منابع مشابه
Pseudostertagia bullosa (Nematoda: Trichostrongyloidea) in artiodactyl hosts from North America: redescription and comments on systematics.
A relationship for Pseudostertagia bullosa within the trichostrongyloids has been enigmatic or unresolved. Studies of the synlophe in males and females of P. bullosa revealed a tapering system anterior to the deirids and a pattern of parallel ridges extending to near the caudal extremity in both lateral and median fields. Structurally, the synlophe differs considerably from that seen among the ...
متن کاملSystematics of Sturnira (Chiroptera: Phyllostomidae) in Ecuador, with comments on species boundaries.
Molecular and morphological analyses of variation often conflict with historical species descriptions based on a few characters and small samples sizes. Here we present a molecular phylogeny together with a quantitative morphologica analysis of the species in Sturnira in Ecuador. The 438 terminal taxa or organisms included in the anlaysis occur within a total of 10 ingroup lineages, which conta...
متن کاملInguinal Amplexus in Bufo fastidiosas , with Comments on the Systematics of Bufonid Frogs
outgroup comparison, it would be interesting to find pleurodont tooth attachment in the hatchling second and third generation teeth. Such was not the case, however, except perhaps for the premaxillary teeth (of which there are three on each side), where the distinction of pleurodonty and acrodonty becomes somewhat blurred. Harrison (1901, 1901-1902) noted a variable and vestigial vomerine denti...
متن کاملRecircumscription and taxonomic revision of Siderasis, with comments on the systematics of subtribe Dichorisandrinae (Commelinaceae)
A new circumscription and a total of six microendemic species, four of them new to science, are herein presented for Siderasis, based on field and herbaria studies, and cultivated material. We provide an identification key to the species and a distribution map, description, comments, conservation assessment, and illustration for each species. Also, we present an emended key to the genera of sub...
متن کاملComments on the Osteology and Systematics of the New Zealand Passerines of the Genus Mohoua
The osteology of the New Zealand genera Mokoua and Finschia shows that they are definitely not referable to the Pachycephalinae or any other group within the corvine assemblage. This is in contrast to Sibley and Ahlquist's original interpretation of their DNA-DNA hybridization studies and supports a recent reanalysis of that data by critics, who concluded that these genera belong among die "Pas...
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ژورنال
عنوان ژورنال: Evolution
سال: 1959
ISSN: 0014-3820
DOI: 10.1111/j.1558-5646.1959.tb03030.x