Rainbowfishes (Melanotaenia: Melanotaeniidae) of the Aru Islands, Indonesia with descriptions of five new species and redescription of M. patoti Weber and M. senckenbergianus Weber

Gerald Allen, Renny Hadiaty, Peter UNMACK, Mark Erdmann

    Research output: Contribution to journalArticle

    Abstract

    The Aru Archipelago is a relict of the former land bridge connecting Australia and New Guinea and its freshwaterMelanotaenia strongly reflect this past connection. Sea level changes over the past 2-3 million years have apparently provided sufficient isolation for the radiation of a minispecies flock consisting of at least seven species.Melanotaenia patoti and M. senckenbergianus were described from the islands by Weber in the early 1900s, but subsequently considered as junior synonyms of the New Guinea mainland species M. rubrostriata and M. goldieirespectively. Recent collections by the authors facilitated a reassessment of their status based on morphological and genetic investigations, consequently both are here recognised as valid and redescriptions are provided. In addition, the current study reveals the existence of five new taxa described herein. M. albimarginata n. sp. is described from 36 specimens, 35.3-90.9 mm SL, collected at Kobroor Island. It is allied to the “Australis” group of species of Australia and southern New Guinea. It differs from its closest Aru relatives, M. patoti and M. aruensis, on the basis of colour pattern, caudal peduncle depth, lateral scale counts and average number of cheek scales.Melanotaenia aruensis n. sp. is described from 19 specimens, 38.5-76.4 mm SL from Trangan and Kobroor islands. It is superficially similar to M. albimarginata and M. patoti, but exhibits marked genetic separation, unique colour pattern features, and several slight morphological differences. Melanotaenia kolaensis, M. picta, and M. wokamensisn. spp. are described from 95 (17.9-78.8 mm SL), 51 (17.2-93.2 mm SL), and 156 (14.1-75.6 mm SL) specimens respectively, collected at Kola, Kobroor, and Wokam islands. They comprise a close-knit group allied to the “Goldiei” group (along with M. senckenbergianus), but are differentiated on the basis of live colour patterns and various genetic, morphometric, and meristic features.
    Original languageEnglish
    Pages (from-to)66-108
    Number of pages43
    JournalAQUA - International Journal of Ichthyology
    Volume21
    Issue number2
    Publication statusPublished - 2015

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    redescriptions
    Indonesia
    New Guinea
    new species
    color
    peduncle
    new taxa
    sea level
    flocks
    Melanotaenia
    Melanotaeniidae

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    title = "Rainbowfishes (Melanotaenia: Melanotaeniidae) of the Aru Islands, Indonesia with descriptions of five new species and redescription of M. patoti Weber and M. senckenbergianus Weber",
    abstract = "The Aru Archipelago is a relict of the former land bridge connecting Australia and New Guinea and its freshwaterMelanotaenia strongly reflect this past connection. Sea level changes over the past 2-3 million years have apparently provided sufficient isolation for the radiation of a minispecies flock consisting of at least seven species.Melanotaenia patoti and M. senckenbergianus were described from the islands by Weber in the early 1900s, but subsequently considered as junior synonyms of the New Guinea mainland species M. rubrostriata and M. goldieirespectively. Recent collections by the authors facilitated a reassessment of their status based on morphological and genetic investigations, consequently both are here recognised as valid and redescriptions are provided. In addition, the current study reveals the existence of five new taxa described herein. M. albimarginata n. sp. is described from 36 specimens, 35.3-90.9 mm SL, collected at Kobroor Island. It is allied to the “Australis” group of species of Australia and southern New Guinea. It differs from its closest Aru relatives, M. patoti and M. aruensis, on the basis of colour pattern, caudal peduncle depth, lateral scale counts and average number of cheek scales.Melanotaenia aruensis n. sp. is described from 19 specimens, 38.5-76.4 mm SL from Trangan and Kobroor islands. It is superficially similar to M. albimarginata and M. patoti, but exhibits marked genetic separation, unique colour pattern features, and several slight morphological differences. Melanotaenia kolaensis, M. picta, and M. wokamensisn. spp. are described from 95 (17.9-78.8 mm SL), 51 (17.2-93.2 mm SL), and 156 (14.1-75.6 mm SL) specimens respectively, collected at Kola, Kobroor, and Wokam islands. They comprise a close-knit group allied to the “Goldiei” group (along with M. senckenbergianus), but are differentiated on the basis of live colour patterns and various genetic, morphometric, and meristic features.",
    author = "Gerald Allen and Renny Hadiaty and Peter UNMACK and Mark Erdmann",
    year = "2015",
    language = "English",
    volume = "21",
    pages = "66--108",
    journal = "AQUA - International Journal of Ichthyology",
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    TY - JOUR

