Copepoda name details

Checked: verified by a taxonomic editorMesocyclops venezolanus Dussart, 1987

353386  (urn:lsid:marinespecies.org:taxname:353386)

Unaccepted: synonym, or anything that is not accepted unaccepted
Species
marine, brackish, fresh, terrestrial
Dussart, B.H. (1987). Sur quelques Mesocyclops (Crustacea, Copepoda) d'Amérique du Sud. Amazoniana 10(2):149-161, figs. 1-35. (x.1987, English summary.) [details]   
Checked: verified by a taxonomic editorTaxonomy Gutierrez-Aguirrez et al 2006 considered to M....  
Checked: verified by a taxonomic editorTaxonomy Gutierrez-Aguirrez et al 2006 considered to M. venezolanus as synonym of M. brasilianus. The description was based on specimens collected in Lake Valencia, Venezuela. The differences by which M. venezolanus was separated from M. brasilianus were: caudal rami without spines on distal–lateral corner; abdominal somites with serrated hyaline fringe; dorsal seta on caudal rami shorter than outer seta; fifth thoracic somite with dispersed hair-like setae; seminal receptacle with two ‘‘bumps’’, followed by two curved horns. All these features are present in M. brasilianus too (Figures 1B, C, E, F, H, I, 2B, C, E, F), including the lack of spines on the distal–lateral corner of the caudal rami: no adult female of M. brasilianus examined here, even the specimens identified by Kiefer, showed those spines. The type specimen is useless for taxonomical analysis, and now we speculate that the spines shown in the illustrations, but not mentioned in the original description of M. brasilianus, indicate that this specimen is an immature CV female (Gutierrez-Aguirre and Suarez-Morales 2003). Another specimen collected in Managuiri, Amazonas, Brazil, and identified by Kiefer does not have these spines."Therefore, the spine presence/absence pattern that would separate M. brasilianus and M. venezolanus is not a usable character. Therefore, we conclude that both M. varius and M. venezolanus are junior synonyms of M. brasilianus . [details]
Walter, T. Chad (2015). Mesocyclops venezolanus Dussart, 1987. In: Walter, T.C. & Boxshall, G. (2017). World of Copepods database. Accessed at http://www.marinespecies.org/copepoda/aphia.php?p=taxdetails&id=353386 on 2017-12-17

Date
action
by
2008-07-15 14:41:49Z
created
2015-09-23 12:42:33Z
changed

original description Dussart, B.H. (1987). Sur quelques Mesocyclops (Crustacea, Copepoda) d'Amérique du Sud. Amazoniana 10(2):149-161, figs. 1-35. (x.1987, English summary.) [details]   

basis of record Walter, Chad. The world of Copepods. , available online at http://www.marinespecies.org/copepoda [details]   

additional source Gutiérrez-Aguirre, M.A., E. Suárez-Morales & A. Cervantes-Martínez. (2006). Distribución de las especies de Mesocyclops (Copepoda: Cyclopoida) en el sureste mexicano y región norte de Guatemala. The distribution of Mesocyclops (Copepoda: Cyclopoida) species in the Mexican southern, and Northern Guatemala regions. Hidrobiológica 16(3):259-265. [details]   

source of synonymy Gutiérrez-Aguirre, M.A., E. Suárez-Morales, A. Cervantes-Martínez, M. Elías-Gutiérrez & D. Previattelli. (2006). The neotropical species of Mesocyclops (Copepoda, Cyclopoida): an upgraded identification key and comments on selected taxa. Journal of Natural History 40(9-10):549-570. [details]  Available for editors  PDF available 
From editor or global species database
Checked: verified by a taxonomic editorTaxonomy Gutierrez-Aguirrez et al 2006 considered to M. venezolanus as synonym of M. brasilianus. The description was based on specimens collected in Lake Valencia, Venezuela. The differences by which M. venezolanus was separated from M. brasilianus were: caudal rami without spines on distal–lateral corner; abdominal somites with serrated hyaline fringe; dorsal seta on caudal rami shorter than outer seta; fifth thoracic somite with dispersed hair-like setae; seminal receptacle with two ‘‘bumps’’, followed by two curved horns. All these features are present in M. brasilianus too (Figures 1B, C, E, F, H, I, 2B, C, E, F), including the lack of spines on the distal–lateral corner of the caudal rami: no adult female of M. brasilianus examined here, even the specimens identified by Kiefer, showed those spines. The type specimen is useless for taxonomical analysis, and now we speculate that the spines shown in the illustrations, but not mentioned in the original description of M. brasilianus, indicate that this specimen is an immature CV female (Gutierrez-Aguirre and Suarez-Morales 2003). Another specimen collected in Managuiri, Amazonas, Brazil, and identified by Kiefer does not have these spines."Therefore, the spine presence/absence pattern that would separate M. brasilianus and M. venezolanus is not a usable character. Therefore, we conclude that both M. varius and M. venezolanus are junior synonyms of M. brasilianus . [details]