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Issue: Vol. 4590 No. 1: 24 Apr. 2019
Type: Article
Published: 2019-04-24
DOI: 10.11646/zootaxa.4590.1.8
Page range: 177–183
Abstract views: 67
PDF downloaded: 1

Description of a second species of Gymnoxenisthmus from the Red Sea (Teleostei: Gobioidei: Xenisthmidae)

Macleay Museum and School of Biological Sciences, A12 – Macleay Building, The University of Sydney, New South Wales 2006, Australia Ichthyology, Australian Museum, 6 College Street, Sydney, New South Wales 2010, Australia
Senckenberg Research Institute and Natural History Museum Frankfurt, Senckenberganlage 25, 60325 Frankfurt a.M., Germany Station of Naturalists, Omsk, Russia
Marine Biology Department, Faculty of Marine Sciences, King Abdulaziz University, Jeddah, KSA
Indo-Pacific ichthyology systematics taxonomy morphology Gymnoxenisthmus flavicinctus Pisces

Abstract

Gymnoxenisthmus flavicinctus n. sp. is described from the 20.2 mm SL holotype collected from Sharm Obhur, Jeddah, Saudi Arabia, central Red Sea. It differs from the holotype and only known specimen of its congener G. tigrellus in having entirely unbranched pectoral-fin rays (versus only upper two rays and lowermost ray unbranched), 17 (versus 15) pectoral-fin rays and 13 (versus 12) segmented anal-fin rays. It also differs in live and preserved coloration. The new species brings the total number of xenisthmids known from the Red Sea to five.

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