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Development of secondary sexual characters in the seabob shrimp Xiphopenaeus kroyeri (Heller 1862) (Crustacea, Decapoda, Penaeidae): a scanning electron microscope study
(Int Science Services/balaban Publishers, 2011-03-01)
The development of secondary sexual characters, the petasma, and thelycum growth were studied in Xiphopenaeus kroyeri. In adult females, the thelycum is a single plate and its anterolateral portion is characterized by a ...
A new South American genus of Iassinae (Hemiptera: Cicadellidae) and additional morphological characters for two Neotropical species of Neobalinae and Nioniinae
(Wiley Blackwell Publishing, Inc, 2019-11)
The new iassine leafhopper genus Ana gen. nov is described, based on the type species Ana doctrix sp. nov. from Argentina, and placed in the tribe Hyalojassini. The new genus is distinguished from other Neotropical ...
Going underwater: Multiple origins and functional morphology of piercing-sucking feeding and tracheal system adaptations in water scavenger beetle larvae (Coleoptera: Hydrophiloidea)
(Oxford University Press, 2021-09)
Larvae of water scavenger beetles (Coleoptera: Hydrophiloidea) are adapted to a wide variety of aquatic habitats, butlittle is known about functional and evolutionary aspects of these adaptations. We review the functional ...
Wanted dead or alive (probably dead): Stem group Polytrichaceae
(Botanical Society of America, 2018-08)
Premise of the Study: The Polytrichaceae are a widespread and morphologically isolated moss lineage. Early attempts to characterize phylogenetic relationships within the family suggested that morphology is not phylogenetically ...
Spermiogenesis and sperm ultrastructure as sources of phylogenetic characters. The example of characid fishes (Teleostei: Characiformes)
(2020-11-01)
Fish sperm morphology is quite diverse. In the last decades our and other studies on Teleostei, mainly on Ostariophysi with emphasis in the Characiformes, have showing that the features of these spermatozoa can be used in ...
Comparative brain morphology of Neotropical parrots (Aves, Psittaciformes) inferred from virtual 3D endocasts
(Wiley Blackwell Publishing, Inc, 2016-06)
Psittaciformes are a very diverse group of non-passerine birds, with advanced cognitive abilities and highly developed locomotor and feeding behaviours. Using computed tomography and three-dimensional (3D) visualization ...
Phylogeny of embiopterans (Insecta)
(Wiley Blackwell Publishing, Inc, 2008-12)
A cladistic analysis of embiopterans, based on 157 species (representing 70% of the known genera) and 186 morphological characters, is presented, as well as a molecular analysis for 22 taxa using genes encoding 16S, 18S ...
Fruit as diagnostic characteristic to recognize Brazilian species of Zornia (Leguminosae, Papilionoideae)
(Magnolia Press, 2015-07-07)
Articles of the lomentaceous fruits encountered in the thirty-six species of Brazilian Zornia species are described, illustrated and compared using scanning electron microscopy and stereomicroscopy. Macro-and micro-morphological ...