. Fishes. Fishes. The Colors of Fishes 83 among the fronds of ulva, and olive-green among Sargassum or fucus, the markings and often the form corresponding to the nature of the algse in which the species makes its home. Sexual Coloration. — In many groups of fishes the sexes are differently colored. In some cases bright-red, blue, or black markings characterize the male, the female having similar marks, but less distinct, and the bright colors replaced by Fig. 65.—Lizard-skipper, AlHcus saliens (Forster). A blenny which lies out of water on lava-rooks, leaping from one to another with
. Fishes. Fishes. The Colors of Fishes 83 among the fronds of ulva, and olive-green among Sargassum or fucus, the markings and often the form corresponding to the nature of the algse in which the species makes its home. Sexual Coloration. — In many groups of fishes the sexes are differently colored. In some cases bright-red, blue, or black markings characterize the male, the female having similar marks, but less distinct, and the bright colors replaced by Fig. 65.—Lizard-skipper, AlHcus saliens (Forster). A blenny which lies out of water on lava-rooks, leaping from one to another with great agility. From nature; specimen from Point Distress, Tutuila Island, Samoa. (About one- half size.) brown, or gray. In a few cases, however, the female has marks of a totally different nature, and scarcely less bright than those of the male. Nuptial Coloration. — Nuptial colors are those which appear on the male in the breeding season only, the pigment after- wards vanishing, leaving the sexes essentially alike. Such colors are found on most of the minnows and dace {CyprinidcE) of the rivers and to a less degree in some other fresh-water fishes, as the darters {Etheostomina) and the trout. In the. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Jordan, David Starr, 1851-1931. New York, H. Holt and Company
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