Buscar
Mostrando ítems 1-7 de 7
Comparative spermatozoal ultrastructure and molecular analysis in dromiid crabs and their phylogenetic implications for Dromiidae and Podotremata (Decapoda: Brachyura)
(2018-11-01)
We described the spermatozoal ultrastructure and conducted a molecular analysis of Dromiidae Hypoconcha parasitica, Hypoconcha arcuata, Moreiradromia antillensis and Dromia erythropus. To elucidate the relationship between ...
From copula to fertilization: The reproduction of primitive crab Hypoconcha parasitica (Linnaeus, 1763) (Podotremata: Dromiidae)
(Wiley-Blackwell, 2022-04-08)
This study describes the mating behavior of Hypoconcha parasitica under laboratory conditions highlighting the spermathecal morphology and focusing on the seminal fluid storage and release of spermatozoa. The pairs were ...
Seminal fluid production and sperm packaging in dromiid crabs (Brachyura, Podotremata)
(2019-02-01)
Reproductive anatomy, including sperm storage structures and sperm transfer, is an important feature used to analyze phylogenetic relationships among taxa. We describe the male reproductive anatomy, seminal fluid production ...
Zoés, megalopa e estágios juvenis iniciais de Cryptodromiopsis antillensis (Stimpson, 1858): implicações sobre a monofilia dos Dromiacea (Crustacea: Decapoda: Brachyura)
(Universidade Federal do Rio de JaneiroBrasilMuseu NacionalPrograma de Pós-Graduação em Ciências Biológicas (Zoologia)UFRJ, 2018)
A hypothesis about the origin of sperm storage in the Eubrachyura, the effects of seminal receptacle structure on mating strategies and the evolution of crab diversity: How did a race to be first become a race to be last?
(Elsevier Gmbh, 2011-10)
The origins and evolution of sperm storage in Brachyura are enigmatic: sperm is either stored in seminal receptacles, accessible via the vulvae on the sixth thoracic sternite, or in spermathecae at the border between the ...
Sistema reprodutor masculino e espermiotaxonomia em Dromiidae : existe um só padrão de produção de fluido seminal, empacotamento do espermatozoide e transferência espermática em caranguejos?
(Universidade Estadual Paulista (Unesp), 2018-03-26)
A família Dromiidae é considerada basal em Brachyura, incluída na seção Podotremata Guinot, 1977, sendo pouco conhecida do ponto de vista histo-morfológico e ultraestrutural. Na presente dissertação, apresentamos a ...
Comparativemorphology of the female genital ducts of seven eubrachyuran crabs (Saint Laurent, 1980)
(Wiley-Blackwell, 2017-04-01)
Three brachyuran groups can be defined based on genital orifices' location: coxae-Podotremata, coxal (males) or sternal (females)-Heterotremata and sternal-Thoracotremata. Aiming to compare Heterotremata (three species) ...