2620 Bulletin //, United States National Museum, 



1021. HIPPOGLOSSINA, Steiudachner. 

 Hippoglossina, STEINDACHNEK, IchtL. Beitrago, v, 13, 1876 (macropt). 



Teeth rather small, uuiserial, no canines; lateral line with a strong arch 

 in front, and with no accessory dorsal branch; anal spine obsolete; body 

 indifferently dextral or sinistral (in some species at least). Scales ctenoid; 

 dorsal tin beginning above pupil; gill rakers rather long and slender. 

 This genus is intermediate between Hippoylossoides and Paralichthys, 

 agreeing with the former in the insertion of the dorsal and in general 

 appearance, and with the latter in the direction of the lateral line. Sev- 

 eral species are now known. Some of them are dextral, and perhaps all 

 of them are normally so, or perhaps, as in the case of Xystrcurys liolepis, 

 all are indifferently dextral or sinistral. (A diminutive of Hippoylossus, 

 the halibut.) 



a. Mouth large, the maxillary extending to opposite posterior margin of eye, 2 in head ; 



gill rakers numerous, 4 + 13; dorsal rays about 68; anal 53. STOMATA, 2986. 



aa. Mouth moderate, the maxillary extending to opposite middle of pupil, about 2 in 



head. 



b. Dorsal rays about 66; anal 52; depth of body 2^ in length. MACROPS, 2987. 



bb. Dorsal rays about 62; anal 48; depth of body 2f in length; gill rakers 2+8 



or 9. BOLLMANI, 2988. 



2986. HIPPOGLOSSINA STOMATA, Eigenuianu & Eigenmann. 



Head 2 to 3 in length ; depth 2| to 2|. D. 67 to 70; A. 52 to 54; scales 

 80. Sinistral. Eye (not orbit) large, 5 in head; lower orbit slightly in 

 advance of upper; interorbital a narrow ridge. Form, elongate elliptical, 

 the profile depressed over the eye. Mouth large, maxillary extending to 

 posterior margin of eye, as long as or longer than pectoral, 2 in head; 

 lower jaw about If in head. Teeth small, uniserial; anterior uares of 

 each side with long dermal flaps, ^cales of left side all ctenoid, those of 

 right side cycloid on anterior half or two-thirds of body; middle third of 

 iuterorbital naked, anterior and posterior thirds scaled. Gill rakers 4 -f- 

 13 or 14. Dorsal beginning over middle of eye, anterior rays with but 1 

 or 2 scales, rest scaled to near tip, all but last 8 rays simple; anal similar 

 to dorsal, with a strong procumbent spine ; highest dorsal and anal rays 

 about 3 in head ; pectoral of colored side about 2 in head, that of blind 

 side shorter; caudal double truncate, 5 to 5 in length. Brown, strongly 

 tinged in life with robiii's-egg blue; numerous spots of light blue and 

 light and dark brown; 5 pairs of large, dark-brown ocelli along dorsal 

 and ventral parts of eyed side, the alternate ones longer and more con- 

 spicuous ; fins colored like body, profusely mottled with light and dark ; 

 sinistral pectoral barred ; a dark-brown spot above and below on caudal 

 peduncle just in front of caudal, showing conspicuously on blind side. 

 The eggs are probably pelagic ; they are transparent, and measure 1.2 mm. 

 in diameter; the single oil globule measures 0.16 mm. Coast of southern 

 California; 2 specimens obtained in deep water off San Diego, November 

 7, 1889, both females, 1 with ripe eggs. (Eigemnann & Eigenmann.) 

 (6ro/*aro, large mouthed.) 



Hyppoglossina stomata, EIGENMANN <fc EIGENMANN, Proc. Cal. Ac. Sci. 1890, 22, San Diego. 

 (Coll. C. H. Eigenmann.) 



