NO. 2133. FISHES TAKEN BY "ALBATROSS;' 1S8S— THOMPSON. 413 



than those on body or on blind side of head; snout and jaws scaleless; 

 color in alcohol light brown, scales outlined with pigment; four indis- 

 tinct blotches of darker color along lateral line and man}^ others 

 dispersed over body; fins with irregular markings of darker brown. 



19. THYSANOPSETTA NARESU Gunther. 



One specimen from station 2771, north of Cape Virgins, which was 

 the type locality. It was taken in 55 fathoms, while the type was 

 taken in 51. It seems that this species has not been found since the 

 voyage of the Challenger, save byLonnberg.* The description given 

 by Giinther is not given in much detail, but there is no doubt as to 

 the identity of our specimen. The illustration given in the "Shore- 

 fishes" of the Challenger shows the eyes dextral, whereas the text 

 states them to be sinistral, as is true of our specimen. 



Head 4 J in body length to base of caudal; depth 2 J in same; snout 

 4 J in head; eye (upper) 3§; maxillary 2|; mandible 1-|; interorbital 

 space 2f in upper eye; pectoral of C3^ed side 2 in head; depth of caudal 

 peduncle 2 in head; dorsal rays 82; anal 59; pectoral of eyed side 9; 

 scales in lateral line 70; in transverse series 22/25; gill rakers 10 + 25, 

 their length two-thirds longitudinal diameter of eye. 



Body oblong, median contours nearly paraUcl and with but slight 

 convexity; upper border of upper eye nearly in dorsal outline of head; 

 bony ridge of interorbital narroAV and sharp, covered by a flat scaled 

 area nearly as wide as pupil; eyes oblong, their vertical diameter 

 two-thirds their longitudinal, the upper eye markedly in advance of 

 of the lower; jaws equal, the upper with a sharp notch at tip, into 

 which fits a knob from the lower; subopercle of eyed side with coarse 

 cirri ; giU rakers long and delicate; teeth in jaws fine, set in four irreg- 

 ular rows anteriorly in both jaws, thinning out to two posteriorly on 

 both eyed and blind sides equally. 



Dorsal fin beginning opposite anterior border of upper eye, first ray 

 somewhat thickened and a trifle longer than second ; pectorals of eyed 

 and blind side nearly equal in length; ventral of eyed side normal, that 

 of blind side so reflected that first and last rays are superimposed, 

 with a troughlike fui between (a fleshy lobe extending from an 

 enlarged and modified vent obhquely backward across bases of first 

 anal rays due to preservation?). 



Scales strongly ctenoid, absent on fms, snout, jaw, and inter- 

 opercle. 



Color, uniform rather dark brown. 



20. ACHIRUS JENYNSI (Gunther). 

 Achirus lineatus D'Orbigny. 

 Five specimens from Buenos Aires, showing the following variations. 

 The longest is 127 mm. in total length. The measurements in paren- 



1 Magalhaenische Sammelreise, 1907, p. 14, 



