Bowmouth guitarfish
Rhina ancylostoma Bloch & Schneider, 1801
Also calledAngelot, Raie guitare à bouche arquée (fra) · Shinonomesakatazame (jpn) · gitar baligi (tur) · الحريري ذو الفم المقوس (ara) · シノノメサカタザメ (jpn)
First described in: Bloch, M.E.; Schneider, J.G. (1801). M.E. Blochii, Systema Ichthyologiae iconibus cx illustratum. Post obitum auctoris opus inchoatum absolvit, correxit, interpolavit Jo. <em>Gottlob Schneider, Saxo. Berolini. Sumtibus Auctoris Impressum et Bibliopolio Sanderiano Commissum.</em> Pp i-lx + 1-584, Pls. 1-110.
Descriptions from checklists and floras indexed by GBIF
distribution
South African distribution: KZN from Mzamba north to Mozambique border.
An annotated checklist of the chondrichthyans of South Africa
description
Fig. 4 oh ẚna ancylos ṫomus Bloch & Schneider, 1801: 352; lectotype: ZMB 4621, specimen lost; type locality: Coromandel Coast, south-eastern India.
Notes on batoid fishes of the Socotra Archipelago (north-western Indian Ocean) with four new records
discussion
Remarks: The collected specimen was a mature female of 225 cm TL taken by fishermen at Abd al-Kuri Island and matches well all characters of oh ẚna ancylos ṫoma given by Last e ṫ al. (2016 b). No precise collection data on locality and habitat were recorded. The specimen was examined on board a fishing boat from the United Arab Emirates. The species occurs from close inshore to depths of at least 75 m (Weigmann 2016) on the continental shelf, usually swimming close to substrata or resting on bottom in open sand areas but occasionally also seen in pelagic waters; it might be found in similar habitats in waters of the Socotra Archipelago. With 225 cm TL, the specimen is half a meter shorter than the maximum size reported for the species, 275 cm TL (Weigmann 2016). The species is included as critically endangered in IUCN Red List Assessments and urgently requires conservation management (Kyne e ṫ al. 2019 a).
Notes on batoid fishes of the Socotra Archipelago (north-western Indian Ocean) with four new records
distribution
Distribution: Known from the Red Sea to the Gulf, south to Mauritius and South Africa (KwaZulu-Natal), east to eastern Australia (New South Wales), the Philippines and southern Japan (Last e ṫ al. 2016 b). In the Arabian region, the species was recorded from the Red Sea (Debelius 1998), Gulf of Tadjoura (Lips e ṫ al. 2016; Froese & Pauly 2020), and the Gulf (Randall 1995; Almojil e ṫ al. 2015); records from off Oman (Muttrah), Iran and Pakistan are based on photographs of fresh specimens (Froese & Pauly 2020).
Notes on batoid fishes of the Socotra Archipelago (north-western Indian Ocean) with four new records
In the stacks
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Every page naming Rhina ancylostoma in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 5963013.