THE CYPRINODONTS. 131 
A comparison of types of this form with specimens H. spilargyreus, 
HZ. spilauchen, and H. senegalensis will be necessary before deciding as to its 
relationship or position. 
Haplochilus Johnstoni. 
Haplochilus Johastoni Gthr., 1893, P. Z 8. Lond., 627. 
D. 7; A. 12-13; Li. 29; Ltr. 7. 
“The height of the body is one fourth or one fifth of the total length, 
without caudal ; the length of the head a little less than one fourth. Head 
compressed ; snout somewhat depressed; lower jaw projecting beyond the 
upper. The width of the interorbital space is less than one half of the length 
of the head. The diameter of the eye equals the length of the snout, and is 
a little less than one third of the length of the head. The origin of the dor- 
sal fin is twice as distant from the eye as from the root of the caudal, and 
corresponds to the seventeenth scale of the lateral line or to the ninth anal 
ray. Pectoral fin extending beyond the root of the ventral. None of the 
fins elongate. Coloration of specimens in spirit uniform reddish olive; a 
fine bluish line runs along the scales of the lateral line. Several specimens 
are sent from Fort Johnston; they were collected in November; their length 
is from 18 to 20 lines. Allied to Haplochilus Petersii (Sauvage), but differing 
in various particulars.’ (Giinther.) 
Haplochilus spilargyreus. 
Perilia spilarggreia Dam., 1861, Arch. Mus., X, 258. 
Epiplatys sexfasciatus Gill, 1863, P. Phil. Ac., 1862, 136; Cope, 1871, P. Am. Phil. Soc., XI, 457. 
Epiplatys spylargyreia Gill, 1. ¢., 136 
Haplochilus infrafasciatas Gth., 1866, Cat., VI, 313; Sauv., 1880, Nouv. Arch., ITI (2), 23; Steind., 
1893, Notes Leyd. Mus., XVI, 76. 
Epiplatys infrafasciatus Cope, 1871, P. Am. Phil. Soc., XI, 457 
Haplochilas spilargyreas Rocheb., 1883, Poiss. Seneg., 139; Sauv., 1880, Nouv. Arch., II] (2), 23. 
D.10; A. 14; V.6; P14. (Dum.) 
D. 11; A. 14; V.6; Li. 28; Ltr. 9. (Gth.) 
D. 11; A. 16; Ll. 28-29; Ltr. 8}. (Steind.) 
Depth about one fourth, and head near three tenths of the length of the 
body. Head depressed, snout moderate, lower jaw projecting little beyond 
the upper. Eye about two sevenths, forehead more than one half, and snout 
nearly two fifths of the head. Snout as long as the eye, mandible much 
longer. Dorsal origin midway from eye to end of caudal, opposite the nine- 
