170 EIGENMANN AND WARD 



a. Snout less than 3 in head; spotted artedl^* iS. 



aa. Snout 3 or more in head ; sides with cross-bands. 



b. Head slender, compressed, conic: upper profile straight ; length 

 of head equaling depth; eye about 2 in snout; A. 160 to 260. 



b)'evlrosti-is^ 19. 



18. HYPOPOMUS ARTEDI (Kaup). 



Seba, III, tab. 32, fig. 2. 



Rhamphichthys artedlYs.?i\x^^^ K.^0^.^ 128, 1856, Mona ; Giinther, 

 Cat., VIII, 6, 1870. 



Brachyrhamphichthys artedi\ Eigenmann & Eigenmann, Proc. 

 U. S. Nat Mus., XIV, 1891, 62. 



Rhamphichthys miillcri Kaup, Apod., 129, 1856, French Gui- 

 ana; Giinther, Cat., VIII, 6, 1870. 



Hypopomiis mulleri^ Gill, Proc. Ac. Nat. Sci. Phila. 1864, 152. 



Brachyrhamphichthys miiUeri^ Eigenmann & Eigenmann, Proc. 

 U. S. Nat Mus., XIV, 1891, 62. 

 Habitat : French Guiana. 



19. HYPOPOMUS BREVIROSTRIS (Steindachner). 



Rhamphichthys brevirosti'is Steindachner, Die Gymnotidce, 6, 



pi. II, fig. 2; 1868, Guapore; Giinther, Cat., VIII, 6, 1S70; 



Steindachner, Fisch-f. Cauca and Guayaquil, 37, 1880 (San- 



tarem ; Cauca, Rio Guapore), Perugia, Ann. Mus. Civico 



Storia Nat. Genova, ser. 2, vol. X, 56, 1891 (Central Chaco) ; 



Boulenger, Trans. Zool. Soc, XIV, 1896,38 (Descalvados). 

 Brachyrhaniphichthys hrevirostris^ Eigenmann & Eigenmann, 



Proc. U. S. Nat. Mus., XIV, 1891, 62; Eigenmann, Ann. 



N. Y. Ac. Sci., VII, 1894, 625 (Lower Amazon and Itaituba 



on the Tocantins). 

 Hypopomiis hrevirostris^ Eigenmann & Kennedy, Proc. Ac. 



Nat. Sci. Phila. 1903, 530 (Campo Grande; Arroyo Cha- 



galalina). 



Habitat : Cauca, Amazon and tributaries, Paraguay. 



* Tlie nominal species artedi \\x\<\ nitillcri a.rt distinguished as follows : 



tYellowish brown, marked with darker; fins without markings artedi. 



tt Upper side of head and back uniform black; lower part of sides of head and 

 body with numerous spots; fins black, with brown ravs . . .muUcri. 



