. Contributions to North American Ichthyology [microform] : based primarily on the collections of the United States National Museum. Ichthyology; Fishes, Fresh-water; Fishes; Ichtyologie; Poissons d'eau douce; Poissons. .in -- ANALYSIS OF SPECIES OF MYX08T0MA. 115 ANALYSIS OP SPECraS OF MYX08T0MA. ' Lips distinctly plicate. t Lower lip full, its posterior edge truncate, not infolded and " yy-shaped". a. Species with tbo body distinctly compressed, the depth 3^ to nearly 5in length, 6. Dorsal fin largely developed, its rays 15 to 18 in number: head rather large, 3f to 4J in length, br
. Contributions to North American Ichthyology [microform] : based primarily on the collections of the United States National Museum. Ichthyology; Fishes, Fresh-water; Fishes; Ichtyologie; Poissons d'eau douce; Poissons. .in -- ANALYSIS OF SPECIES OF MYX08T0MA. 115 ANALYSIS OP SPECraS OF MYX08T0MA. ' Lips distinctly plicate. t Lower lip full, its posterior edge truncate, not infolded and " yy-shaped". a. Species with tbo body distinctly compressed, the depth 3^ to nearly 5in length, 6. Dorsal fin largely developed, its rays 15 to 18 in number: head rather large, 3f to 4J in length, broad above: month large, with full lips: eye rather large: body deep, strongly compressed, the back somewhat elevated, the depth about 3J in length: dorsal fin high and large, larger than in anj other species of tho genus, the first ray about as lor-' as the base of th fin : scales 5-43-4, quite large: coloration very pale and silvery, the lower fins white carpio, 3. bb. Dorsal fin moderate, its rays I'i to 14 in number, c. Scales large, 41 to 50 in the course of the lateral lino. d. Caudal fin normal, the two lobes about equal and similarly colored, e. Head singular in form, much shortened, the muzzle very abruptly de- curved, descending almost peqiendicularly in front of the eye: the head wedge-shaped from behind forwards, and less so from below upwards, its sides snbvertical and the lower cross-diameter of the head greater than the upper. /. Eye very large, Lore than one-third the length of the side of the head (in an individual of six inches in length): lips thin, very faintly plicate: width of head through the opercles greater than the thickness ot the body: head 4J in length ; depth about the same: dorsal rays 13: scales (J-43-5: body shortish, closely com- pressed, the back somewhat elevated, and the caudal peduncle unusually long in proportion : color smoky-bine; lower fins white: size probably small kuryops, 4. te. Head normal in form, not as above. g. Mouth moderate or
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Keywords: ., bookce, bookdecade1870, booksubjectfishes, booksubjectichthyology
