...Our small samples of birds and reptiles from the island show nodetectable morphological differentiation from adjacent populations... 
Robert K Selander 「Vertebrates from the Barrier Island of Tamaulipas, México」
...stylifer, the turkey louse) is of greatinterest from a morphological and developmental point of view, as theantennæ are described and figured by Denny as being "in the malescheliform (Fig...
Alpheus Spring Packard 「Our Common Insects」
...He explained that he relied upon the morphological charactersof the individual animal instead of upon the morphological charactersof a population of animals...
E. Raymond Hall 「Comments on the Taxonomy and Geographic Distribution of Some North American Marsupials, Insectivores and Carnivores」
...The history of the genus dates back to the early late Pliocene,but morphological change since then has been slight insofar as canbe judged from lower jaws...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...The combination of morphological and behavioral charactersin the living pygmy mice warrants generic status for them...
Robert L. Packard 「Speciation and Evolution of the Pygmy Mice, Genus Baiomys」
...On the basis of the morphological characters, as pointed outfor Hyla robustofemora by Taylor (1940:392), Hyla crassa is amember of the Hyla bistincta group...
William E. Duellman 「A Review of the Frogs of the Hyla bistincta Group」
...—Five species, two of which are made up of two subspecies,arranged in two groups of species on the basis of morphological characters ofadults and tadpoles and on the basis of breeding calls...
William E. Duellman 「A Review of the Middle American Tree Frogs of the Genus Ptychohyla」
...The most obvious morphological difference isthat the head is noticeably narrower in H...
William E. Duellman 「Middle American Frogs of the Hyla microcephala Group」
...The proof of it lies in the whole morphological literature of thelast three decades...
Ernst Haeckel 「The Evolution of Man」
...They have, however, only a physiological, not a morphological,importance; they have no direct influence on the formation of the fœtus...
Ernst Haeckel 「The Evolution of Man」
...These morphological facts are in perfect harmony with the familiarphysiological truth that the child inherits from both parents, and that on theaverage they are equally distributed...
Ernst Haeckel 「The Evolution of Man」
...But the milk-gland of the mammal has a great morphological interest fromanother point of view...
Ernst Haeckel 「The Evolution of Man」
...At this stage man is a higher vertebrate, but shows noessential morphological difference from the embryos of the mammals, the birds,the reptiles, etc...
Ernst Haeckel 「The Evolution of Man」
...The primitive worms ( Platodaria) are very small flat worms of simpleconstruction, but of great morphological and phylogenetic interest...
Ernst Haeckel 「The Evolution of Man」
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