分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei >
Siluriformes (Catfishes)
鯰形目 (Catfishes) >
Akysidae (Stream catfishes)
河鯰科 (Stream catfishes) > Akysinae
Etymology: Akysis: Derived from Greek, a = without + Greek, kysthos = bladder (Ref. 45335); pulvinatus: From the Latin pulvinus, an elevation, in reference to the long-based adipose fin of this species..
Environment: milieu / climate zone / depth range / distribution range
生態學
; 淡水 居於水底的; pH range: 8.0 - ?. 熱帶; 29°C - ?
Asia: upper Tapi River drainage and hillstreams flowing into the Andaman Sea on the western half of the Isthmus of Kra in Thailand.
亞洲: 在泰國流入在西方人上的安達曼海一半的 Kra 的峽部的上面的塔披河流域與丘陵的溪流。
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 3.0 cm SL 雄魚/尚未辨別雌雄; (Ref. 59363)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
背棘 (總數) : 1; 背的軟條 (總數) : 5; 臀鰭軟條: 9 - 10; 脊椎骨: 31. Differs from congeners (except for Akysis brachybarbatus, Akysis fuliginatus, Akysis longifilis, Akysis pictus, Akysis prashadi and Akysis vespa by the absence of serrations on the posterior edge of the pectoral spine. Can be differentiated from Akysis brachybarbatus in having deeper caudal peduncle (9.4-10.% SL vs. 7.9-8.1), narrower head (21.9-25.1% SL vs. 25.5-28.0) and the presence (vs. absence) of a yellow snout; and fromAkysis fuliginatus in having a longer adipose-fin base (23.0-25.2% SL vs. 15.1-19.5), a gently forked (vs. truncate) caudal fin, and presence (vs. absence) of light-colored markings on the head and body, and from Akysis longifilis in possessing a deeper body (13.2-16.0% SL vs. 9.7-13.6) and caudal peduncle (9.4-10.3% SL 5.6-7.2), shorter nasal and maxillary barbels (reaching posterior margin of orbit vs. dorsalmost limit of gill opening, 13.9-57.5% HL vs. 67.4-96.4, and reaching middle of pectoral-fin base vs. vertical through middle of dorsal-fin base, 78.5-105.0% HL vs. 123.2-159.6 respectively). Distinguished from Akysis pictus and Akysis prashadi in having a longer head (27.6-29.8% SL vs. 20.9-25.1) and the presence (vs. absence) of a yellow snout. Differs further from Akysis pictus in having more rounded pale colored patches on the body (vs. with elongate pale patches that typically extend throughout the dorsal surface of the entire postdorsal distance. Can be diagnosed from Akysis vespa in having a longer adipose-fin base (23.0-25.2% SL vs. 16.2-21.6), deeper caudal peduncle (9.4-10.3% SL vs. 7.6-9.1) and caudal fin with lower lobe longer than upper (vs. both lobes approximately equal). Differs from Akysis varius in having a gently forked (vs. truncate) caudal fin (Ref. 59363).
有別於同類 (除了 Akysis brachybarbatus ， Akysis fuliginatus, Akysis longifilis, Akysis pictus, Akysis prashadi 與 Akysis vespa 在胸棘的後緣上的藉由缺少鋸齒。 能從 Akysis brachybarbatus 被區別有較深的尾柄 (9.4-10.% SL vs.7.9-8.1), 較狹窄的頭部 (21.9-25.1% SL vs.25.5-28.0) 與黃色吻的出現 (vs. 缺乏); 而且從Akysis fuliginatus 在有一個方面較長的脂鰭基底 (23.0-25.2% SL vs.15.1-19.5), 一逐漸地在頭部與身體上分岔了 尾鰭 , 與顏色較淡斑紋的出現 (vs. 缺乏)", 與從 在持有一個較深的身體 (13.2-16.0% SL vs.9.7-13.6) 與尾柄 (9.4-10.3% SL 5.6-7.2), 較短的鼻骨與顎的觸鬚方面的 Akysis longifilis.(達到鰓裂的眼窩和最上面限制比較的後緣, 13.9-57.5% HL vs.67.4-96.4, 而且達到胸鰭基底的中央 vs. 垂直的經過背鰭基底的中央, 78.5-105.0% HL vs.123.2-159.6 分別地) 在有一個方面與 Akysis pictus 與 Akysis prashadi 區分了較長的頭部 (27.6-29.8% SL vs.20.9-25.1) 與黃色吻的出現 (vs. 缺乏) 。 進一步不同於 Akysis pictus 在身體上有更圓形的灰白彩區塊 (vs. 有細長的在整個後背的距離的背部表面各處典型地延伸的灰白的區塊。 能被在有一個方面從 Akysis vespa 鑑定較長的脂鰭基底 (23.0-25.2% SL vs.16.2-21.6), 較深的尾柄 (9.4-10.3% SL vs.7.6-9.1) 而且尾鰭有下葉比上葉長.(vs. 雙葉大約等於) 在有一個方面有別於 Akysis varius 逐漸分叉的 (vs. 截形) 尾鰭。 (參考文獻 59363)
The type locality of this species is a stream characterized by both slow-flowing and riffle areas, clear water and substrate consisted of gravel and larger rocks. This catfish occurs between the rocks, particularly in the riffle areas.
這種的模式標本產地是特徵為有的一個水流緩慢流動的與急流區域, 清澈的水域與底部礫石與較大的岩石組成.。 這一個鯰魚在岩石之間出現, 特別地在急流區域中。
Life cycle and mating behavior
Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚
亞洲: 在泰國流入在西方人上的安達曼海一半的 Kra 的峽部的上面的塔披河流域與丘陵的溪流。
Ng, H.H., 2007. Akysis pulvinatus, a new species of catfish (Siluriformes: Akysidae) from southern Thailand. Zootaxa 1608:51-58. (Ref. 59363)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.3 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
