Jordan and Ever mann. Fishes of North America. 1567 



brownish yellow is conspicuous, sprinkled over with a few faint, darker 

 dots, which themselves become obsolete on the abdomen and caudal pedun- 

 cle; immediately behind the dorsal fin there is a dark spot, margined in 

 front by blue. The head above has 2 blue lines continued from snout 

 and decurved over the eye ball and behind the orbit; on the forehead 

 there is a transverse blue bar, and on the nape 2 nearly parallel longi- 

 tudinal blue lines. An oblique bar crosses the preorbital; a series of blue 

 dots on the suborbital chain is continued to meet the deflected line behind 

 the eye, and there is a blue bar behind the end of the maxillary. The lips 

 and opercula are brown. The dorsal fin, on its scaly portion, including all 

 the spinous portion, except a marginal band, and the lower half of the soft 

 dorsal is blue, the scales scarcely being margined by brown ; the other fins 

 are colorless, except the margin of the anal, which is dark. The species, 

 with advancing age, loses the intensity of the blue above, but the color 

 spreads downward faintly, and is perceptible on all the scales except 

 those of the abdomen and hinder portions of the caudal peduncle. The 

 blue on the upper surface of the head and the preorbital finally becomes 

 obliterated, but the series on the infraorbital chain and the bar behind 

 the maxillary remain, while the opercle assumes blue dots. The fins 

 also, especially the ventral and anal, have become dusky. * * * 

 Coloration quite peculiar in the gradual spreading of the blue, while it 

 becomes fainter at the same time with age." 



Pacific coast of tropical America from Cape San Lucas to Panama; the 

 young abundant in rock pools, with Enpomacentrw flavilatm, with which 

 it has been confounded. A beautiful fish (named for Spencer Fullerton 

 Baird). 



Fomacentrus bairdii, GILL, Proc. Ac. Nat. Sci. Phila. 1862, 149, Cape San Lucas. (Coll. 



Xantus.) 

 Microspathodon bairdii, JORDAN, Fishes of Sinaloa, iii Proc. Cal. Ac. Sci. 1895, 476, pi. 43. 



1980. MICROSPATHODON CHRYSURUS (Cuvier &, Valenciennes). 



Depth 2| in total length with caudal; eye 3 in head. D. XI, 15; A. 

 II, 13. Body oval ; forehead broad and depressed ; maxillary reaching to 

 the nostril; teeth below twice as large as those above. Color blackish 

 brown, the fins darker, excepting the caudal, which is entirely orange; 

 round spots of cobalt blue around the eyes, on the nape, and sometimes 

 on the back and scales of the dorsal fin. (Poey.) West Indies; known 

 from Cuba and St. Thomas. Not seen by us. (xpvdo$, golden; ovpd, 

 tail.) 



Glyphidodon chrysurus, CUVIER & VALENCIENNES, Hist. Nat. Poisa.,v, 476, 1830, St. Thomas ; 



GUNTHER, Cat., iv, 57, 1862. 

 Pomacentrus denegatus, POEY, Memorias, u, 190, 1860, Cuba. (Coll. Poey.) 



1981. MICROSPATHODON NIVEATUS (Poey). 



Head about 2f (3f in total) ; depth about 2 (2 in total) ; eye3f in head; 

 maxillary reaching the front of the eye; suborbitals and preopercle with- 

 out teeth. Color uniform black with large sky-blue spots, the size of a 



