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Psilorhynchus tysoni Conway & Pinion, 2016

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drawing shows typical species in Psilorhynchidae.

分類 / Names 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa

Teleostei > Cypriniformes (Carps) 鯉形目 (Carps) > Psilorhynchidae (Mountain carps) 裸吻魚科 (Mountain carps)
Etymology: Psilorhynchus: Greek, psilos = hairless + Greek, rhyngchos = snout (Ref. 45335);  tysoni: Named for Tyson R. Roberts who collected the majority of the specimens in the type series and made them available for study; a noun in genitive (Ref. 110241).

Environment: milieu / climate zone / depth range / distribution range 生態學

; 淡水 底中水層性.

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Asia: known currently only from a few localities on the Mae Nam Moei and its tributary the Hue Mae Song, Tak Province, Thailand (Ref. 110241).

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 5.4 cm SL 雄魚/尚未辨別雌雄; (Ref. 110241)

簡短描述 檢索表 | 型態特徵 | 形態測量圖

背的軟條 (總數) : 12; 臀鰭軟條: 8; 脊椎骨: 34. Diagnosis: 6–7 dorsal saddles along dorsal midline, including 1-2 between occiput and dorsal-fin origin and 5-6 from dorsal-fin origin to caudal-fin origin; posteriormost dorsal saddle at caudal-fin origin small but prominent and represented by black or dark brown spot; L+1 and L-1 rows restricted to center of body side, not extending posterior to vertical through anal-fin origin; L+2 row absent; dorsal-fin with poorly developed dark brown or black markings along anterior margin; 2 widely separate dark brown or black markings on both upper and lower caudal fin lobes; anguloarticular portion of preoperculo-mandibular canal present; principal caudal-fin rays 10+9; total vertebrae 34 (17+17); body shallow (14–18% SL); caudal peduncle short (11–14% SL); snout short (35–43% HL); mouth narrow (mouth width 21-26% HL) (Ref. 110241).

生物學特性     字彙 (例如 epibenthic)

Collected in swift flowing water of shallow to moderate (50-100 cm) depth over a substrate of sand and gravel; water parameters measured at this locality at time of collection include: 21C, pH 7.5, KH 3, GH 0 (Ref. 110241).

Life cycle and mating behavior Maturities | 繁殖 | Spawnings | Egg(s) | Fecundities | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 | 合作者

Conway, K.W. and A.K. Pinion, 2016. Psilorhynchus tysoni, a new species of torrent minnow from the Salween River drainage, western Thailand (Teleostei: Psilorhynchidae). Zootaxa 4136(3):580-592. (Ref. 110241)

IUCN 瀕危狀態 (Ref. 130435)

  未評估 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

對人類具威脅

 





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Estimates based on models

Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00179 - 0.00969), b=3.17 (2.96 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  3.0   ±0.2 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref. 59153):  Low vulnerability (10 of 100).