1390 Bulletin ^7, United States National Museum. 



weakly serrulate ; gill membranes united straight across breast, free from 

 the isthmus, their free border under posterior part of eye; gill rakers 

 small and short; pseudobrauchije present; head more completely scaled 

 than in K. sectafru; the naked areas similar, but more restricted; scales 

 striated and rngose, butscarcely ctenoid, much smootherthan in K. sectdirix, 

 those on middle of sides largest, those on breast not much reduced in size; 

 soft dorsal and anal completely covered wilh scales, the pectorals and 

 caudal nearly so ; dorsal spines low, the longest ^i^ in head, the base of the 

 fin nearly ecjual to that of the soft dorsal or the anal ; soft dorsal very 

 low, its last ray longest, its middle rays not so long as the eye; caudal 

 extremely long, deeply forked, the lobes falcate, the upjier rays more than 

 4 times the length of the middle rays and equal to the greatest depth 

 of the body; anal long and low, its base greater than length of head, its 

 last ray longest, its middh^ rays shorter than eye ; anal spines small, gradu- 

 ated; ventrals short, well behind pectorals, nearly i length of head, and 

 reaching halfway to front of anal; j)eetorals short, a little more than 

 J head. Color in life: Back and sides above light olive-brown, becoming 

 yellowish-olive below; belly and lower part of sides white; each side 

 of back with a very distinct dark-blue stripe, commencing a little in front 

 of origin of dorsnl and running to upper lobe of caudal tin, gradually 

 increasing in width backward to caudal peduncle, along which it is sud- 

 denly niirrowed; a small blue spot on median line between the orbits, a 

 broad blue stripe from snout through eye to suprascapula; a second from 

 snout through lower margin of orbit to opercle, where it is abruptly 

 expanded; lores golden, abroad golden stripe Itehind angle of mouth, no) 

 reaching preopcrcular margin; a broad dark-blue stripe from above base 

 of pectorals straight to base of median caudal rays; below this is a nar- 

 rower golden stripe; lower part of sides with indistinct longitudinal 

 brownish streaks along the margins of the series of scales; vertical fins 

 golden yellow, caudal narrowly mai-gined with black; pectorals brown 

 within, the outer side silvery with yellow tinge; ventrals yellow on inner 

 margins, silvery on the outer; roof of month and tongue bright white. 

 Panama; known only from the original types, {cohvi;, swift; ovpd, tail.) 



Pimeliytenis oeyurus, JoRitAN &, Gilbert, Bull. U. S. Fisli Conim. 1881, 327, 328, Bay of 



Panama. (Type, No. 29395, U. S. N. M. Coll. C. H. Gilbert.) 

 Kyphosus ocyurvg, Jordan, Proc. U. S. Nat. Miis. 1885; 380; Jordan & Fesler, I.e., 536. 



568. MEDIALUNA, Jordan A Fesler. 



(Medialunas.) 



Medialuna, Jordan & Fesler, Review Sparoid Fislies, .536, 1893 (calif oniiensis) . 



Body ovate-elliptical, covered with small, firm, ctenoid scales, which 

 also cover the membranes of the soft parts of the vertical fins; mouth 

 small, terminal, horizontal; the ma.xillary narrow, slipping under the 

 edge of the rather narrow preorbital ; sides, toi> of head, and jaws closely 

 scaled; preopercle minutely crenulate at angle; jaws with broad bands 

 of slender teeth, those in the outer series incisor-like, compressed, nar- 

 row, and lanceohito in form, the outer surface transversely convex, the 



