



387. GUICHENOT (1848). Feces de Chile. (In Claudio Gay: Historia fisica y 



politica de Chile.) 

 Alphonse Guichenot. 

 Boxaodon (Guichenot) Gay, II, 208; orthotj'pe B. cyanescens Guich. An ally 



of Emmelichthys Rich. 

 Mendosoma (Guichenot) Gay, II, 212; logotype M. lineatum Guich. 

 Seriolella (Guichenot) Gay, II, 238; orthotype S. porosa Guich. 

 Merlus (Guichenot) Gay, II, 238; orthotype M. gayi Guich. Apparently a variant 

 of Merluccius, of which it is a synonym. 



388. HECKEL (1848). Eine neue Gattimg von Pcecilien mit rochenartigem 



Anklammerungs-Organe (Xiphophorus). Sitzb. Akad. Wiss. Wein. 



Johann Jakob Heckel. 

 Xiphophorus Heckel, I, 163 ; orthotype X. helleri Heckel. 



