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Read, H. J.; Enghoff, H. (2018). Siphonophoridae from Brazilian Amazonia Part 1 – The genus Columbianum Verhoeff, 1941 (Diplopoda, Siphonophorida). European Journal of Taxonomy. 477: 1-23.
413282
10.5852/ejt.2018.477 [view]
Read, H. J.; Enghoff, H.
2018
Siphonophoridae from Brazilian Amazonia Part 1 – The genus Columbianum Verhoeff, 1941 (Diplopoda, Siphonophorida)
European Journal of Taxonomy
477: 1-23
Publication
A large sample of Siphonophoridae from Brazil was studied; two morphological groups could be distinguished. Here species considered to be from the genus Columbianum Verhoeff, 1941 are examined in detail. The genus is known from Central and South America (guatemala, Panama, Honduras, guiana, Colombia, Peru and Brazil) and is characterised by a clear demarcation between head and rostrum in combination with long antennae, clearly surpassing the tip of the rostrum. A list of previously described species considered to belong to the genus is given; three new species are described: C. major sp. nov. has a large body size and a small head, C. nahvalr sp. nov. has a particularly pronounced domed head and a more castellated appearance to the body, C. adisi sp. nov. has a small body size and a very characteristic hind margin to the pleurites. Variation in the state of preservation of specimens hinders a diagnosis, but the examination of the accessory claw and details of the metazonital limbus and pleurite edges are helpful. Unusually for Diplopoda, the male gonopods are not very useful for identification. Ecological comments are given for each new species, one of which, C. adisi sp. nov., is from the seasonally flooded forest and appears to avoid inundation by climbing trees.
America, South
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2021-09-20 09:13:45Z
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Columbianum Verhoeff, 1941 (additional source)
Columbianum adisi Read & Enghoff, 2018 (original description)
Columbianum andecola (Kraus, 1954) (additional source)
Columbianum aviceps (Loomis, 1961) (new combination reference)
Columbianum corynetes (Chamberlin, 1923) (new combination reference)
Columbianum fallens (Chamberlin, 1922) (new combination reference)
Columbianum gracilicorne (Carl, 1914) (additional source)
Columbianum major Read & Enghoff, 2018 (original description)
Columbianum meinerti (Silvestri, 1898) (new combination reference)
Columbianum monzonica (Kraus, 1960) (new combination reference)
Columbianum nahvalr Read & Enghoff, 2018 (original description)
Columbianum pearsei (Chamberlin, 1923) (additional source)
Columbianum porcullae (Kraus, 1954) (additional source)
Columbianum progressor (Chamberlin, 1922) (new combination reference)
Columbianum relicta (Chamberlin, 1923) (new combination reference)
Columbianum telana (Chamberlin, 1922) (new combination reference)
Siphonophora lafloridae Kraus, 1955 (additional source)
Siphonophora platops Loomis, 1941 (additional source)
Siphonophora pseustes Chamberlin, 1923 accepted as Siphonacme pseustes (Chamberlin, 1923) (additional source)
Holotype INPA, identified as Columbianum major Read & Enghoff, 2018
Holotype INPA, identified as Columbianum nahvalr Read & Enghoff, 2018
Holotype INPA, identified as Columbianum adisi Read & Enghoff, 2018
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