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Significance of the sexual openings and supplementary structures on the phylogeny of brachyuran crabs (Crustacea, Decapoda, Brachyura), with new nomina for higher-ranked podotreme taxa.
The penial area proves to be an essential diagnostic feature in Brachyura, with a value comparable to that of the gonopods, and trends towards the coxo-sternal condition are exemplified by multistate characters, varying from a shallow depression to a long groove along expanded sternites 7 and 8, and ultimately their complete, extended junction typifying the most derived coXo-Sternal condition.
A new theoretical approach for the study of monophyly of the Brachyura (Crustacea: Decapoda) and its impact on the Anomura
- M. Tavares
The argument is made that there are four different assumptions hidden within this question, and that only when they are explicitly considered will real progress be made towards a better understanding of brachyuran interrelationships.
A new subfamilial arrangement for the Dromiidae de Haan, 1833, with diagnoses and descriptions of new genera and species (Crustacea, Decapoda, Brachyura)
Une revue de diverses dispositions morphologiques chez les Dromiacea (et plus largement chez les Podotremata) a revele que la classification actuelle des Dromiidae ne refletait pas la richesse des…
Alien Decapod Crustaceans in the Southwestern Atlantic Ocean
- M. Tavares
- Environmental Science
Thirteen marine alien species of decapod crustaceans have been recorded from the Southwestern Atlantic. Five species of alien decapods have established local populations: Charybdis hellerii (Brazil),…
New species and new records of deep-water caridean shrimps from the South Atlantic Ocean (Crustacea, Decapoda)
- M. Tavares
Une nouvelle espece d'une crevette caride de profondeur est decrite de l'Atlantique sud-occidental, Heterocarpus inopinatus n. sp. (Pandalidae). La nouvelle espece se distingue aisement des…
The need of more rigorous assessments of marine species introductions: a counter example from the Brazilian coast.
Taxonomic sufficiency for soft-bottom sublittoral mollusks assemblages in a tropical estuary, Guanabara Bay, Southeast Brazil.
Alpheid shrimps (Decapoda: Caridea) of the Trindade & Martin Vaz Archipelago, off Brazil, with new records, description of a new species of Synalpheus and remarks on zoogeographical patterns in the…
The present study deals with shrimps of the family Alpheidae collected in the shallow waters around the remote Trindade & Martin Vaz Archipelago, situated 1200 km off the coast of Espírito Santo, Brazil, with the vast majority representing new records for the area.
Echinoidea and Holothuroidea (Echinodermata) of the Trindade and Martin Vaz Archipelago, off Brazil, with new records and remarks on taxonomy and species composition
- L. Martins, C. Souto, Joel Braga, M. Tavares
- Environmental ScienceJournal of the Marine Biological Association of…
- 22 November 2016
The Brazilian oceanic islands are impoverished oceanic outposts of the Brazilian Province; nevertheless, endemic species and intraspecific morphological variations compared with the mainland suggest they may also be regions of speciation.
On the morphological differentiation between Libinia spinosa and L. ferreirae (Crustacea: Brachyura: Majoidea: Epialtidae)
It is shown herein that unequivocal identification can be easily achieved based on features of the male and female thoracic sternum, pereiopod dactyli, and infraorbital notch.