Buscar
Mostrando ítems 1-10 de 5843
Morphological variation of the female reproductive organs of the bat Artibeus lituratus during its different reproductive phases
(2019-08-01)
Artibeus lituratus is one of the most recognized bat species in the neotropics, probably due to its high abundance in urban areas. Despite its wide distribution, the morphology and physiology of its reproductive organs ...
Ovarian morphology and folliculogenesis and ovulation process in the flat-faced fruit-eating bat Artibeus planirostris and the Argentine brown bat Eptesicus furinalis: A comparative analysis
(2019-07-01)
The Neotropical bat species Artibeus planirostris and Eptesicus furinalis present a different morphology of the female reproductive organs: the first presents a simplex uterus, while the second presents a bicornuate uterus, ...
Dwarf gynes in Nannotrigona testaceicornis (Apidae, Meliponinae, Trigonini). Behaviour, exocrine gland morphology and reproductive status
(1997-05-01)
The behaviour and morphology of dwarf gynes produced in worker-sized cells of normal colonies in Nannotrigona testaceicornis (Meliponinae, Trigonini) were studied. The behaviour of these dwarf virgin queens was the same ...
Rhyncophorus palmarum L. (Linnaeus, 1758): A Morphological and Histological Study of the Female Reproductive System
(Wiley-Blackwell, 2011-09-01)
Rhyncophorus palmarum (Coleoptera) is a pest of great economic importance because of the damage caused in the plants of the Palmae family. This study showed that the female reproductive system of this beetle is composed ...
Male Reproductive Apparatus and Spermatophore Morphology of the Hermit Crabs Pagurus brevidactylus and P. criniticornis (Anomura, Paguridae)
(WILEY-BLACKWELL, 2011)
Spermatozoa of most crustacean species are nonmotile and are packed into spermatophores. In Decapoda, spermatophores are highly variable in morphology and can be useful in the solving of taxonomic and systematic questions, ...
Comparative testis morphology of Neotropical anurans
(2015-07-01)
Anuran testes have generally similar germinative and somatic anatomical components, but their morphology varies among species groups. However, little is known about how environmental and evolutionary factors influence ...
Morphology of the male reproductive system of freshwater prawn Macrobrachium carcinus (Decapoda, Caridea): Functional and comparative aspects
(2020-04-01)
Testes and vasa deferentia are parts of the male reproductive system of decapod crustaceans. Both organs show morphological differences among decapod species in terms of anatomical and histological patterns reflecting the ...
DESCRIPTION OF THE MALE REPRODUCTIVE SYSTEM OF THE HERMIT CRAB CALCINUS TIBICEN (DECAPODA: ANOMURA: DIOGENIDAE)
(CRUSTACEAN SOC, 2009)
We describe the male reproductive system of the intertidal hermit crab Calcinus tihicen, with emphasis on the sexual apparatus, spermatophore, and spermatozoa. The crabs were collected on the rocky shore of Praia Grande ...