130 PROCEEDINGS OF THE NATIONAL MUSEUM vol. ue 



Lebiasina bimaculata Valenciennes: CAS(IUM) 15171, three (of 30), SL 57.5- 

 60.9 mm., Peru, Piura, January 11, 1919, Carl H. Eigenmann. 



Nannostomus beckfordi Giinther: SU 50258, six (of 44), SL 22.0-26.5 mm., origi- 

 nally from SU 50257, Brazil, State of Pard, south bank of Rio Amazonas, 

 "Rfo Urara," June 26, 1924, Carl Ternetz. 



Nannostomus digrammus Fowler: SU 50249, two, SL 16.3-19.4 mm., Brazil, 

 State of Amazonas, Manaos [Manaus], 1865, Louis Agassiz; SU 50251, three, 

 SL 18.0-22.8 mm., Brazil, State of Amazonas, Igarapd do Mai Joana, a tribu- 

 tary of the Rio Negro near Manaos [Manaus], December 25, 1924, Carl Ternetz. 



Nannostomus espei (Meinken) : ANSP 73873, one, SL?, British Guiana, an un- 

 named creek, tributary to the Paruma River, itself tributary to the Mazaruni 

 River via the Kamarang River, Pakaraima Mountain region of western British 

 Guiana, 1955, Louis Chung; SU 50252, one, SL 25.0 mm., aquarium specimen, 

 locality data unknown but probably the same as ANSP 73873. 



Nannostomus marginatus Eigenmann: SU 54119, three (of 32), SL 19.0-21.5 mm., 

 originally from SU 50219, Brazil, State of Pard, Lagoa Grande [probably Lagoa 

 Grande do Javari about 34 mi. northwest of Santar^m], August 20, 1929, Carl 

 Ternetz. 



Nannostomus trifasciatus Steindachner: SU 50223, one, SL 29.5 mm., British 

 Guiana, no other data; SU 54130, one (of two), SL 31.5 mm., aquarium speci- 

 men, "from the Amazon," sent to G. S. Myers by Frederick Stoye. 



Piabucina festae Boulenger: SU 51068, four (of 12), SL 60.5-71.5 mm., Colombia, 

 Rio Truand6, a western tributary of the Ri'o Atrato near Rio Sucio, 1913, 

 C. E. Wilson; USNM 167795, one (of six), SL 70.0 mm., same data as preceding. 



Piabucina panamensis Gill: USNM 109234, two (of seven), SL 77.7-84.0 mm., 

 Panama, Cativd,, March 2, 1937, S. F. Hildebrand. 



Piabucina erythrinoides Valenciennes: USNM 121400, three (of 27), SL 35.1-101 

 mm., Rio Chama at Estanques, State of M^rida, Venezuela, April 3, 1942, 

 L. P. Schultz. 



Piabucina species?: USNM 123796, two (of six), SL 64.1-67.3 mm., Colombia, 

 Rio Magdalena, Cecil Miles. 



Poecilobrycon eques (Steindachner): SU 50247, two (of five), SL 28.5-30.0 mm., 

 originally from SU 50229, Brazil, State of Amazonas, Sao Gabriel [Uaupes], 

 Rio Negro, rockpools below rapids, February 1, 1925, Carl Ternetz; SU 50224, 

 three, SL 25.8-32.5 mm., aquarium specimens, no other data. 



Poecilobrycon harrisoni Eigenmann: SU 50246, one, SL 29.5 mm., originally from 

 SU 50245, British Guiana, Georgetown, collector unknown; SU 50245, one 

 (10 unstained), SL 36.4 mm., British Guiana, Georgetown; SU 50244, six, 

 SL 9.5-21.0 mm., aquarium specimens, reared by S. Weitzman. 



Poecilobrycon unifasciatus (Steindachner): CAS(IUM) 11704, one (of 10), SL 

 33.0 mm., British Guiana, Rockstone sandbank, Essequibo River, 1908, 

 C. H. Eigenmann; SU 50268, two, SL 27.8-30.4 mm., aquarium specimens, 

 no other data. 



Pyrrhulina filamentosa Valenciennes: CAS(IUM) 12186, four, SL 14.7-20.2 mm., 

 British Guiana, Aruka River, 1908, C. H. Eigenmann. 



Pyrrhulina semifasciata Steindachner: CAS(IUM) 12172, one, SL 58.1 mm., 

 British Guiana, Holmia Creek, 1908, C, H. Eigenmann. 



Pyrrhulina spilota Weitzman: USNM 197523, two (of 19), SL 41.5-50.4 mm., 

 first generation descendants of holotype and paratype. 



Pyrrhulina vittata Regan: USNM 197524, SL 26.0 mm., aquarium specimen, 

 locality unknown. 



