178 MEMOIRS OF THE CARNEGIE MUSEUM. 
all but two of the sixteen genera. The eight species without recorded cases of 
regeneration are known by but few specimens. 
l 
AG | Caudal 
Name of Species Cpiaat | Append | gal | Ahor 
| age. 
tee 
1. Gymnotine: | | | 
il Electro phorus clecinvcus) (nN ssUs) eerie celeritete ceric rel leicester A st Sachs 
2Gymnotus carapol (UANNeUS)| eres either sete ects ee eines poeeeine 2 sa Spms. 
2. Sternarchine: 
1. Sternopygus macrurus (Bloch & Schneider)................ Ie Tareas * "s Spms. 
2. Sternopygus obtusirostris Steindachner..................... | Soaksone eee He i Spms. 
3. Higenmannia macrops (Boulenger).............--+-+-+++0: Il eisveretey ern se Spms. 
4. Higenmannia virescens (Valenciennes) .............+.2.-+0 Nets Gia bait ta © gh|e ie eae Steind. 
Daveigenmanniartroschelm (Kau) eset seen eee eke Wairceena - |" syaearaeves Steind. 
6. Steatogenes elegans (Steindachner)...................2000 Heeichoteticen? 2 = Spms. 
7. Hypopomus brevirostris (Steindachner)..................e-\.e0e00-- 2 s Spms. 
Sa ee ypopomusianted ys UXAlID) hep eee eee eine ee ree Sener ig x | Spms. 
Os Rhamphichthysinosinatus) (linneus)-e eee aac teeters a - Spms. 
10. Gymnorhamphichthys hypostomus Ellis.............0.00eeeeleceeeeee * me Spms. 
3. Sternopygine: | | 
1. Sternarchorhynchus oxyrhynchus (Miller & Troschel)........ FEN | Mateo Savenn | ieioeie ee | Spms. 
2. Sternarchorhamphus miilleri (Steindachner).............+.. ae ets rem err nr | Spms. 
3. Sternarchorhamphus macrostomus (Giinther)..............-- | | | 
4. Sternarchus albifrons (Linneus))....-.....----.-+--.5-2+->: Vien spn op bon! becan aos | Steind. 
Ds WLennanchuslOrasilensts ReImnardt |e siete eee | 
6. Sternarchus bonaparti Castelnau. .............00eeeee reece Pete beweteree nies tta ric | Spms. 
7. Sternarchusileptorhynchus Willis... .....+.s++ess++s+s+-+-+ 0% ¥ Po) Stipes ctl eroraeneres Spms. 
SIISLEMNanChusiLGsemar MiblliShe ieee eee ort ae eee 27 WAI eect pliers terete: | Spms. 
9. Sternarchella schotti (Steindachner).................-.00-- ie emesis Snbemalscop onal isla 
LO Sternarchella, balenopsi(Cope)hameeecackieceetee ae eee | 
11. Sternarchogiton natterert (Steindachner).................-- | | 
IU DaeROnotengusl GUM TOLUsSerl LiSRee eee erence | - | eo nats nach re AN roe Spms. 
TS se ROnOLengus Gumbel iH Strate se ieee eee eee 
14. Adontosternarchus sachsi (Peters)..........-20eecceceeeees | a Bee | Spms. 
15. Orthosternarchus tamandua (Boulenger)................2005 I PENS lees Grapes lise serene | Boulg. 
Gymnotine, Electrophorus electricus (Linnzeus). According to Sachs (op. cit., 
1881, p. 11), the long anal fin and confluent caudal of the electric eel were often 
found slightly injured and in various stages of regeneration. These injuries were 
usually V-shaped rents in the fins. The parts restored were fin-membranes and 
rays. The regenerations in some cases seemed fairly complete, none of the nine 
specimens in the present collections were found to be injured. 
Gymnotus carapo Linneus. This species is an almost cylindrical fish, rather 
pink with a greenish cast in life and crossed by blue-gray or greenish bands. The 
body tapers somewhat in the caudal region and ends in a small, cylindrical caudal 
appendage, which never exceeds the snout in length. The head is rather flat, and 
both of the strong jaws contain one or two rows of conical teeth. The adult of this 
species is largely predaceous. Only seven cases of regeneration were found among 
two hundred and forty individuals of G. carapo examined. 
The collections of this species include specimens of all sizes from forty-eight 
localities. Four of the injured ones had lost only a few millimeters of caudal 
