WoRMS taxon details

Notodiaptomus kieferi Brandorff, 1973

353949  (urn:lsid:marinespecies.org:taxname:353949)

accepted
Species
marine, brackish, fresh, terrestrial
Brandorff, G.O. (1973). Neue freilebende calanoide Copepoden (Crustacea) aus dem Amazonasgebiet. [New free-living calanoid copepods (Crustacea) from the Amazon region.]. <em>Amazoniana.</em> 4(2):205-218, figs. 1-30 on pls. 1-6. (v-1973). [details] Available for editors  PDF available [request]
Taxonomic remark Brandorff introduced the species to science from organisms collected in the geographic Center of the Brazilian Amazon....  
Taxonomic remark Brandorff introduced the species to science from organisms collected in the geographic Center of the Brazilian Amazon. Since their foundation, these organisms have been recorded for other lake environments in the region and artificial environments in Pará (Santos-Silva et al., 1989; Santos-Silva, 2008), and Venezuelan river plains (Dussart, 1984a). The species was never included in nordestinus complex by Wright, and an attempt at recombination for the subgenus Notodiaptomus (Wrightius) was made in Dussart (1985) but not accepted for lack of evidence.

In 1988, Dussart & Defaye suggested the recombination of D. (s.l.) echinatus for Notodiaptomus from organisms from French Guiana and considered N. kieferi a junior synonym of this species. Santos-Silva et al. (1989) had already warned of the lack of scientific foundations of this proposal, which should be disregarded until further examinations in the type-material of the species. This seems even more prudent when considering the characteristics of occurrence for the taxa, which suggest hypothesis of taxonomic distinction when we verify that D. (s.l.) echinatus is recorded for the Southern Neotropics, specific to the regions of Paraguay (type locality) and Argentina (Lowndes, 1934).

Effectively, the examination of the type-material of N. kieferi deposited in the INPA collection was made impossible due to damage, but topotypes collected in 22.IX.59, and specified for this thesis, were accessed. Consistent and relevant differences were identified between the morphological differences examined for the topotypes and those presented by Lowndes (1934) and illustrated by Dussart & Defaye (1989): (1) female of D. echinatus has the fourth and fifth segment of the "non-confluent" metasome (Lowndes, 1934, fig. 4a), in N. kieferi this separation does not exist; (2) the female of D. echinatus, in lateral view, has a dorsal elevation covered by numerous spinules in the last segment of the metasoma (Lowndes, 1934, fig. 4a), in N. kieferi this condition also does not exist; (3) the endopod of the female fifth leg is bisegmented in D. echinatus (Lowndes, 1934, fig. 4b), in N. kieferi the endopod has a single segment; (4) (4) the fifth left leg (dorsal view) reaches only the distal portion of the base of the opposite leg in males of D. echinatus (Lowndes, 1934, fig. 4a), in male of N. kieferi the reach extends beyond the base of the leg opposite and reaches the medial portion of exopod 1; and (5) the curvature of the terminal claw of the fifth right leg of the male of D. echinatus has a more pronounced angulation than the male of N. kieferi, a difference that can also be present when comparing the tip of the terminal claw of the same leg, with externally directed curvature in the first species and without curvature in the males of the second (Lowndes, 1934, fig. 4b; and Dussart & Defaye, 1989, fig. 10).

These morphological features confirm the original description of N. kieferi. Santos-Silva et al. (1989) offered important illustrations for the species from organisms from the Rio Negro, Amazonas, in Pará, and corroborated Brandorff (1973) previously. Among the characteristics adopted by Kiefer (1936; 1956) to define Notodiapomus, the organisms of the species have not only male fifth left leg exopod 2 with "short and thick seta", but male fifth left swimming leg exopod 2 with spiniform seta surpassing the distal-point of the segment. Additionally, we record here morphological attributes for the species that are divergent from the type-species of Notodiaptomus: (1) cephalosome without dorsal suture; (2) male right antennule actual segment 8 with conical seta reaching to middle-point of the sequent segment; (3) male right antennule actual segment 13 with modified seta presenting rounded apex; (4) female right epimeral plate reaching half length of the genital segment; (5) female left epimeral plate with dorsal semicircular expansion posteriorly; (6) female genital double-somite with lateral co [details]
Walter, T.C.; Boxshall, G. (2026). World of Copepods Database. Notodiaptomus kieferi Brandorff, 1973. Accessed through: World Register of Marine Species at: https://www.marinespecies.org/aphia.php?p=taxdetails&id=353949 on 2026-03-30
Date
action
by
2008-07-15 14:41:49Z
created
2009-11-21 15:12:21Z
changed
2026-02-14 18:10:22Z
changed

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Nomenclature

original description Brandorff, G.O. (1973). Neue freilebende calanoide Copepoden (Crustacea) aus dem Amazonasgebiet. [New free-living calanoid copepods (Crustacea) from the Amazon region.]. <em>Amazoniana.</em> 4(2):205-218, figs. 1-30 on pls. 1-6. (v-1973). [details] Available for editors  PDF available [request]

new combination reference Defaye, D. & B.H. Dussart. (1989). Compléments à la faune des crustacés copépodes des eaux intérieures de Guyane française. [Supplements to the copepod crustacean fauna of the inland waters of French Guiana.]. <em>Revue d'Hydrobiologie Tropicale.</em> 21(2):109-125.(English and Spanish summaries.) [for 1988].
note: Defaye & Dussart proposed N. kieferi = N. echinatus, then Geraldes-Primeiro, L.J.O. (2023). proved that N. echinatus is a synonmyn of kieferi [details] Available for editors  PDF available [request]

