7'7y^i^"rf^' 



Tetranematichthys can be distinguished from all other catfishes by a combination of 

 the features presented in the family diagnosis and the description oiAgeneiosus. 



Tetranematichthys quadrifilis (Kner) 



Figs. 1, 3, 15, 16, 18, 20, 24, 26-28,31, 36-37 



Table 7 



Ageneiosus quadrifilis Kner 1858a:442-443, fig. 29 (original description [type locality: 

 Rio Guapore, Brazil]), 



Tetranematichthys quadrifilis: Bleeker 1858:357 (replacement name for Ageneiosus 

 quadrifilis Kner); 1862:14 (diagnosis; designation of type species); 1863:108 

 (after 1862 account). Giinther 1864:192-193 (generic diagnosis; description). 

 Eigenmann and Eigenmann 1888:151 (citation); 1891:35 (citation). Gosline 

 1945:15 (citation). Miranda-Ribeu-o 1911:399-400 (in key; description). 

 Miranda-Ribeiro 1962:4 (museum records). Miranda-Ribeiro 1968a:2 

 (reference);1968b:l, 3, 6-8, 11 (sexual dimorphism; figure of male; 

 comparison with auchenipterids; placed in family Trachycoristidae); 1968c: 3- 

 5 (genus name misspelled as Tatranematichthys; sexual dimorphism; generic 

 synonymization with Trachycorystes). Britski 1972:24, 31, 33, 38, 46, 102-103 

 in part; synonymy; description; morphology; relationships). Bohlke 1980:151 

 (barbels). Sands 1984:15, 23 (mentioned in account of Gelanoglanis; specific 

 epithet misspelled guadrifilis). Ferraris 1988:3-4, 21, 29, 30, 37, 56, 58, 71, 



't 120-121, 151, figs. 5, 45 (morphology; diagnosis and phylogenetic 



relationships). Burgess 1989:285-286 (in key; illustration after Fowler 1951; 

 taxonomic remarks and brief description; citation). Curran 1989:412, 414, 

 418 (phylogenetic relationships). 



Diagnosis ;, 



As given above for the genus. Only one species of Tetranematichthys is 



presently known. ,>.*.*/'• 



> I 







. I 



■V- 



- : '^r^-- ':-•"'-- >;•'(■» \ 





