teeth in each jaw. Anterior nostrUs wide, in the upper Up. 

 bnout short or of moderate length, depressed. Vent behind the 

 head. 



Tropical America. 



1. Carapus fasciatus. 



Ca.m^o,Marcgr. Hid. Pise. p. 170; cop. by Willughby, Hist. Pise. 



p. llo, tab. (jr 7. ng. 4. 

 Gymuotus, sp., Scba, iii. tab. 32. fig. 1. 

 Gymnotus fasciatus, Pall. Sjncil. Zool. vii. p. 35. 



albua. Pall. I. c. p. 36 ; Bl. Schn. p. 523. 



bracliyurus, £1. taf 157. hg. 1. 



putaoi, Lacep. ii. p. 176. 



cartipo, PI. Schn. p. 621. 



Carapus fasciatus, Cm: Rkjne Anim. ; 311111. ^- Trosch. I. c. p 13 • 



Kaup, Apod. p. 139; Steindachwr, Sitzgsher. Ak. Wiss. JFien, 1868, 



Iviu. p. 2G1. ' ' 



brachyurus, Cuv. I. c. 



iu|Equilabiatus, Valetic. in d'Orb. Voij. AmSr. Merid. Poiss. 



pi. 14 (tail mcorrect). 

 • albus, Kauj), I.e. p. 140. 



Lower jaw projecting beyond the upper. Eye very small. Scales 

 ot moderate size. Vent below the giU-opening. Anal fin com- 

 mencmg behind the point of the pectoral. Young examples gene- 

 rally with more or less numerous obUque brown bars, which disap- 

 pear Avith age or are broken up in spots ; sometimes of a uniform 

 dark coloration. 



This species varies, not only in coloration, but stiU more in the 

 term of the body and head. The " dorsum canaUculatum " can be 

 observed in very fat examples, and the notch behind the anterior 

 nostril IS more distinct in old than in young examples. The number 

 ot the teeth cannot be used as a specific character, as it varies 

 trom 6b to 56 m the lower jaw, and from 2G to 40 in the upper. 



From Brazil to Guatemala. 



a. Half-grown. Brazil. Presented by Lord Stuart. 



b. Young. Eiver Capim. Purchased of Mr. Stevens. 



c. d-e. Young. Bahia. Collected by Dr. Wucherer. 



/. Young. Surinam. From the CoUection of Dr. van Lidth de 



Jeude. 

 g, li, i-L Adult, half-grow, and young. British Guyana. 

 m-n. Young. Essequibo. CoUected by Hr. Ehrhardt. 

 0. Adult (17 inches). Berbice. 

 p. Adult. Trinidad. Purchased of Mr. Cutter. 

 q-r. AdiUt. Island of Grenada. Purchased of Mr. Higoins 

 s-U Half-grown. Rio Motagua. Collected by F. Godraan, Esq 

 u, V, lu-x. Adult, half-grown, and young. 

 y. Young. Brazil. Presented by Professor Eeinhardt. 



