PARALICHTHIN^ 71 



Pacific Species. 

 I. ^4 to 1 40 scales in lateral line ; dorsal 66-84, anal 5 1-64 ; eye 4 to 8 in head. 

 A. 20 gill-rakers on lower part of anterior arch ; scales of ocular side 

 ctenoid, those of blind side cycloid. 



1. Depth 2\ to 2} in length ; dorsal 69-74, ^^^^ 5--57 ■ n- californicus. 



2. Depth 2j in length ; dorsal 72-83, anal 58-63 . . 12. esstuarius. 

 13. 15 to 18 gill-rakers on lower part of anterior arch ; scales of ocular 



side ctenoid, those of blind side cycloid. 



1. Depth 2 to 2 J in length ; maxillarj^ (in adults) to a little beyond 



posterior edge of eye . . . . . .13. adspersus. 



2. Depth 2j to 2§ in length ; maxillary {in adults) to well beyond 



posterior edge of eye ...... 14. olivaceus. 



c. 12 to 14 gill-rakers on lower part of anterior arch ; scales all cycloid 



15. woolmani. 

 D. 9 to II gill-rakers on lower part of anterior arch ; scales of ocular side 

 ctenoid, those of blind side cycloid. 



1. 140 scales in lateral line ; majullary to beyond eye, which is 7f in 



head ........ 16. fernandezianus. 



2. 94 scales in lateral line ; maxillary to below posterior edge of eye, 



which IS 5i in head ...... 17. hilgendorfi. 



II. About 80 scales m lateral line ; dorsal 72-73, anal 56 ; 18 to 21 gill-rakers 



on lower part of anterior arch ; eye 4J to 5^ in head . . 18. microps. 



III. 75 scales in lateral line ; dorsal 87, anal 70 ; 20 gill-rakers on lower part 



of anterior arch ; eye 3 in head .... 19. cteruleosticia. 



I. PARALICHTHYS ORBIGNYANA (Valenciennes). 

 Flatessa orbignyana, (Valenciennes) Jenyns, 1842, Zool. Voy. " Beagle ", IV, Fish, p. 137 ;^ Valen- 

 ciennes, 1847, Voy. Amer. Merid., V, 2, Poissons, p. 10, pi. xvi, fig. i. 

 Piiralichthys brasiliensis (non Ranzani), Jordan and Goss, 1889, Rep. U.S. Com. Fish, xjv, (1886), 

 p. 246 ; Berg, 1S95, An. Mus. nac. B. Aires, iv, p. yy ; Jordan and Evermann, 1898, BuU. 

 U.S. Xat. Mus., xlvii (3), p. 2626 ; Fowler, 1927, Proc. Acad. Nat. Sci. Philad., Ixxviii, (1926), 

 P- -'73- 

 Pseudorhombus dentaitis, Perugia, l8gi, Ann. Mus. Stor. nat. Genova, (2) x [.xxx], p. 629. 

 Faralichthys brasiliensis (part), Ribeiro, 1915, Arch. .Mus. nac. Rio de J., xvii, Heterosoraata, p. 15. 

 Xysireurys ribeiroi. Fowler and Bean, 1923, Proc. U.S. Nat. Mus., Ixiii (19), p. 26. 



Depth of body 2\ to 2| in the length, length of head 3J to nearly 4. Upper 

 profile of head straight or slightly concave. Snout longer than eye, diameter of which 

 is 6 to 7 in length of head and greater than interorbital width ; eyes separated by a 

 flat space, their anterior margins about level- Maxillary extending to a httle beyond 

 posterior edge of eye, length a little more than 2 in that of head : lower jaw somewhat 

 projecting, i§ to ij in head. Teeth rather small, canines of moderate siEe. i5 or 

 17 gUl-rakers on lower part of anterior arch. Scales all cycloid ; 90 to 100 in lateral 

 line; very few supplementary- scales. Dorsal 70-74 (77) ; commencing above posterior 

 nostril of bhnd side and just in front of eye. Anal 52-57. Pectoral of ocular side 

 with II rays, length 2\ to 2 J in that of head. Caudal double-truncate; caudal 

 peduncle more than twice as deep as long. Brownish, mottled and spotted with 

 darker, and sometimes also with pale spots ; pectoral fin not very distinctly barred. 



Type. — Not traced. 



Distribution. — Coasts of Brazil, Uruguay and Argentina. 



Specimens Examined : 



2 (227, 275 mm.). Rio de Janeiro. Mus. Comp. Zool. 



3 (105-325 ,, )- Rio Grande do Sul. Ihering. 



I (170 mm.). Montevideo. Stanford Univ. 



I (210 „ ), skin. Bahia Blanca. "Beagle." 



' The fact that Jenyns quotes Valenciennes' name in 1842 appears to be due to the earlier 

 publication of the .^tlas of D'Orbigny's voyage. 



