92 



Conservation Department 



of eye 0.5 mm; myomeres 15 to vent, 26 behind (incomplete). 

 Inferior month and vent open ; yolk very large, bright yellow in 

 color and covered completely by large, light-colored, very stellate 



Fig. 19. — Stizostedion sp., 7.75 millimeters 



chromatophores, which extend over the heart and the large clear 

 yellow oil globnle. Eye large, blue-black in color. Embryonic 

 marginal fin complete ; small pectorals developed. Only dorsal 

 jngmentation consisting of about 2 large chromatophores between 

 vent and caudal; a well defined line of dark brown spreading 

 chromatophores, almost interlocking, from vent to caudal. 



Older specimens in the same collection have yolk absorbed. In 

 these the large stellate yolk chromatophores persist on yellow 

 stomach region, and last quarter of dorsal aspect has c. 6 others 

 arranged alternately on the two sides. 



Sfizos!e(lion canadevse fjriseum DeKay — Sanger; sand pike; 



gray pike 



Record of Capture. — Two specimens, 13.1 mm. in length, were 

 obtained from the Put-in-Bay hatchery. The 14.5 mm. stage, des- 

 cribed and figured below, was caught in a meter net towed at 

 60 meters in the deep hole off Long Point Bay. 



Description. — Developmental stages, 13.1 mm. Total length 

 18,1 mm ; standard length 12.2 mm ; length of head 3.4 mm ; length 

 to vent 7.6 mm; greatest depth 2.8 mm; diameter of eye 1.0 mm; 

 myomeres 20 to A^ent, c. 21 behind (incomplete). Embryonic 

 marginal originating just before vent and becoming abruptly 

 elevated immediately behind, over the basal elements and sugges- 

 tions of c. 17 rays ; persisting ventrally with basal elements and 

 suggestions of c. 11 rays; no ventrals; pectorals moderate; caudal 

 truncate at this stage. Body rather slender, not much compressed ; 

 small canines in both jaws ; maxillary reaching to hind margin of 

 pupil ; large simple air bladder ; intestine coiled ; vent open, intes- 

 tine ending at a distance from body, at edge of marginal fin. 

 Pigmentation consisting of large stellate chromatophoi-es on jaws 

 and over top and sides of head with angle and posterior margin 

 of preopercle dark ; single series on dorsal aspect, double around 

 fin ; lateral line with ii'i-egular series of large stellate chromato- 

 ])hoi*es, and myomere divisions above and below marked with 

 irr<'gular black lines; few on sides of stomach region, and very 

 (lai-k subsurface patch over air bladder and along dorsal surface 



