. Contributions to Canadian biology . ressed and gradually taperingbackwards to the tail. Depth 4 • 3 to 5 • 2. Head very stout, its length 3 • 5 to 3 • 8 inthe length of the body. Eye small, 8-1 to 11*5 in head. Anterior nares openingon shoit tubes. Coloration above and on sides dark olive green, with more or lessdefinite darker mottlings. A black spot on the upper margin of the tail, surroundedin the male by an irregular band or ring of yellow or orange. Lower parts whiteor yellowish. Opercle with two fairly distinct bands of black extendmg backwardsfrom the eye. Lower jaw and jugular plate
. Contributions to Canadian biology . ressed and gradually taperingbackwards to the tail. Depth 4 • 3 to 5 • 2. Head very stout, its length 3 • 5 to 3 • 8 inthe length of the body. Eye small, 8-1 to 11*5 in head. Anterior nares openingon shoit tubes. Coloration above and on sides dark olive green, with more or lessdefinite darker mottlings. A black spot on the upper margin of the tail, surroundedin the male by an irregular band or ring of yellow or orange. Lower parts whiteor yellowish. Opercle with two fairly distinct bands of black extendmg backwardsfrom the eye. Lower jaw and jugular plate with dark mottlings. Males m the breed-ing season have the dorsal and caudal fins greenish black, but the lower fins are brightemerald green, and have a band of green connecting them on each side of the the female all the fins are dark. Dorsal fin very long with 48 (to 50) rays. Analwith 10 or 11 rays. Scales large, with more or less angular edges, 8 or 9, 67 to69, 11 to 14. a> o OS ae 03 a o-a > ■co o0 Ci3 THE FISHES OF GEORGIAN BAY 13 SESSIONAL PAPER No. 39b Though a strong and vigorous swimmer, this fish is commonly seen lurkingamong the weeds in the shallow water of swamps, lying motionless on the bottom,or moving stealthily along by rhythmic undulations of the dorsal fin. It feeds onswamp living fishes such as minnows, suckers, perch or the young of the gamefishes, but will eat crayfish, mud-puppies, or insects. The spawning period is from May 24th to June 1st. The eggs are depositedin large open, but fairly deep depressions, scooped out of the mud among the flagroots by the male fish. The nest is also guarded during the hatching period bythe male, which at this time will be found lying motionless in the bottom of thedepression, unless disturbed by the presence of minnows or other small fish on thelook-out for food. Young dogfish of about two inches in length are sometimes seenin schools, swimming about in the swamps accompanied by the parent fi
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Keywords: ., bookcentury1900, bookdecade1900, booksubjectnatural, bookyear1901
