3174 
Bulletin United States National Museum. 
ventrals; curve of dorsal outline interrupted by a slif^ht elevation above 
eye and a rather rapiil descent at base of soft dorsal; ventral outline less 
curveil than dorsal; interorbital s])ace convex; orbit somewhat elongate 
laterally, located slightly nearer tip of snout than to posterior edge of 
opercle, its lower edge a little above a horizontal from month to middle 
of caudal peduncle ; cleft of month almost horizontal; maxillary, except 
distal end, concealed by preorbital; lips thick, the lower with a narrow 
frenum; jaws equal, the upper modei-ately protractile ; teeth in 2 series 
on each jaw, outer series in a single row, large, canine-like, far apart; 
inner series minute, in bands; tips of teeth brown-colored ; no teeth on 
vomer or palatines. Gill-membranes forming a fold across the isthmus; 
gill-rakers on first arch 10, short aud blunt. Body covered with large 
weakly-ctenoid scales; head with cycloid scales; upper xiart of head 
anterior to middle of orbit, snout, jireorbital area, aud ventral part of 
head, naked; a single row of small scales along bases of dorsal and anal 
fins; small scales on ba.sal x»art of inter- radial membranes of caudal; lat- 
eral line interrupted at the fourteenth scale, beginning again 3 scales 
lower and extending to base of caudal ; first dorsal sjiine very short, others 
gradually longer to the sixth or seventh, after which the sx>ines are about 
the same length ; fifth and sixth dorsal rays longest, about li times the 
length of longest spine, dexiressed fin extending to x’osterior edge of dark 
caudal spot ; first anal spine shortest, one-fifth as long as fifth spine, third, 
fourth, aud fifth rays longest; depressed fin extending to anterior edge of 
caudal spot; camlal liu evenly rounded; x^ectoral rounded, extending to 
a vertical from vent; outer rays of x>cctoral longest, extending to vent. 
Color in alcohol, light olive, darker above than below ; an indistinct, dark 
lateral band extending from snout to caudal; 8 or 9 scarcely distinguish- 
able dark vertical bamls on side of body; irregular dark spots at inter- 
section of lateral and vertical bands; a small, dark spot at base of caudal; 
small, distinct dark dots on anterior dorsal region of head. 
The total length of the type is 01 mm. Younger examples measuring 
about 43 mm. have the body a little deeper and the head shorter. The 
vertical color bands on posterior half of body are more distinct on the 
younger individuals. Kio ^'erde, Mexico. (Jordan & Snyder.) 
Cichlasoma sleindachneri,JORl>Ay i .SxvDEE.Iiull.U. S. Fisli (Join. 1899 (1900), 143, Rio Verde 
near Rascon, Mexico. (Type, Xo. 6104, L. S. .Ir. Uiiiv. Mas. Coll. J.O. Snyder.) 
Page 1540 . Before Theraps, Giinther, in.sert the following: 
194H (a). HEKOS ISTE.V.VUS, .Jordan <Sc .Snyder. 
Head 2« ; depth 2J; dei)th of caudal peduncle 7; eje 44 in head; snout 
2^] iiiterorbital space 3^; longest dorsal siiiue 2j, ray (without filament) 
1»; longest anal siiine 2f, ray (without filament) 1^; length of i)ectoral 
14; ventrals li^; caudal 14; D. XVI, 10; A. V, 7; P. 14; scales 28-18. 
Body elongate, compressed, deex>est above insertion of ventrals; dorsal 
outliue rising raf)idly to origin of dorsal, falling gradually to base of last 
spine, from whicli the descent to the caudal jieduncle is more abrupt; 
ventral outline evenly rouuded; interorbital sjiace convex; eye large, 
orbit circular, equally distant from ti]) of suout and ]»osterior edge of 
