The systematics and distribution of Pseudemys scripta in Mexico and Central America are poorly understood.
The application of Etheridge's findings to anoline systematics must await the completion of his study.
The systematics of Setina have been much controverted, but no one I believe doubts that aurita and ramosa are forms of one species.
To those permanently engaged in systematics it may well bring despair.
In the latter paper I made reference to a future account (this one) that would deal with the systematics and biology of the entire genus.
If the presence of ventrolateral glands in breeding males is ignored, a student of salientian systematics might derive the Ptychohyla euthysanota group from a hylid stock containing Hyla miotympanum and Hyla mixomaculata.
Systematics and the origin of species from the viewpoint of a zoologist.
The systematicsof this genus is currently under study by Ronald H.
The systematics of the subfamily Ornithodorinae (Acarina: Argasidae).
Doctoral dissertation, Department ofSystematics and Ecology, University of Kansas, Lawrence.
Our systematics is one of the two chief parts of biology; what are called comparative anatomy and comparative embryology are its methods.
Of course systematics would then be able to assume a truly rational character at some future date: there might one day be found a principle to account for the totality of possible[160] forms, a principle based upon the analysis of entelechy.
Of course there would be a law insystematics in any case; and therefore systematics in any case would be rational in principle.
Systematics of organisms therefore would be in fact systematics of entelechies, and therefore organic forms would be *formae essentiales*, entelechy being the very essence of form in its specificity.
Lamarck's scientific, as distinguished from his speculative work, was exclusively systematic, and it was systematics of a very high order.
Carus, who was convinced of the validity of physiological methods within their proper sphere, drew a sharp distinction between systematics and morphology on the one hand, and physiology on the other.
