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Fitzro})ia lineata 



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| | WALTER LANKfOT BRIKfD, F. Z. 5. 



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Fitzroyia lineata 



Argentina 



There seems to be an interesting bit 

 of history concerning" the subject of 

 the present paper. It was originally de- 

 scribed by Jenyns, in 1842, as Lebias 

 lineata. On the next page of his work 

 he describes a species which he calls 

 Lebias multidentata. Both descrip- 

 tions, refer to the same fish, the multi- 

 ple naming being probably due to fail- 

 ure to associate the sexes. Note that 

 lineata is the oldest name, though only 



by the length of time it took the composi- 

 tor to set about a page of type ! Now 

 the fish was not a Lebias, and, when Gun- 

 ther was working on his catalogue of 

 the fishes of the British Museum (pub- 

 lished 1866), he found that it could not 

 be properly assigned to any genus then 

 known. He thereupon created the genus 

 Fitzroyia for L. multidentata and Jenyn- 

 sia for L. lineata. Fitzroyia precedes Jen- 

 ynsia by a few pages and is older by a 



