30 PROCEEDINGS OF THE NATIONAL MUSEUM. vol. xxxm. 



No. 52088. One specimen, Atbara River, Egypt, Senflf-Expedition 

 collection. 



No. 52090. One specimen, Atbara River, Egypt, Senti'-Expedition 

 collection. 



No. 5208<). Two specimens, Atbara River, Egypt, Senff- Expedition 

 collection. 



No. 52087. Two specimens, Atbara River, Egypt, Senff-Expedition 

 collection. 



Bryconsethiops microstoma Giinther. 



No. •I'i.sl-l:. One specimen, Congo, Africa, collected by J. H. Camp. 



PHENACOGRAMMUS « Eigenmann, new genus. 



This genus differs from Mlcralestes as Tlerakjrnmrivim differs from 

 Astyanax^ and as Cheirodon differs from Odontostilhe^ etc. It is 

 Micralestes with an incomplete lateral line. 



Type. — Micralestes interrwptus Boulenger. 

 Brycon reinhardti Iiiitken. 



No. 44955. One specimen, Rio das Velhas, Brazil, presented by 

 Dr. Chr. Liitken. 



Brycon dentex Gunther. 



No. 39.909. One specimen, Nicaragua, collected by L. F. H. Birt. 



No. 22154. One specimen, Nicaragua, Bransford collection. 



No. 16884. Two specimens, Lake Nicaragua. 

 Brycon striatulus Kner. 



No. 5932. Two specimens in bad condition, Aspinwall, Panama, 

 collected by Russell. 

 Brycon hilarii (Cuvier and Valenciennes). 



No. 1613. One specimen, Paragua}^, Page collection. 



No. 1614. One specimen, Paraguaj^^, Page collection. 



Markiana nigripinnis (Perugia). 



No. 1627. One specimen, Paragua}^, Page collection. 

 Gasteropelecus sternicla Linnaeus. 



No. 34454. Para, Brazil, presented by J. C. Brevoort. 



The premaxillar}^ teeth in two of these specimens are strictly in a 

 single series, very regularly arranged and graduated; no teeth in the 

 maxillary. In two others the teeth are crowded, one on each side 

 being forced forward to form an anterior series. There are appar- 

 ently no maxillary teeth. 



No. 1602. Guiana, collected by J. Wyman. 



Premaxillary teeth in a single series; no maxillary teeth. 



« From (pEvac,^ deceptive; an(l ypa/j-iui], line. 