    T1 - Rainbowfishes (Melanotaenia: Melanotaeniidae) of the Aru Islands, Indonesia with descriptions of five new species and redescription of M. patoti Weber and M. senckenbergianus Weber

    AU - Allen, Gerald

    AU - Hadiaty, Renny

    AU - UNMACK, Peter

    AU - Erdmann, Mark

    PY - 2015

    Y1 - 2015

    N2 - The Aru Archipelago is a relict of the former land bridge connecting Australia and New Guinea and its freshwaterMelanotaenia strongly reflect this past connection. Sea level changes over the past 2-3 million years have apparently provided sufficient isolation for the radiation of a minispecies flock consisting of at least seven species.Melanotaenia patoti and M. senckenbergianus were described from the islands by Weber in the early 1900s, but subsequently considered as junior synonyms of the New Guinea mainland species M. rubrostriata and M. goldieirespectively. Recent collections by the authors facilitated a reassessment of their status based on morphological and genetic investigations, consequently both are here recognised as valid and redescriptions are provided. In addition, the current study reveals the existence of five new taxa described herein. M. albimarginata n. sp. is described from 36 specimens, 35.3-90.9 mm SL, collected at Kobroor Island. It is allied to the “Australis” group of species of Australia and southern New Guinea. It differs from its closest Aru relatives, M. patoti and M. aruensis, on the basis of colour pattern, caudal peduncle depth, lateral scale counts and average number of cheek scales.Melanotaenia aruensis n. sp. is described from 19 specimens, 38.5-76.4 mm SL from Trangan and Kobroor islands. It is superficially similar to M. albimarginata and M. patoti, but exhibits marked genetic separation, unique colour pattern features, and several slight morphological differences. Melanotaenia kolaensis, M. picta, and M. wokamensisn. spp. are described from 95 (17.9-78.8 mm SL), 51 (17.2-93.2 mm SL), and 156 (14.1-75.6 mm SL) specimens respectively, collected at Kola, Kobroor, and Wokam islands. They comprise a close-knit group allied to the “Goldiei” group (along with M. senckenbergianus), but are differentiated on the basis of live colour patterns and various genetic, morphometric, and meristic features.

    AB - The Aru Archipelago is a relict of the former land bridge connecting Australia and New Guinea and its freshwaterMelanotaenia strongly reflect this past connection. Sea level changes over the past 2-3 million years have apparently provided sufficient isolation for the radiation of a minispecies flock consisting of at least seven species.Melanotaenia patoti and M. senckenbergianus were described from the islands by Weber in the early 1900s, but subsequently considered as junior synonyms of the New Guinea mainland species M. rubrostriata and M. goldieirespectively. Recent collections by the authors facilitated a reassessment of their status based on morphological and genetic investigations, consequently both are here recognised as valid and redescriptions are provided. In addition, the current study reveals the existence of five new taxa described herein. M. albimarginata n. sp. is described from 36 specimens, 35.3-90.9 mm SL, collected at Kobroor Island. It is allied to the “Australis” group of species of Australia and southern New Guinea. It differs from its closest Aru relatives, M. patoti and M. aruensis, on the basis of colour pattern, caudal peduncle depth, lateral scale counts and average number of cheek scales.Melanotaenia aruensis n. sp. is described from 19 specimens, 38.5-76.4 mm SL from Trangan and Kobroor islands. It is superficially similar to M. albimarginata and M. patoti, but exhibits marked genetic separation, unique colour pattern features, and several slight morphological differences. Melanotaenia kolaensis, M. picta, and M. wokamensisn. spp. are described from 95 (17.9-78.8 mm SL), 51 (17.2-93.2 mm SL), and 156 (14.1-75.6 mm SL) specimens respectively, collected at Kola, Kobroor, and Wokam islands. They comprise a close-knit group allied to the “Goldiei” group (along with M. senckenbergianus), but are differentiated on the basis of live colour patterns and various genetic, morphometric, and meristic features.

    M3 - Article

    VL - 21

    SP - 66

    EP - 108

    JO - AQUA - International Journal of Ichthyology

    JF - AQUA - International Journal of Ichthyology

    SN - 0945-9871

    IS - 2

    ER -