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Teleostei >
Scombriformes (Mackerels)
鱸形目 (Mackerels) >
Chiasmodontidae (Snaketooth fishes)
叉齒鱚科 (Snaketooth fishes)
Etymology: Pseudoscopelus: Greek, pseudes = false + Greek, skopelos = a lantern fish (Ref. 45335). Lütken did not recognize the presence of photophores on the body, confusing them with pores, but referred to a genus of lanternfish (Scopelus now Myctophum) when he named the genus (Ref. 85782).
More on author: Lütken.
環境： 環境 / 氣候帶 / 深度上下限 / 配送範圍
生態學
海洋 深海區的; 深度上下限 250 - 1370 m (Ref. 85782). 深水域; 69°N - 20°S, 39°W - 23°W (Ref. 85782)
Western Atlantic, United States to Brazil, continental shelf and Islands of the Caribbean in the west to Central Atlantic. A tentative identification of a juvenile from off Nigeria (5º56’ N, 4º03’ E) extends the species range to the Eastern Atlantic.
西大西洋: 舊的 Bahama 海峽 (參考文獻 5035), 百慕達群島，中央的墨西哥灣與外海的蘇利南.(參考文獻 13608) 也記錄自來自佛蘭芒人的無邊帽淺堆的角落上升 (參考文獻 32014) 與罕見的發生。 (參考文獻 31173) 中東大西洋: 熱帶的非洲水域.(參考文獻 2978) 中西太平洋.(參考文獻 9686)
大小 / 重量 / 年齡
成熟度: Lm ? range ? - ? cm
Max length : 15.5 cm SL 雄魚/尚未辨別雌雄; (Ref. 13608)
背棘 (總數) : 7 - 9; 背的軟條 (總數) : 19 - 22; 臀鰭軟條: 19 - 22; 脊椎骨: 35 - 36. This species can be distinguished from other members of the Pseudoscopelus scriptus species group by a single character, anal-fin photophores (saf) not extending anterior to the level of anus (vs. extending anteriorly to level of or beyond anus). It is further distinguished from the other species by a set of characteristics: mesial series of premaxillary teeth in 3-4 rows (vs. single row in P. obtusifrons and P. pierbartus); mesial series of teeth in rows of 3-4 teeth gradually increasing of size from lateral to mesial (vs. in rows of 2-3 teeth, with internal row much larger than other teeth in P. cordilluminatus); total vertebrae 35-36, precaudal 18-19 (vs. 31, 14 in P. cephalus);pigmentation in the internal part of mouth exclusive to a dusky area in the skin covering regions with teeth on premaxilla and dentary (vs. internal area of mouth and gill arches black in P. sagamianus ) (Ref. 85782).
Body shape (shape guide): elongated.
頭部與身體褐色的有深色的交叉配對條紋。 (參考文獻 31173)
A meso- to bathypelagic species found at 250-1,370 m (mean 786 m); juveniles to about 30.0 mm are known from 95 to 590 m (Ref. 85782).
生命週期和交配行為
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
西大西洋: 舊的 Bahama 海峽 (參考文獻 5035), 百慕達群島，中央的墨西哥灣與外海的蘇利南.(參考文獻 13608) 也記錄自來自佛蘭芒人的無邊帽淺堆的角落上升 (參考文獻 32014) 與罕見的發生。 (參考文獻 31173) 中東大西洋: 熱帶的非洲水域.(參考文獻 2978) 中西太平洋.(參考文獻 9686)
Melo, M.R.S., 2010. A revision of the genus Pseudoscopelus Lütken (Chiasmodontidae: Acanthomorphata) with descriptions of three new species. Zootaxa 2710:1-78. (Ref. 85782)
IUCN 瀕危狀態 (Ref. 130435: Version 2025-2 (Global))
無危 (LC) ; Date assessed: 15 July 2013
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基於模型的估計
首選溫度 (參考文獻
123201): 4.1 - 11.4, mean 9.9 °C (based on 8 cells).
系統發育多樣性指數 (參考文獻
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 (參考文獻
69278): 3.7 ±0.2 se; based on size and trophs of closest relatives
回復力 (參考文獻
120179): 中等的, 族群倍增時間最少 1.4 - 4.4年 (Assuming tmax>3).
釣魚的脆弱性 (Ref.
59153): Low vulnerability (10 of 100).
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