EIGENMANN: the freshwater fishes of BRITISH GUIANA 27 



107. Pygopristis fumarius Miiller & Troschel, Rupununi, Essequibo, and near-by swamps. 4-6 



p. 637. in. Pygopristis denticulatus (Cuvier). 



108. (SermsaZwo r/iombews Miiller & Troschel, p. Rupununi, Takutu, and near-l)y swamps. 12-14 



637. in. = Serrasalmo rhombeus (Linnaeus). 



109. Serrasalmo aureus Spix, p. 637. Essequibo and Rupununi. 6-8 in. = ? Serrasal- 



mo gymnogenys Gihither. 



110. Catoprion menlo Miiller & Troschel, p. Lake Amucu. 3—1 in. = Catoprion mento 



637. (Cuvier). 



111. Mj/Zefes rM^npinms Miiller & Troschel, p. Lower Essequibo. 4-6 in. = Myloplus rubri- 



637. pinnis (M. & T.). 



112. Myletes schomburgkii Miiller & Troschel, Rupununi, Takutu, Zuruma, as well as swamps of 



p. 637. the savannah. 4-6 in. = Myleuspacu (Schom- 



burgk). 



113. Mi/fetes AypsaMc/ieH Miiller & Troschel, p. Standing water, Tapacuma Lake. 3-4 in. = 



637. Metynnis hypsauchen (Miiller & Troschel). 



114. Myletes latus Miiller & Troschel, p. 638. Generally cUstributed in British Guiana. 10-12 in. 



= Myloplus rhomhoidalis (Cuvier). 



115. ilfj/Zefes asfen'as Miiller & Troschel, p. 638. Essequibo and Mazaruni near falls. 2 ft. = 



Myloplus aslerias (Miiller & Troschel). 



116. Myleus setiger Miiller & Troschel, p. 638. Essequibo near cataracts and in swift water. 10- 



12 in. = Myleus pacu (Schomburgk). 



117. Osteoglossum bicirrhosum Spix, p. 638. Still water of Rupununi, Takutu, Rio Branco and 



near-by swamps of savannah, and in Lake Amu- 

 cu. 3/2 ft- = Osteoglossum bicirrhosum Van- 

 delli. 



118. Arapaima gigas Miiller, p. 638. Generally distributed in streams of British Guiana. 



8-10 ft. = Arapaima gigas Cuvier. 



119. Megalops atlanticus Valenciennes, p. 639. Along the coast. 2 ft. = Tarpon atlanticus 



(Cuvier & Valenciennes). 



120. Flops saurus Linnseus, p. 639. Along the coast. 12-14 in. 



121. Engraulis thrissoides Miiller & Troschel, p. Cuyuni. 4-7 in. = Stolephorus spinifer {Cuvier 



639. & Valenciennes). 



122. Gijmnothorax ocellatus Agassiz, p. 638. Plantation drains and standing water. 3-4 ft. 



= Lycodontis ocellatus (Agassiz). 



123. Gymnotus electricus Linnaeus, p. 639. All fresh water of British Guiana. 7 ft. = Elec- 



trophorus electricus (Linnaeus). 



124. Sternopygus virescens Miiller & Troschel, Lake Amucu and forest streams. 18-20 in. = 



p. 639. Eigenmannia virescens (Valenciennes). 



125. .SteTOop2y(;MS Zmea/MS Muller & Troschel, p. Small forest brooks. 6-10 in. = Eigenmannia 



640. virescens (Valenciennes). 



126. RhamphichthysrostratusMiiller &Troschel, Demerara River. 4-6 ft. = Rhamphichthys ros- 



p 640. tratu^ (Linnaeus). 



