Ophichthus olivaceus, Olivaceous snake eel

Ophichthus olivaceus McCosker & Bogorodsky, 2020

Olivaceous snake eel
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分類 / Names 俗名 | 同種異名 | Catalog of Fishes(, ) | ITIS | CoL | WoRMS | Cloffa

Actinopteri > Anguilliformes (Eels and morays) 鰻鱺目 (Eels and morays) > Ophichthidae (Snake eels) 蛇鰻科 (Snake eels) > Ophichthinae
Etymology: Ophichthus: Greek, ophis = serpent + Greek, ichthys = fish (Ref. 45335);  olivaceus: Name from Latin, referring to its coloration, olivaceus.

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

; 海洋 深海底的; 深度上下限 35 - 63 m (Ref. 123091).   

分布 國家 | FAO區域 | 生態系 | 發現紀錄 | Point map | 簡介 | Faunafri

Westen Inidan Ocean, Red Sea, southern Saudi Arabia.

大小 / 重量 / 年齡

Maturity: Lm ?  range ? - ? cm
Max length : 75.6 cm TL (female)

簡短描述 型態特徵 | 形態測量圖

脊椎骨: 141 - 145. This speies is distinguished by the following characters: moderately elongate species, tail length 46.3-46.4%, head length 9.0-10.4%, and body depth at gill opening 3.6-4.2% of total length; dorsal-fin origin is above the middle of pectoral fin; pectoral fin rounded, elongate and well-developed; posterior nostril within upper lip, not visible externally; upper lip with two minute barbels, the first between anterior and posterior nostrils, the second beneath mid orbit; pores distinct, supraorbital pores 1 + 4, infraorbital pores 4 + 2, preopercular pores 5 + 3; teeth small, conical, uniserial on vomer and jaws; total vertebrae 141-145, mean vertebral formula 12-67.5-143. Colouration: dark tan with olivaceous hue dorsally and laterally, tan ventrally on tail and pale yellow ventrally on trunk; above pectoral-fin base are two pale yellow smudges; snout and lower jaw dark brown; throat pale orange-yellow, preopercle pale yellow and postorbital area pale yellow with numerous dark brown dots; dorsal fin and anal fins olivaceous; tip of tail dark red (Ref. 123091).

生物學特性     字彙 (例如 epibenthic)

Known from the holotype and paratype, trawled from a soft substratum from 35-63 m depth off The largest known specimen is 75.6 cm TL ripe female with packed ovaries, with ova ca. 1 mm in diameter (Ref. 123091).

Life cycle and mating behavior 成熟度 | 繁殖 | 產卵場 | | 孕卵數 | 仔魚


主要參考資料 Upload your references | 參考文獻 | 合作者 : McCosker, John | 合作者

McCosker, J.E., S.V. Bogorodsky, A.O. Mal and T.J. Alpermann, 2020. Description of a new snake eel Ophichthus olivaceus (Teleostei: Anguilliformes, Ophichthidae) from the Red Sea. Zootaxa 4750(1):31-48. (Ref. 123091)

IUCN 瀕危狀態 (Ref. 123251)

  未評估 

CITES (Ref. 123416)

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. 82805):  PD50 = No PD50 data   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00126 (0.00052 - 0.00302), b=2.91 (2.70 - 3.12), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
營養階層 (Ref. 69278):  4.0   ±0.7 se; based on size and trophs of closest relatives
回復力 (Ref. 120179):  中等的, 族群倍增時間最少 1.4 - 4.4年 (Preliminary K or Fecundity.).
瀕危性 (Ref. 59153):  Moderate to high vulnerability (47 of 100) .