1312 BullctiJi ^7, United Siaics National Museum. 



low, and the caudal widely forked. Two species kuowu. (XvOpov, gore; 

 ov\ov, gum.) 

 a. Gill rakers about. 10 + 22 = 32; body oblong, tbo depth 3 in length. 



FLAVIGUTTATUM, 1678. 



Ort. Gill rakers 8+ 15 = 23; body deep, the depth 25 in length. opalescens, 1679. 



1G78. LVTHRULON FLAVIGUTTATUM (Gill). 



(Peixe-Fonda.) 



Head SJ; deptli 3. D. XII, 15, rarely XIII, 15; A. Ill, 8; snout 4 in 

 head ; maxillary reaching a little past front of pupil, 2i ; orbit 3 ; inter- 

 orbital 4i ; longest dorsal spine 2 ', ; longest dorsal ray 3* ; second anal 

 spine 3 ; pectoral 1} ; ventral 1? ; scales 6-49-14. Form elongate oval, com- 

 pressed, the curve of ventral and dorsal outlines about equal and uniform. 

 Head small and short, with short pointed snout ; anterior proiile very slightly 

 concave before eye, thence slightly convex to dorsal ; mouth small and 

 oblique with the lower jaws jirojecting; teeth all small, the outer scarcely 

 enlarged ; preopercle finely and sharply serrate, its posterior edge shal- 

 lowly concave, its angle broadly rounded. Gill rakers slender and numer- 

 ous, the longest nearly equal to the diameter of pupil, about 10-f 22. 

 Scales of moderate size, those above lateral line arranged in very oblique 

 series; tip of snout, chin, and maxillary naked; scales on top of head and 

 cheeks small and crowded; soft iins with scales. Pectoral 1^ in head, 

 reaching nearly to vent; ventrals 1|, reaching halfway to anal rays; sec- 

 ond anal spine a little longer and stronger than third, its tip when 

 depressed not reaching base of last rays; caudal lin forked, its upper lobe 

 the longer. Frontal foramina 2 short slits close togetlier, just in front 

 of the high supraorbital crest. Color in spirits, dark steel-gray; a small 

 A'ery distinct pale spot on each scale of back and sides, surrounded by 

 darker; this spot in spirits light yellowish; in life of a pearly blue; head 

 plain ; a small dusky blotch under angle of preopercle ; fins plain, bright 

 yellow in life. Young with a large black blotch at base of caudal, .as in 

 Hcv/mulon stcindachneri and Ortliostachus maculicauda, and without the 

 dusky horizontal streaks seen in most of the other species. Length 1 foot. 

 Here described from a specimen 9 inches long from Guaymas, Mexico. Pa- 

 cific coast of tropical America, Guaymas to Panama; generally common 

 along the Pacific coast of tropical America, (flavus, yellow; guUatus, 

 spotted.) 



Hcemulon Jtaviguttafns,GlVL, Proc. Ac. Nat. Sci. Phila. 18G2, 254, Cape San Lucas (Coll. 



Xantiis). 

 Hcemulon margaritiferum, Gunther, Proo. Zool. Soc. London 1864, 147, Panama. 

 llwmulon JlaviguUatiim; Steindachnee, Ichth. Bcit.,iii, 14, 1875; Jordan & Swain, I.e., 



314; EVERMANN & JENKINS, Proc. U. S. Kat. Mus. 1891, 152 ; Jordan & Fesler, I. c, 479. 



1(579. LTTHRULON OPALESCEIVS, Jordan & Starks. 



Head 3^; depth 2|. D. XII, 16; A. Ill, 9; snout 3| in head; maxillary 

 reaching slightly past front of pupil, 2i in head; orbit 2^; interorbital 

 3|; longest dorsal spine 2; longest dorsal ray 4; second anal spine 2A; 

 pectoral 1^\;', ventrals li; scales 7-54-13. Body deep, compressed, the 

 back well elevated, the dorsal outline nearly uniformly curved from tip 