Taxonomy

redescription Geraldes-Primeiro, L.J.O. (2023). Revisão sistemática de Notodiaptomus Kiefer, 1936 (Copepoda: Calanoida, Diaptomidae). [Systematic revision of Notodiaptomus Kiefer, 1936 (Copepoda: Calanoida, Diaptomidae). ]. <em>Tese de doutorado, Instituto Nacional de Pesquisas da Amazônia, Manaus, Amazonas, Brazil.</em> 669 pp., available online at https://repositorio.inpa.gov.br/handle/1/39751 [details] Available for editors  PDF available [request]

Other

additional source Dussart, B.H. (1984). Some Crustacea Copepoda from Venezuela. In: Dumont, H.J. & J.G. Tundisi (eds.). Tropical zooplankton. Hydrobiologia 113:25-67, figs. 1-31, addendum. (29-vi-1984, Spanish summary)., available online at https://doi.org/10.1007/978-94-017-3612-1_3 [details] Available for editors  PDF available [request]

additional source Hardy, E.R., B. Robertson & W. Koste. (1984). About the relationship between the zooplankton and fluctuating water levels of Lago Camaleao, a central Amazonian várzea lake. Amazoniana 9(1):43-52, figs. 1-4, tabs. 1-2. (xii-1984, Portuguese summary). [details] Available for editors  PDF available [request]

additional source Hardy, E.R., J. Adis & G.O. Brandorff. (1984). Lectotype designation for Amazonian Diaptomidae and Bosminidae (Crustacea: Copepoda, Cladocera). Acta Amazonica 14(3-4):529-531. (Portuguese abstract.), available online at https://doi.org/10.1590/1809-43921984143531 [details] Available for editors  PDF available [request]

additional source Santos-Silva, E.N. (2008). Calanoid of the families Diaptomidae, Pseudodiaptomidae, and Centropagidae from Brasil. <em>Revista de Biologia Geral e Experimental.</em> 8(1):3-67. [details] Available for editors  PDF available [request]

From editor or global species database
Taxonomic remark Brandorff introduced the species to science from organisms collected in the geographic Center of the Brazilian Amazon. Since their foundation, these organisms have been recorded for other lake environments in the region and artificial environments in Pará (Santos-Silva et al., 1989; Santos-Silva, 2008), and Venezuelan river plains (Dussart, 1984a). The species was never included in nordestinus complex by Wright, and an attempt at recombination for the subgenus Notodiaptomus (Wrightius) was made in Dussart (1985) but not accepted for lack of evidence.

In 1988, Dussart & Defaye suggested the recombination of D. (s.l.) echinatus for Notodiaptomus from organisms from French Guiana and considered N. kieferi a junior synonym of this species. Santos-Silva et al. (1989) had already warned of the lack of scientific foundations of this proposal, which should be disregarded until further examinations in the type-material of the species. This seems even more prudent when considering the characteristics of occurrence for the taxa, which suggest hypothesis of taxonomic distinction when we verify that D. (s.l.) echinatus is recorded for the Southern Neotropics, specific to the regions of Paraguay (type locality) and Argentina (Lowndes, 1934).

Effectively, the examination of the type-material of N. kieferi deposited in the INPA collection was made impossible due to damage, but topotypes collected in 22.IX.59, and specified for this thesis, were accessed. Consistent and relevant differences were identified between the morphological differences examined for the topotypes and those presented by Lowndes (1934) and illustrated by Dussart & Defaye (1989): (1) female of D. echinatus has the fourth and fifth segment of the "non-confluent" metasome (Lowndes, 1934, fig. 4a), in N. kieferi this separation does not exist; (2) the female of D. echinatus, in lateral view, has a dorsal elevation covered by numerous spinules in the last segment of the metasoma (Lowndes, 1934, fig. 4a), in N. kieferi this condition also does not exist; (3) the endopod of the female fifth leg is bisegmented in D. echinatus (Lowndes, 1934, fig. 4b), in N. kieferi the endopod has a single segment; (4) (4) the fifth left leg (dorsal view) reaches only the distal portion of the base of the opposite leg in males of D. echinatus (Lowndes, 1934, fig. 4a), in male of N. kieferi the reach extends beyond the base of the leg opposite and reaches the medial portion of exopod 1; and (5) the curvature of the terminal claw of the fifth right leg of the male of D. echinatus has a more pronounced angulation than the male of N. kieferi, a difference that can also be present when comparing the tip of the terminal claw of the same leg, with externally directed curvature in the first species and without curvature in the males of the second (Lowndes, 1934, fig. 4b; and Dussart & Defaye, 1989, fig. 10).

These morphological features confirm the original description of N. kieferi. Santos-Silva et al. (1989) offered important illustrations for the species from organisms from the Rio Negro, Amazonas, in Pará, and corroborated Brandorff (1973) previously. Among the characteristics adopted by Kiefer (1936; 1956) to define Notodiapomus, the organisms of the species have not only male fifth left leg exopod 2 with "short and thick seta", but male fifth left swimming leg exopod 2 with spiniform seta surpassing the distal-point of the segment. Additionally, we record here morphological attributes for the species that are divergent from the type-species of Notodiaptomus: (1) cephalosome without dorsal suture; (2) male right antennule actual segment 8 with conical seta reaching to middle-point of the sequent segment; (3) male right antennule actual segment 13 with modified seta presenting rounded apex; (4) female right epimeral plate reaching half length of the genital segment; (5) female left epimeral plate with dorsal semicircular expansion posteriorly; (6) female genital double-somite with lateral co [details]