to THE CYPRINODONTS. 



ing males all the anal rays are elongate and closely applied. Ventrals 

 medium, reaching the vent, first ray strong. Pectorals broad, rounded, 

 not reaching bases of ventrals. Caudal broad, not as long as head, sub- 

 truncate. Scales large. Intestine elongate, convolute, filled with mud. 



Olivaceous, darker on back, silvery on lower surfaces. Centres of scales 

 a trifle darker. Caudal darker toward the end. Small specimens are lighter 

 in color, and have three or four longitudinal series of brown spots, forming 

 vittse, along the flanks. Males are fully developed when one inch and a 

 quarter in length. The largest specimen at hand measures three and one 

 half inches. Montevideo; Maldonado. 



ANABLEPINuE. 

 ANABLEPS. 



Plate IV. Fig. 1-2, teeth; Plate VI, VII. 



Anableps k^di, 1738, Gen. Pise, 25, — Syn. Pise, 43,-1761, Seba, Thes., Ill, 108; Linn., 1740, 

 Syst., ed. 2, 55,-1744, ed. 4, 86, — 1747, ed. 5, 63, — 1748, ed. 0,53, ed. 7,53, — 1756, ed. 9, 55; Gron., 

 1754, Mus., I, 12,-1756, Mus., II, 7,-1763, Zooph., 117 ; Houtt., 1765, Nat. Hist., VIII, 92 ; Scop., 

 1777, Intr. Hist. Nat., 450 ; Walb., 1789, Art. Bibl. & Phil. Ichtb., 129, 138, 142, — 1792, Art. Gen. 

 Pise., 160; Bloch, 1794, Ausl. Fiscbe, VIII, 5; Bl. Scbn., 1801, Syst., pp. xlviii, 389, — LaC, 1803, 

 Poiss., V, pp. XX, 25 ; Cuv., 1817, B. An., II, 197, — 1829, ed. 2, II, 279,-1836, ed. 3, 1, 532; Plem., 

 1822, Phil. Zool., II, 386; Schinz, 1836, Nat. u. Abb. Pische, 216; Val., 1846, C. V. Poiss., XVIII, 245; 

 Miill. & Tr., 1848, Pauna Guiana, 632; Gray, 1854, Gron., Cat., 192; Dum., 1856, Ichtb., 426; Blkr., 

 1863, Atl. lehth.. Ill, 140; Gthr., 1866, Cat., VI, 327,-1880, Intr., 617. 



Anableptini Bonap., 1831, Saggio, 94, 113,-1838 (in Cypriuidse), Nouv. Ann. Sci. Nat., Bolog., II, 

 132,-1839, Selach. Tab. Anal., 14,-1840, Syst. Vert., 53,— Nouv. Ann., Bolog., IV, 195,-1841, 

 Linn. Soc. Tr., XVIII, 299,-1850, Consp. Syst. Iclitb. 



Aiiablepidce Swains., 1839, Classif., II, 190. 



Anablepini Blkr., 1860, Cypr., 483. 



Anablepli/ue Gill, 1861, P. PhH. Ac, 3. 



Anablepiformes Blkr., 1863, Atl. Ichth., Ill, 140. 



Anablepina Gill, 1894, Mem. Nat. Acad., VI, 132. 



Elongate, depressed anteriorly, compressed behind the body cavity. Head 

 depressed, broad ; orbits prominent above the crown. Eyes externally divided 

 by a dark transverse band of the conjunctiva and internally in part by a 

 lobe at each side of the iris. Mouth broad, anterior. Intermaxillaries pro- 

 trusive, and, like mandibles, rather loosely joined. Teeth in a band, small, 

 simple, hooked, outer series larger ; pharyngeal teeth with a shoulder. An- 

 terior nostril near angle of mouth, tubular, pendant ; posterior a vertical slit 

 near front of eye. Gill membranes united for a short distance, free from the 

 isthmus. Six branchiostegal rays. Dorsal and anal small, behind the middle, 

 dorsal farther back ; ventrals small, sepai'ated. Anal of male tubular, scaly. 



