Jordan and Evennann.— Fishes of North America. 



2051 



iu^; upper edge of maxillary slipping under preorliital for its whole 

 length, its posterior end midway between tip of snout and middle of eye; 

 vilUform teeth on jaws and vomer, none apparently on palatines; lower 

 jaw with a fleshv tip, scarcely produced iuto a l.arbel, scarcely as loug as 

 diameter of pupil; supraorbital rim prominent, making the interorl.ital 

 space deeply concave; width of the latter al>ont f eye; 2 ridges from the 

 inner edges of supraorbital rim run backward, and are continuous with 

 dorsal ridges of bJdy ; edge of preopercle with 3 spines, the middle one the 

 largest. Two large median plates in front of ventrals on breast, a row ot 

 plates along each lateral ridge of breast, a large plate on each side of the 

 union between first and second median plates, and behind them a row of 

 small plates irregular in size an<l position, sometimes continuous and inter- 

 posed between median and lateral plates, and sometimes allowing the 

 ed<-es of median and lateral plates to touch; 11 or 12 plates in front of 

 dorsal; spinous dorsal on 9 or 10 plates, counting to end of membrane ; 

 lateral line 43. Space between dorsal ridges strongly concave, the ridg.-s 

 coming together on caudal peduncle, but not uniting, continuing parallel 

 for a short distance and then becoming obsolete; upper lateral ridge end- 

 ing anteriorly on about the twelfth plate from head. Last rays of dorsal 

 and anal connected to the body by a membrane; space between dorsals 

 about equal to the width of a plate; front of anal midway between pos- 

 terior end of maxillary and base of caudal; pectoral reaching just past 

 front of spinous dorsal; vent distant an eye's diameter from base of ven- 

 trals; length of caudal equal to head behind anterior ridge of pupil. 

 Color blackish, with tine punctulations; belly white; a light streak run- 

 ning backward from eye to upper e.lge of gill opening; below this an area 

 scarcely so wide as eye, darker than the rest of body, its lower edge 

 sharply defined against the wliite under parts of head; chin black; dor- 

 sals and caudal dusky; pectorals light, the rays with many black spots 

 which do not involve the meml)rane; ventrals and anal white. This 

 species difl^ers from Fallasina harbata in having a much shorter barbel on 

 chin in having 2 median plates in front of ventrals in place of 3, and in 

 having the plates between the median and lateral plat(>s much smaller 

 and less regular in arrangement. In P. harhata these plates are about as 

 large as the median plates and always interposed between them and lat- 

 eral plates, the arrangement being constant. The abdominal ridges are 

 generally closer together in P. aix than in the northern species. Pnget 

 Sound to the Aleutian* Islands; taken with the seine in great abundance 

 in Pu.^et Sound, near Port Ludlow ; the largest nearly 5 inches in length, 

 the others about 3. (cxll, a goat, from the pointed beard, or az?, a darter, 

 from tlie slender form.) 



Pallanna aix. Stakks, Proc. Cal. Ac. Sci. 1806, 558, pi. 75, Puget Sound near Port Lud- 

 low, Washington. (Type, No. 5040, L. S. Jr. Univ. M»-s. Coll. E. C. ^tarks.) 



*Two sniall speciiuens ^vere taken by Dr. Gilbert ^^ Chignik Bay, Ala^^^^^^ 

 majority have 11. Fin formula: D. VII, 6; A. 10 ; 1 . li. U. v jj., o, .ci.. », j: . i* 



