分類 / Names
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Tetraodontiformes (Puffers and filefishes) >
Monacanthidae (Filefishes)
Etymology: Enigmacanthus: Latin, aenigma = to speak allusively or obscurely + Greek, akantha = thorn; filamentosus: Named in reference to its filamentous second ray in the male's soft dorsal fin (Ref. 48594).
Environment: milieu / climate zone / depth range / distribution range
生態学
海 底生の; 深さの範囲 36 - 67 m (Ref. 48594). Tropical
Indo-West Pacific: Seychelles and the Marshall Islands. Probably more widespread in insular areas.
サイズ / 重さ / 年齢
Maturity: Lm ? range ? - ? cm
Max length : 3.6 cm SL オス/雌雄の選別がない; (Ref. 48594); 2.7 cm SL (female)
簡単な記述
検索表 | 形態学 | 形態計測学
背面の脊椎 (合計) : 1; 背鰭 (合計) : 27 - 28; 肛門の骨: 0; 臀鰭: 26; 脊つい: 19. Maximum known size small (3.6 cm SL); soft Doral rays 27-28; anal rays 26; pectoral rays 11/11; dorsal profile of snout straight in male, slightly concave in female, without prominent hump just before nostrils; soft dorsal and anal fins not elevated anteriorly, outer margins convex; soft dorsal fin of male with second ray elongate and filamentous; caudal fin moderately long (about equal to head length), posterior margin convex; pelvis capable of moving vertically through an arc of about 40 degrees, producing a moderately large ventral flap; lobe on rear of pelvis small, directed dorsoposteriorly; pelvic fin rudiment relatively short and small, posterior segment movably articulated with pelvis; midbody scales each with up to six minute spinules located on a transverse ridge, those on caudal peduncle of male slightly longer, recurved, forming a poorly defined patch of bristles (Ref. 48594).
Inhabits sandy bottoms, possibly in areas with scattered coral clumps (Ref. 48594).
Life cycle and mating behavior
成熟 | 繁殖 | 放精 | 卵 | 生産力 | 幼生
Hutchins, J.B., 2002. Description of a new genus and species of miniature monacanthid fish from the Seychelles and Marshall Islands. Rec. West. Aus. Mus. 21(2):213-219. (Ref. 48594)
IUCNのレッドリストの状況は (Ref. 130435: Version 2024-2)
Human uses
用具
特記事項
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インターネットの情報源
Estimates based on models
Preferred temperature (Ref.
123201): 15.3 - 28.6, mean 25.9 °C (based on 15 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01995 (0.00956 - 0.04164), b=2.93 (2.76 - 3.10), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
栄養段階 (Ref.
69278): 3.0 ±0.4 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 高い, １５か月以下の倍増期間の最小個体群 (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
