Rhynchoconger randalli
Rhynchoconger randalli Acharya, Mohanty, Ray, Mishra & Mohapatra, 2022
First described in: Acharya, Smrutirekha, Mohanty, Swarup Ranjan, Ray, Dipanjan, Mishra, Subhrendu Sekhar, Mohapatra, Anil (2022): A new congrid eel, Rhynchoconger randalli sp. nov. (Congridae: Anguilliformes) with a pentagonal pattern of vomer dentition from the Bay of Bengal, Indian waters. Zootaxa 5174 (2): 188-194, DOI: https://doi.org/10.11646/zootaxa.5174.2.5
Descriptions from checklists and floras indexed by GBIF
description
(Figures 1 – 4, Table 1) Holotype. EBRC / ZSI / F 13832 (596 + mm TL), Paradeep fish landing centre, Odisha, India, depth of capture: 36 – 40 m, date of collection: 3 Nov. 2021 Paratype. EBRC / ZSI / F 13833, 1 (599 + mm TL), Paradeep fish landing centre, Odisha, India, depth of capture: 36 – 40 m, date of collection: 3 Nov. 2021
A new congrid eel, Rhynchoconger randalli sp. nov. (Congridae: Anguilliformes) with a pentagonal pattern of vomer dentition from the Bay of Bengal, Indian waters
description
Description. A long conger eel of the genus Rhynchoconger with reduced tail tip. Body compressed gradually towards tail (Fig. 1). Dorsal-fin origin slightly anterior to level of gill opening. Posterior margin of eye just before rictus. Width and depth of body at gill opening comparatively larger than those at anus. Head comparatively shorter than trunk (92.63 – 93.68 % of trunk length). Preanal length (PAL) 3.25 times in TL. Eye diameter 7.73 – 8 in head length (HL). Snout length 4.63 ‒ 4.68 in HL. Elongated pectoral fin (13.66 ‒ 13.59 % PAL; Table 1). Anterior nostril tubular on ventrolateral side of snout tip, posterior nostril oval in front of mid-eye. Upper jaw clearly extends beyond tip of lower jaw. Upper jaw with unique pentagon-shaped vomerine tooth patch with pointed posterior end. Ethmovomerine teeth remain uncovered when mouth closed. Ethmovomerine tooth patch broader than long, with 60 – 64 blunt and granular to conical teeth arranged in 7 – 8 irregular rows, vomerine tooth patch is longer than broad, with 38 – 52 teeth arranged in 8 – 9 rows. Vomer, ethmovomerine, and maxilla clearly separated by narrow space from each other. Jaw and vomerine teeth comparatively smalle
A new congrid eel, Rhynchoconger randalli sp. nov. (Congridae: Anguilliformes) with a pentagonal pattern of vomer dentition from the Bay of Bengal, Indian waters
diagnosis
Diagnosis. A species of the genus Rhynchoconger clearly distinguished from other congeners in having the following combination of characters: distinct pentagonal vomerine tooth patch (Figs. 3 – 4); posterior tip of vomer clearly ends with single tooth before anterior level of eye; vomerine tooth patch with 48 – 52 teeth in 8 – 9 rows; ethmovomerine tooth patch with 60 – 64 teeth in 7 – 8 rows; posterior margin of eye just before rictus; dorsal-fin origin slightly anterior to level of gill opening; predorsal vertebrae 7 – 8; preanal vertebrae 29 – 31; dorsal-fin rays before vent 44 – 47; peritoneum and stomach colour pale.
A new congrid eel, Rhynchoconger randalli sp. nov. (Congridae: Anguilliformes) with a pentagonal pattern of vomer dentition from the Bay of Bengal, Indian waters
distribution
Distribution. Collected from the northern part of the Bay of Bengal, Paradeep, Odisha, India.
A new congrid eel, Rhynchoconger randalli sp. nov. (Congridae: Anguilliformes) with a pentagonal pattern of vomer dentition from the Bay of Bengal, Indian waters
Where it has been recorded
Recorded sightings
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geo-referenced records in GBIF, from museums, herbaria and field observers.
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In the stacks
Searching the stacks…
Every page naming Rhynchoconger randalli in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 11888387.