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Dwarf lefteye flounder
Arnoglossus tenuis Günther, 1880
Also calledナガダルマガレイ (jpn) · 半邊魚 (zho) · 扁魚 (zho) · 比目魚 (zho) · 皇帝魚 (zho) · 細羊舌鮃 (zho)
First described in: Günther, A. (1880). Report on the shore fishes procured during the voyage of H. M. S. Challenger in the years 1873-1876. In: Report on the scientific results of the voyage of H. M. S. Challenger during the years 1873-76. <em>Zoology.</em> v. 1 (pt 6): 1-82, Pls. 1-32.
Descriptions from checklists and floras indexed by GBIF
description
Specimens examined. NMMB-P 23199 (9, 57.3 – 62.8), Ke-tzu-liao, 3 Apr. 2016; NMMB-P 25682 (3, 59.9 – 65.4), Ke-tzu-liao, 27 Jun. 2016; NMMB-P 25684 (8, 55.2 – 64.5), Dong-gang, 11 Oct. 2016. More specimens deposited in NMMB-P collection. Diagnostic features. D 89 – 96; A 68 – 78; P 10 – 12; C 2 + 13 + 2 = 17; LLs 51 – 58; GR 0 + 5 – 8 = 5 – 8; vert. 10 + 28 – 30 = 38 – 40. Body elongated, greatest depth slightly anterior of middle part of body (38.4 – 48.0 % SL). Head small, its length about half of body depth (22.3 – 24.3 % SL); front of head with distinct concavity in front of upper eye; head profile gentle, same in both sexes. Snout shorter than eye diameter. Rostral spine absent on tip of snout in both sexes. Eye diameter slightly shorter than upper jaw. No orbital spines in both sexes. Interorbital ridge low, extending from anterior margin of lower eye to posterior margin of upper eye. Mouth very small, upper-jaw length on ocular side 7.3 – 8.3 % SL; maxilla extending to or slightly behind anterior margin of lower eye. Teeth on both jaws uniserial, closely set, not enlarged anteriorly; lower jaw teeth on ocular side curved inward, teeth on blind side slightly longer and strong
The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan
discussion
Remarks. This species resembles A. aspilos in having small a mouth and fewer scales on the lateral line. It differs from the latter in having slightly more dorsal- and anal-fin rays and more lateral-line scales. Shen (1983) pointed out that the specimen identified as A. aspilos by Chen & Weng (1965) is a misidentification (see above). Moreover, A. tenuis resembles A. macrolophus in body shape, small mouth, fewer dorsal- and anal-fin rays, but can be distinguished by lacking elongate anterior dorsal-fin rays and no black spots on the posterior portions of the dorsal- and anal-fin bases.
The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan
distribution
Distribution. Northeastern and southwestern Taiwan; Indian and Western Pacific oceans (Amaoka, 2016).
The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan
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 Arnoglossus tenuis in the Biodiversity Heritage Library →
From the GBIF Backbone Taxonomy and occurrence records (GBIF.org), with Wikipedia and the Source Library. GBIF species 2408515.