Buscar
Mostrando ítems 101-110 de 3156
It’s not what it looks like: molecular data fails to substantiate morphological differences in two sea hares (Mollusca, Heterobranchia, Aplysiidae) from southern Brazil
(Springer, 2014-11)
Species of sea hares have been recognized traditionally based on morphological traits, mainly the radula, external coloration, and reproductive anatomy. However, recent studies have shown substantial color variation in ...
Study of the venom glands in Ectatomma quadridens (Hymenoptera: Formicidae). Evolutionary hypothesis in subfamily ponerinae
(2005-06-01)
The venom glands of worker ants of the species Ectatomma quadridens morphologically resemble an elongated sac or reservoir ending in a narrower portion that has the function of releasing the secretion to the exterior. Two ...
A three-dimensional approach to school typology using vertical scanning multibeam sonar
(Fisheries Research, 2007)
Fish school typology is usually based on vertical echosounding images. These images provide little objective information on school structure (internal characteristics) or morphology (external characteristics). This paper ...
Morphology of the spermathecae of twelve species of Triatominae (Hemiptera, Reduviidae) vectors of Chagas disease
(2017-12-01)
Trypanosoma cruzi, the etiological agent of Chagas disease, is transmitted by triatomines that have been described in a large number of studies. Most of those studies are related to external morphology and taxonomy, but ...
Biological, morphological and morphometric studies of Triatoma melanocephala Neiva & Pinto, 1923 (Hemiptera: Reduviidae: Triatominae)
(2015-01-01)
Triatoma melanocephala Neiva & Pinto is found in the Brazilian states of Bahia, Paraíba, Pernambuco, Rio Grande do Norte, and Sergipe. In addition to the species' specific description, eight other articles on this insect ...
Tadpoles of Three Species of the Rhinella granulosa Group with a Reinterpretation of Larval Characters
(Sociedade Brasileira de Herpetologia, 2020-03)
The Rhinella granulosa group currently comprises 14 species of Neotropical toadswhose monophyly is strongly supported by several synapomorphies, including adistinctive set of larval characters. Recently, the identity of ...