GILBERT AND STARES — FISHES OF PANAMA BAY 151 



a second blue streak connects upper anterior margins of orbits, then extends vertically 

 downward behind angle of mouth. The transverse portion of this streak persists in 

 adults and becomes greatly widened. 



An oval area in front of dorsal fin contains a number of small bright blue 

 spots, usually one for each scale. The scales behind the white bar are widely mar- 

 gined with blue in adult specimens, but in none do we find traces of the blue cross- 

 bars described by Gill. These may be found in younger specimens than have come 

 to our hands. In adults, that portion of spinous dorsal in front of the white cross-bar 

 is bright yellow. The rest of the fin is deep brown like the body, passing into 

 brownish yellow in the falcate lobe, and as a submarginal band in front of this and 

 behind it. Behind the anterior yellow area, the fin is narrowly margined with bright 

 blue, the margin becoming much wider on the vertical part of the fin. In the young, 

 the dorsal is similarly colored, but the blue margin is wider and includes also the 

 anterior spines, and is everywhere followed by a submarginal yellowish brown band. 

 The anal is similarly marked. The caudal fin and nearly half of the caudal pedun- 

 cle are light lemon-yellow, the fin posteriorly with a narrow dark brown edge. Pec- 

 torals and ventrals lemon-yellow, without other markings. The white bar on sides 

 extends from base of dorsal, below fifth to seventh spines, downwards to a point 

 opposite middle of base of pectorals. It is usually widest in its upper third, narrow- 

 ing rapidly below. In adults, the dorsal lobe reaches nearly to edge of caudal. 



The genus Angelichthys Jordan and Evermann, characterized by the absence 

 of spines on the preorbital, by the coarser spines on the ascending limb of the pre- 

 opercle and by the greater length of the dorsal and anal lobes, should doubtless be 

 considered a section of Holacanthus. 



Family TEUTHIDID^. 

 281. Teuthis crestonis Jordan d; Siarks. 



This species is very near 2\ matoides, from the Hawaiian Islands and the 

 Western Pacific generally, and may prove to be undistinguishable from that widely 

 distributed form. It agrees in most details of shape, color and fin-rays, but appears 

 to differ in having the spine on the side of the tail distinctly smaller, and in having 

 the sides of the body mottled, but not streaked. In specimens 8 to 20 cm. long, the 

 caudal spine is four to five hundredths of the length from snout to base of caudal. In 

 specimens of T. matoides from Honolulu, 10 to 23 cm. long, the caudal spine is five to 

 six hundredths of the length. In eight specimens from Panama, the fin-rays are: 

 Dorsal IX, 25, 25, 26, 26, 26, 26, 26, 27; anal III, 23, 24, 24, 25, 25, 25, 25, 25. 



T. bahianus from the Atlantic has a still larger caudal spine, which is seven 

 to eight hundredths of the length. 



7\ crestonis is abundant in the tide-pools of the Panama reef, and among the 

 islands in the Bay. It is recorded from Panama Bay also by Boulenger (1899, p. 3). 



