Note sur la classification des Annélides

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#1Isabel C. Molina-Acevedo (UMT: Universiti Malaysia Terengganu)H-Index: 4
#2Izwandy Idris (UMT: Universiti Malaysia Terengganu)H-Index: 5
Nicidion Kinberg, 1865, and Paramarphysa Ehlers, 1887, were previously recognized as abranchiate groups of Eunice Cuvier, 1817, and Marphysa de Quatrefages, 1865, respectively. However, recent studies have demonstrated Nicidion is monophyletic, and the genus was redefined. Likewise, the character presence/absence of peristomial cirri, which traditionally was used to differentiate between Nicidion and Paramarphysa, is now considered non-diagnostic. Subsequently, the type species of Paramarphysa w...
#1Victor Corrêa Seixas (UFRJ: Federal University of Rio de Janeiro)H-Index: 5
#2Tatiana Menchini Steiner (State University of Campinas)H-Index: 7
Last. Paulo Cesar Paiva (UFRJ: Federal University of Rio de Janeiro)H-Index: 17
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#1Anne Weigert (Leipzig University)H-Index: 11
#2Christoph Bleidorn (Leipzig University)H-Index: 33
Annelida is an ecologically and morphologically diverse phylum within the Lophotrochozoa whose members occupy a wide range of environments and show diverse life styles. The phylogeny of this group comprising more than 17,000 species remained controversial for a long time. By using next-generation sequencing and phylogenomic analyses of huge data matrices, it was finally possible to reach a well-supported and resolved annelid backbone tree. Most annelid diversity is comprised in two reciprocal mo...
#1Antonio J.M. Peixoto (Federal Fluminense University)H-Index: 1
#2Cinthya S. G. Santos (Federal Fluminense University)H-Index: 6
The amphinomid polychaete Linopherus cf. canariensis was recorded for the first time in the coast of Rio de Janeiro (South-east Brazil). In 2011, a total of 15 specimens were collected in the intertidal zone of Itaipu Beach (Niteroi) in dead Encope emarginata test fragments. In this study, the specimens are described, and a brief discussion about their morphological variation and invading potential is provided.
The collecting trips by Orsted and Kroyer in Central and South America resulted in a series of papers by Grube, the Annulata orstediana which contained the proposal for seven genera and descriptions for 84 species. There are some problems dealing with the correct number of contributions, their publication dates, the correct citation for the authors for each species name and sometimes even for the type locality. In order to improve the current situation, we have consulted the original publication...
#1José Eriberto De Assis (UFPB: Federal University of Paraíba)H-Index: 6
#2Martin Lindsey Christoffersen (UFPB: Federal University of Paraíba)H-Index: 18
The Maldanidae annelid worms are reviewed and the phylogenetic relationships of their subgroups provided, based on Hennigian principles and maximum parsimony. Characters were coded as binary and multistate (transformation series). We used 33 terminal taxa (species), and 50 characters. Characters were treated as unordered and of equal weight, and analysis was run in TNT. Three equally most-parsimonious trees were obtained with heuristic searches, with lengths of 64 steps; CI = 0.95, and RI = 0.98...
#2Richard E. Petit (FMNH: Field Museum of Natural History)H-Index: 2
#1María Ana Tovar-Hernández (UNAM: National Autonomous University of Mexico)H-Index: 13
The presence of a caruncle in the polychaete family Sabellidae is documented. It is placed dorsally above the mouth, between the dorsal lips, supported with hyaline cartilage constituted by a homogeneous eosinophilic matrix and it is innervated directly from the cerebral ganglion. The caruncle surface has four longitudinal ciliated bands; the cilia from the lateral bands are hypertrophied, wider distally, tongue‐like, forming a ciliated curtain or membranella. The genus Megalomma is emended base...
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