SOUTH AMERICAN NEMATOGNATHI. 37 



Outer ventral ray greatly thickened and prolonged, reach- 

 ing beyond origin of anal fin. 



Pectorals higher than the ventrals, reaching beyond base 

 of the latter. 



Coloration uniform in adult (?), all the fins dusky; younj^ 

 with five dark cross bars which are most prominent on the 

 sides; all the fins more or less spotted; upper lip and bar- 

 bel dotted. 



20. Loricaria macromystax Giintber. 



21. Loricaria vetula Valencieuues. 



22. Loricaria lamina Giintber. 



23. Loricaria platystoma Guntber. 



§ Pseudoloricaria. 



24. Loricaria laeviuscula Ciav. & Val. 



Locabties: Kio Madeira: Eio Trombetas; Coary; Jutaby; Porto do 

 Moz; Mauaos; Fouteboa; Lake Jose Assu; Gurupa; Silva, Lake 

 Saraca; Xiugu; Tonautius; Hyavary. 



§ ? 



25. Loricaria brunnea Hancock. 



§ Pseudoliemiodon, 



26. Loricaria platycephala Kuer. 



§ Parahemiodon. 



27. Loricaria Uracantha Kner & Steindacbner. 



28. Loricaria Stubelii Steindacbner. 



Localities: Sautarem; Hyavary; Teflfe; Eio Preto; Rio Puty. 



29. Loricaria Spixii Steindacbner. 



Locabties: Santa Cruz, Rio Guenda; Sambaia; Mendez; Campos; 

 Muriabe; Sao Matbeos. 



30. Loricaria typus (Bleeker). 



Loricaria hemiodon Giintber. 



31. Loricaria phoxocephala sp uov. 



Types, No. 8030; two specimens .H-.lSm.to base of caudaL Coary. 

 L. Agassiz. 



This species can readily be distinguished by its pointed 

 snout and by the bars on its head. 



