ON NEW OR INSUFFICIENIT.Y DESCRIBED 



FISHES. 



By J. DOUGLAS OGILBY. 



Read before the Royal Society of Queensland, 

 July 30th, 1910. 



The following paper contains the descriptions of 2 

 new genera and 24 new species of fishes and of 10 species 

 which either have not previously been recorded from Aus- 

 tralian Seas or of which the original descriptions wore 

 insufficient or erroneous. Of the 34 species described, 

 all but 7 belong to the Queensland Fauna, the exceptions 

 being 



Dobo, Aru Iss. Croker I..., N.T. 



Sphyrcena altipinnis Hemipimelodus colcloughi 



Chmrodon vitta Brachirus aspilos 



Valenciennea aruensis Cynoglossus sindensis 



Coryzichthys guttulatus 



With the exception of 5, the types of the new species 

 are in the A.F.A.Q.* Museum, these being Xystodus han^ 

 fieldi, Megaprotodon macuUceps, Brachirus salinarum, and 

 B. breviceps in the Queensland Museum, and Spheroides 

 squamicauda in the collection of Mr. J. T. Jameson, of 

 Woody Point. 



The new genera here proposed are as follows : — 

 i. Xystodus ; fam. Synodidos'f ; type X. banfieldi. 

 ii. Chilias ; fam. Pteropsaridce ; tj^pe Percis stricticeps 



Be Vis. 



The new species are : — 

 1. Carcharias spenceri ; fam. Carchariidce ; Brisbane 

 River. 



* Amateur Fishermen's Association of Queensland. 



t By Art. 4 of " The International Code of Zoological Nomenclature " 

 we learn that " the name of a family is found by adding the ending ida to 

 the root of the name of its type genus." Plainly therefore the family name 

 should be written as above, not Synodontidce, as it is usually given. The 

 same rule applies to all similar generic names ending in such Greek deri- 

 vatives as odus, stoma, etc. 



