Morfología del cráneo de Inia geoffrensis humboldtiana Pilleri & Gihr, 1977 (Cetacea: Iniidae): un análisis morfométrico y taxonómico

@article{Caizales2020MorfologaDC,
  title={Morfolog{\'i}a del cr{\'a}neo de Inia geoffrensis humboldtiana Pilleri \& Gihr, 1977 (Cetacea: Iniidae): un an{\'a}lisis morfom{\'e}trico y taxon{\'o}mico},
  author={Israel Ca{\~n}izales},
  journal={Graellsia},
  year={2020},
  volume={76},
  pages={115}
}
La morfología y anatomía de las dos subespecies actuales de Inia geoffrensis (Blainville, 1817) son muy similares. Debido a esto varios investigadores han evaluado la validez taxonómica de éstas. Con el fin de proporcionar información adicional para aclarar esta situación, se analizó la forma, el aspecto externo y las proporciones en 20 cráneos del delfín del río Orinoco, Inia geoffrensis humboldtiana Pilleri & Gihr, 1977. Para el análisis morfométrico, se seleccionaron 28 caracteres anatómicos… 

References

SHOWING 1-10 OF 24 REFERENCES

NOTES SUR LES HOLOTYPES DE INIA GEOFFRENSIS GEOFFRENSIS (DE BLAINVILLE, 1817) ET DE INIA GEOFFRENSIS BOLIVIENSIS D’ORBIGNY, 1834 (CETACEA, PLATANISTIDAE)

Cette sous-espece est caracterisee, entre autres, par un nombre de dents superieur a 30 pour chaque rangee dentaire.

Non-metric characters in two species of Sotalia (Gray, 1866) (Cetacea, Delphinidae).

The fluvial species seems to present neoteny (or maintenance of juvenile characters in adults) in relation to the position of the pterygoids and in development of lacerate anterior foramen in riverine species.

GEOGRAPHIC PATTERNS OF VARIATION IN OFFSHORE SPOTTED DOLPHINS (STENELLA ATTENUATA) OF THE EASTERN TROPICAL PACIFIC OCEAN

The geographic patterns found for cranial morphology and environmental measures are strongly clinal and in general congruent, suggesting that oceanographic conditions in part determine trends in morphological characteristics of spotted dolphins.

Osteological differences between two sympatric forms of bottlenose dolphins (genus Tursiops) in Chinese waters

Results provided strong evidence that the two sympatric forms of Tursiops in Chinese waters are isolated reproductively and do not support the current view of a monotypic genus.

Living between rapids: genetic structure and hybridization in botos (Cetacea: Iniidae: Inia spp.) of the Madeira River, Brazil

A large number of dolphins collected in the rapids region above the Teotonio waterfall belong to a management unit (MU) distinct from the I. boliviensis MU occupying Bolivian rivers, and population structuring between these localities is investigated.

Looking to the past and the future: were the Madeira River rapids a geographical barrier to the boto (Cetacea: Iniidae)?

It is concluded that gene flow is uni-directional from the upstream to the downstream group, and the rapids do not delimit the distribution of I. boliviensis and other aquatic taxa.

Diagnosability and description of a new subspecies of Indo-Pacific humpback dolphin, Sousa chinensis (Osbeck, 1765), from the Taiwan Strait

Together, the evidence strongly demonstrated that the Taiwanese humpback dolphin population is differentiated at the subspecies level and on an evolutionary trajectory that is independent from that of dolphins from adjacent waters of mainland China.

Taxonomy of the Common Dolphins of the Eastern Pacific Ocean

The Pacific population of D. delphis has a somewhat shorter rostrum than the Atlantic population, and is perhaps subspecifically different, and a thorough analysis of the entire genus Delphinus is needed before the relationship of all the populations can be understood and names properly applied.

A New Species of River Dolphin from Brazil or: How Little Do We Know Our Biodiversity

The discovery of a new species of a river dolphin from the Araguaia River basin of Brazil, the first such discovery in nearly 100 years, is reported, which is diagnosable by a series of molecular and morphological characters and diverged from its Amazonian sister taxon 2.08 million years ago.

Habitat‐associated morphological divergence in two Neotropical fish species

We examined intraspecific morphological diversification between river channel and lagoon habitats for two Neotropical fish (Bryconops caudomaculatus, Characidae; Biotodoma wavrini, Cichlidae). We