Teeth conical, in bands ; 
anal modified, without a tube; 
pupil entire ; pelvis entire 
intermaxillaries produced 
intermaxillaries not produced ; 
A. smaller than D, and farther back 
A. and D. small; D. backward of A. ; 
mouth wide; chin low 
mouth narrow; chin steep 
Teeth conical; pupil entire; pelvis entire ; 
anal not modified 
ventrals absent ; 
pharyngeal teeth slender 
pharyngeal teeth thick, molars 
ventrals present ; 
jaws with teeth in a single series 
jaws with teeth in bands ; 
‘ pseudobranchiw absent ; 
7 intermaxillaries produced 
wt intermaxillaries not produced ; 
4 D. and A. nearly equal ; 
; origin of D. forward of A. 
~— first spine of D. strong 
J 
caudal forked 
=~ origin of D. backward of A. 
D. smaller than A. and farther back 
body and head compressed 
body sharp-edged behind vent 
pseudobranchie present ; 
mouth resembling that of Fundulus 
mouth resembling that of perch 
CYPRINODONTINE. 
CYPRINODON. 
Plate I. Fig. 1-4, teeth, 
GAMnusin”e 
Belonesox 
Pseudoriphophorus 80 
Gambusia 
Heterandria 
HApLocuiLin’® 
Orestias 
Empetrichthys 
Lucania 
Haplochilus 
Fundulus 
Adinia 
Fundulichthys 
Zygonectes 
Rivulus 
Cynolebias 
Pterolebias 
Haplochilichthys 
Nothobranchius 
Cyprinodon La C.; 1803, Poiss., V, pp. xxxi, 486; Raf, 1815, Anal., 88; Cuav., 1817, R. An., TI, 
199, — 1829, R. An., IT, 251, — 1836, R. An., I, 533; Flem., 1822, Phil. Zool., 11, 386; Val., 1828, Humb. 
Obs., Il, 164, — 1846, C. V. Poiss., XVIIT, 145; Wagner, 1828, Isis, XXI, col. 1056; Schinz, 1836, 
Abb. Fische, 217; Guer., 1838, Icon., Poiss., 29; Stor., 1846, Syn., 183,— Mem. Am. Ac., 435; Dum., 
1856, Tehth., 410; Blkr., 1860, Cypr., 481, — 1863, Atl. Cypr., IIT, 189; Gill, 1861, Cat.,51; Gthr., 1866, 
Cat., 301, — 1880, Intr., 614; Jor. & G., 1882, B. 16 U.S. Mus., 328. 
Lebia Les., 1821, J. Phil, Ac., IT; Swains., 1838, Classif., I, $66, — 1859, IT, 190, 311. 
Lebias Schinz, 1836, Abb., 216; Guer., 1838, Icon. Poiss,, 28; DeK., 1842, N. Y. Fish, 215; Stor., 
1846, Syn., 179, — Mem. Am. Ac., TI, 431. 
Peeilia (part) Goldf., 1820, Handb., 11, 17; MeClell., 1839, As. Res., XTX (2), 424. 
Trifareius Pocy, 1861, Mem., 11, 305, 383 — 1868, Rep., IT, 209, 411, — Mom., IT, 305, 383 
Jordanella Goowic, 1880, P. U. 8. Mas., I, 117; Jor. & G., 1882, B. 16 U. S. Mus., 327. 
