..The fishes of Illinois . very band at base; ventrals and pectorals a smoky greenishgray. Head small, slender, subconic, its length to 4 in body, itsgreatest depth less than in /. anguilla, to 5 .2 in body; interorbital spaceflat or slightly convex; occipital region and shoulders gently rounded andcovered with thin, close-fitting skin; mouth more nearly terminal than inanguilla, the upper jaw only slightly longer than the lower; lips somewhatthicker than in preceding species; maxillary barbels long and slender,reaching past gill-opening; eye oval, lying above median axis of body andne


..The fishes of Illinois . very band at base; ventrals and pectorals a smoky greenishgray. Head small, slender, subconic, its length to 4 in body, itsgreatest depth less than in /. anguilla, to 5 .2 in body; interorbital spaceflat or slightly convex; occipital region and shoulders gently rounded andcovered with thin, close-fitting skin; mouth more nearly terminal than inanguilla, the upper jaw only slightly longer than the lower; lips somewhatthicker than in preceding species; maxillary barbels long and slender,reaching past gill-opening; eye oval, lying above median axis of body andnearer upper than lower surface of head; diameter of orbit 4 to 8 in fin high, placed a little nearer snout than adipose, distance fromsnout to dorsal to in length; dorsal spine usually rather morerobust and shorter than in /. furcatus, to in head, its posterioredge usually almost smooth. Caudal fin deeply forked, the upper lobelonger and more slender than the lower. Anal fin short, composed of 24. ICTALURUS CHANNEL-CATS 181 to 29 rays, including rudiments, its base from 3 .4 to 3 . 7 in length of body,the free Pectoral spine about equal in length to dorsal;humeral process one half length of pectoral spine.


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Keywords: ., bookcentury1900, bookdecade1900, bookidcu31924, booksubjectfishes