li. STUUNOPTGUS. 7 



'3. STERNOPYGUS*. 



Sternopyg-us, MiilL <^- Trosr/i. liar. Ichthijol. iii. p. 13. 



Ciuflal fin none ; no trace of a dorsal fin. Both jaws with a patch 

 or band of small \'illiforra teeth ; a patch of minnto teeth on each 

 side of the palate. Anterior nostrils on the uppcrside of the head. 

 Snout short or of moderate length ; vent behind the orbit. 



Tropical America. 



1 . Sternopygus carapus. 

 Seha, iii. tab. 32. figs. 3-4. 



Gymnotus, sp., Grunoc. Zoophyl. no. 1G8 ; Mus. Ichth. i. p. 29. 



no. 72. 

 Gymnotus carapo, L. Si/st. Nat. i. p. 427 ; Sloch, v. p. 59, tab. 157. 



fig. 2 ; Grotior. Si/st. ed. Gr/a/, p. 22. 



niacrm-us, Iii. Schn. p. 522. 



Carapus macrourus, Cuv. Rcgm An. 



Stemopygus macrurus, Mull. ^- Trosck. I. c. p. 14 ; Kaup, Apod. 



p. 137 ; Steindachncr, Sitzysher. Ak. Wiss. Wicn, 18G8, Iviii. 



p. 259. 

 Carapus arenatus, Eyd. S,- Soul. Voy. Bonite, Zool. i. p. 210, pi. 8. 



fig. 2. 

 sanguinolentus, Casteln. An. Am. Sud, Poiss. p. 85, pi. 46. 



Sternopj'gus marcgravii, Bnnh. Vidensk. Meddel. natiirh. Foren. 

 Kjohenh. 1852 (1853) ; or Wiegm. Arch. 1854, p. 180. 



Orbit with a free cu'cular margin. Eye small, about one-fourth 

 of the length of the snout. Mouth of moderate width. Uniform 

 brown or black, a black blotch above the gill-opening ; sometimes 

 mottled with darker. Young examples sometimes with a yellow 

 band along the side of the tail. 



Tropical America. 



(I. Half-grown. Essequibo. Collected by Hr. Ehrhardt. 



h, c-d. Adult (24 inches) and young. Surinam. Collected by Hr. 



Kappler. 

 e,f,rj-li. Half-grown and young. Surinam. Erom the Collection of 



H. van Lidth de Jeude. 

 i-h. xVdidt and young : skins. From Gronow's Collection. 

 /, m~o. Adult and half-grown. Pani. 

 p. Half-growu. Rio das Velhas, Presented by Prof. Reinhardt. — 



One of the types of St. maregravii, 



2. Sternopygus virescens. 



Sternarchus virescens, Vaknc. in D'Orh. Voy. Amer. Merid. Poiss. 



pi. 13. Hg. 2. 

 Sternopygus tumifrous, Miill. ^- Trosch. Ilor. Ichthyol. iii. p. 14. 

 liueatus, Milll. ^- Irosch. I. c. ; Kaup, Ajood. p. 138 ; Stein- 



ddchner, I. c. p. 201. 



* 1. Gymnotus jvquilabiatus, Humboldt, Observ. Zool. i. p. 46, pi. 10; Kaup, 

 Apod. p. 142.--Eiver Magdalena, New Granada. 



