Four new species of Rivulus Poey, 1860, subgenus Cynodonichthys Meek, 1904 (Teleostei: Cyprinodontiformes: Rivulidae) from the Magdalena River Basin, Central Colombia, including notes on Rivulus (Cynodonichthys) elegans Steindachner, 1880

Vermeulen, Frans

Today, 19 April 2023, Killi-Data celebrate the first discovery of Rivulus villwocki | Simpsonichthys brousseaui, respectively by Vollrad Etzel, H. Birkhahn and K. Wassmann, and , by Roger D. Brousseau, in 1992 and in 2008
767- Pappalardo et al. exemplify differences of NDI, CytB, COI genes for 6 pops of Aphanius fasciatus, 3 Italian, 2 Albanian, 1 Greek [28-March-2024] : Biol.
766- Domínguez et al. first disclose moleculars of Millerichthys robustus, not related to neotropical annuals but to Rivulus from Cuba [25-March-2024] : BJLS
765- Mandeng et al. present species diversity and distribution patterns of African rivulines in rainforest streams of Cameroun (Aphyos.) [25-March-2024] : A.Z.
764- Zak+Suhajova show that in clear or turbid water, female of Nothobranchius furzeri consumes 3 times more food than male (vs. weight) [15-March-2024] : E.F.
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KILLI - DATA SERIES, 2013, Vermeulen, Rivulus, Cynodonichthys, azurescens, pivijay, ribesrubrum, xi

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Killi-Data Series 2013 [as a print, ISBN 978-2-9547546-0-4, as a PDF document, ISBN 978-2-9547546-1-1]

Killi-Data Series 2013, 42-63, 10 figs., 5 tabs.

Four new species of Rivulus Poey, 1860, subgenus Cynodonichthys Meek, 1904 (Teleostei: Cyprinodontiformes: Rivulidae) from the Magdalena River Basin, Central Colombia, including notes on Rivulus (Cynodonichthys) elegans Steindachner, 1880.

Vermeulen, F.B.M.

Abstract: Four new rivulid species are described: Rivulus (Cynodonichthys) azurescens, Rivulus (Cynodonichthys) pivijay, Rivulus (Cynodonichthys) ribesrubrum, and Rivulus (Cynodonichthys) xi. Rivulus azurescens and R. ribesrubrum belong to the R. elegans species-group. Rivulus pivijay and R. xi are closely related to the R. elegans species-group, but differ by: 1) a unique reticulate brown color pattern on the body (versus a pattern of red longitudinal stripes); 2) males with the caudal-fin without a yellow/orange posterior border (versus males with a yellow/orange posterior border); and 3) the presence of an ocellus (faint or weak in adult males) on the caudal peduncle in both sexes (versus absence of an ocellus in both sexes, except in females of R. magdalenae and R. boehlkei. Huber & Fels 1985. Some notes concerning R. (Cynodonichthys) elegans Steindachner, 1880 are included for comparison.

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Surprisingly, the most frequently used root (with more than 3 letters) for Killifish names is mann which means Man in German. Is it for 9, 11, 15, or 19 taxa?	QUIZ28

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Today, 19 April 2023, Killi-Data celebrate the first discovery of Rivulus villwocki | Simpsonichthys brousseaui, respectively by Vollrad Etzel, H. Birkhahn and K. Wassmann, and , by Roger D. Brousseau, in 1992 and in 2008

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KILLI - DATA SERIES, 2013, Vermeulen, Rivulus, Cynodonichthys, azurescens, pivijay, ribesrubrum, xi