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Bonato, L.; Minelli, A.; Drago, L.; Pereira, L.A.. |
The centipedes of the clade Epimorpha change slightly during post-embryonic growth but there is huge variation between species in the maximum body size. New specimens of the rarely collected Neotropical genus Dinogeophilus provide further evidence that this genus comprises the smallest species of the Epimorpha, with a recorded maximum length of 5.5 mm. Up to now Dinogeophilus has been invariantly classified in Geophilidae but different sources of evidence (examination by SEM, cladistic evaluation of morphology, similarity and phylogenetic analysis of molecular data) agree on a very different phylogenetic hypothesis: Dinogeophilus is actually a derived lineage of Schendylidae, only distantly related to Geophilidae, and possibly belong to a mainly... |
Tipo: Article / Letter to the editor |
Palavras-chave: Geophilidae; Miniaturization; Molecular phylogeny; Paedomorphosis; Schendylidae; 42.74. |
Ano: 2015 |
URL: http://www.repository.naturalis.nl/record/578403 |
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Boero, F.; Bouillon, J.; Kubota, S.. |
The newly liberated, immature medusae of H. scandens, Hebella furax, H. muscensis, and the liberable eumedusoid of H. dyssymetra are described. The taxonomy of the medusa-producing Hebellinae is revised in the light of life cycle features. Due to inconsistencies between skeletal and medusan features, Hebellopsis is merged into Hebella. The new genus Anthohebella is proposed for the hebellids with swimming gonophores. All the nominal species referred to Hebella and Hebellopsis are discussed; out of the 45 nominal species referred at least once to Hebella and Hebellopsis, 15 are retained as valid: 11 are referred to Hebella and four to Anthohebella gen. nov.; 12 nominal species are considered conspecific with currently recognized species referred to the... |
Tipo: Article / Letter to the editor |
Palavras-chave: Cnidaria; Hydrozoa; Hydroidomedusae; Leptomedusae; Taxonomy; Paedomorphosis; Life cycle.; 42.72. |
Ano: 1997 |
URL: http://www.repository.naturalis.nl/record/317865 |
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Datovo,Aléssio; Landim,Maria Isabel. |
Ituglanis macunaima, new species, is described from the rio Araguaia basin, Mato Grosso, Brazil. It is distinguished from its congeners by the following combination of characters: posterior fontanel absent; pectoral-fin rays usually i,4; pelvic-fin rays usually i,4; branched caudal-fin rays usually 5,5; mottled color pattern formed by irregular to roundish dark brown spots on whitish background; reduced supraorbital canal with pores s1 and s2 lacking; reduced infraorbital canal with pores i1 and i3 lacking; 2-3 pleural ribs; and 35-38 vertebrae. A detailed description and illustrations of the skeleton of I. macunaima are also provided. Comparisons with other trichomycterids are presented, and several reductive traits of I. macunaima are discussed. Some... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Loricarioidea; Osteology; Paedomorphosis; Taxonomy; Systematics. |
Ano: 2005 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252005000400002 |
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