788 J>RO<'EEI)TX<iS OF THE XATIONAL MUSEUM. vol. xxx. 



last rays not reaching so far back as those of soft dorsal. Caudal tin 

 shallowly lunate. 



Back and sides with wavy dark brown spots nearly as wide as pupil, 

 ruiuiino- irre^'ularly horizontal or sometimes slightly ol)li([ue. These 

 are ))ut little broken up on sides, but on base of caudal and on back 

 below anterior part of spinous dorsal they break up into round spots 

 separated b}' narrow interspaces. Lower part of head with stripes 

 similar to those on body, but clearer cut at the edges. Lateral line 

 running in a light streak much broken up by the wavy streaks cross- 

 ing it. A white spot on back between lateral line and base of dorsal 

 opposite the dorsal notch as in Pwralahrax humeralis and Paralahrax 

 alhomaculatns. Upper parts of head dark brown; a few indistinct 

 small round lighter spots on snout and preorbital region. Lower parts 

 of head and body dusk3^ Spinous dorsal slightly dusk}'; a dark bar 

 behind third spine, and a fainter one behind fourth. Soft dorsal mot- 

 tled with dark ])rown. Anal and ventrals dusk}", darker toward tips 

 of rays. A dark spot in front of base of pectoral, separated from a 

 crescentric bar of dark brown on base of pectoral rays by a narrow 

 light bar. 



The general pattern of coloration resembles very much that of 

 Mycteropercd hoiilengi'i'l., and serves at once to distinguish this species 

 from others of its genus. 



The type and sole specimen is 247 mm. in entire length, and was 

 taken at Callao, Peru. It is deposited in the U. S. National Museum, 

 Cat. No. 53471. 



Family LUTIANID.E. 



57. LUTIANUS ARGENTIVENTRIS (Peters). 



Three specimens from Guayaciuil, Ecuador. 

 Family ILFMULID.F. 



58. ANISOTREMUS PACIFICI (Giinther). 



One specimen From (Tuayacjuil, Ecuador, does not diti'er from speci- 

 mens from Panama. 



59. ANISOTREMUS SCAPULARIS (Tschudi). 



Three small specimens taken at Callao, Peru. A specimen 40 cnr 

 in length, in the Stanford University collections, retains the black 

 axillary spot and the spots at the last dorsal and anal rays. The preo- 

 percle is no less sharply denticulated than in small specimens. Speci- 

 mens from the (xalapagos Islands and Cocos Island are darker in color, 

 and have lost \.\\v posterior dorsal and anal spots. 



