^'ifrG^'] PROCEEDINGS OF THE NATIONAL MUSEUM. 121 



strougly projecting, its anterior profile nearly vertical. Depth, 2| to 

 L'j| in length in specimens 5 inches long. Depth of (caudal peduncle, 

 21 in head. 



Head, 3f to3f in length. Anterior nostril with a short tube and flap, 

 the latter nearly obsolete on blind side. Mouth more oblique than in 

 sordidus ; maxillary reaching vertical from front of pupil, 2f to 2f in 

 head. Teeth in a single series, close-set, those anteriorly somewhat 

 enlarged, but none of them canine-like. Eyes large, the vertical from 

 front margin of upper eye falling through front of lower pupil. Long- 

 est diameter of upper orbit 2§ in head. luterorbital si)ace narrow, con- 

 cave, scaled, the lower ridge strongest, its width about one-eighth di- 

 ameter of orbit. Symphyseal knob sharp. Gill-rakers long, slender, 

 close-set (as in sordidus)^ eighteen on anterior limb of arch, the longest 

 one-third orbit. 



Scales large, deciduous, somewhat irregularly arranged, twelve or 

 thirteen series above lateral line. Scales smooth on blind side, min- 

 utely spinous on eyed side. Lateral line without anterior arch. 



Dorsal beginning slightly in advance of eye, the longest ray half head. 



Pectorals long and narrow, with eleven rays on colored side. 



Color, dusky-olivaceous, with occasional slaty-blue spots. 



iMany specimens from the Gulf of California, in from 18 to 7G fathoms. 

 Stations 3011, 3010, 3017, 3018, and 3033. 



87. Ancylopsetta dendritica sp. uov. 



Differing from A. quadrocellata in tlie branched tubes of the lateral 

 line, the very broad short gill-rakers rough with teeth, etc. 



Body very broad, its depth 1| in length, the two outlines equally 

 curved; profile not very strongly angulated in front of upper eye. 

 Lower eye slightly in advance of upper. luterorbital space a rather 

 broad convex scaly ridge, about one-third upper eye, which is contained 

 about five times in head and is equal to snout. A blunt spine on 

 snout on head of maxillary. ^^Tostril openings very broad, without tube, 

 the anterior with a narrow flap. Mouth moderate, very oblique, the 

 gape curved, maxillary reaching slightly beyond vertical from middle 

 of lower eye, 3 in head. Teeth in a single rather close-set series in 

 each jaw, strong, conical, directed very obliquely inward, becoming 

 gradually larger towards front of jaw, but not canine-like. Gill-rakers 

 very short, barely movable, as broad as long, strongly toothed, six on 

 anterior limb. 



Dorsal beginning over middle of upj^er eye, the anterior rays partly 

 free toward tips, but little, if any, elevated above those that follow, 

 the first 3| in head. Dorsal highest in its posterior third, the longest 

 ray 2f in head. Anal similar, the rays of posterior third of both fins 

 slightly forked at tips. Caudal peduncle deep and short, its depth 

 about half head, its length half its depth. Caudal rounded, almost 

 double truncate. 



