...By late July scales are well developed and the embryo is more snakelike in appearance, but pigmentation is still absent...
Ray D. Burkett 「Natural History of Cottonmouth Moccasin, Agkistrodon piscovorus (Reptilia)」
...The variation in intensity of pigmentation possibly can be correlated with environmentalconditions, especially the amount of light...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...In allfour stages, spiracle persistent, and pigmentation resembling that of earlystages...
William E. Duellman 「Neotropical Hylid Frogs, Genus Smilisca」
...31600 and 31581 are suffused with cinnamoneous pigmentation, but represent the grayish phase, as described by Ridgway (1914:729)...
Emil K. Urban 「Birds from Coahuila, Mexico」
...leprus from Los Tuxtlas have graybellies; some have heavier pigmentation than the specimen from SanLorenzo...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...The intensity of thedorsal pigmentation is subject to rather rapid change...
William E. Duellman 「A Distributional Study of the Amphibians of the Isthmus of Tehuantepec, Mexico」
...Theonly noted variation in color is the intensity of brown pigmentation on thecaudal musculature, which in most specimens is sufficiently dense to make thetail look brown...
William E. Duellman 「A Review of the Middle American Tree Frogs of the Genus Ptychohyla」
...Specimens having dark stripes on thebody always have black or dark brown pigmentation on the first, 4th and7th dorsal scale-rows...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...In some there is dark pigmentation on the 2nd, 3rd,8th and 10th rows of scales...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...In specimens in which theparavertebral stripes do not begin on the anterior-most part of the body, thereis no paravertebral pigmentation anteriorly...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...Conophis lineatus concolor, onwhich the dark pigmentation on the body apparently is secondarilylost, is an exception...
John Wellman 「A Revision of Snakes of the Genus Conophis (Family Colubridae, from Middle America)」
...
Hyla misera possibly is allied to other small yellowish tan SouthAmerican Hyla that lack dark pigmentation on the thighs...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...Hyla misera possibly is allied to other small yellowish tan SouthAmerican Hyla that lack dark pigmentation on the thighs...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...In pigmentation, all three of the hybrids are intermediate betweenthe parental species...
Frank B. Cross 「Five Natural Hybrid Combinations in Minnows (Cyprinidae)」
...4253 is mostly pallid, resembling Gila much morethan Rhinichthys in pigmentation...
Frank B. Cross 「Five Natural Hybrid Combinations in Minnows (Cyprinidae)」
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Payne Emeryville apocrypha
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