分類 / Names
俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Elasmobranchii
板鰓亞綱 (鯊魚與魟魚) (sharks and rays) >
Myliobatiformes (Stingrays)
鰩目 (Stingrays) >
Urolophidae (Round rays)
平魟科 (Round rays)
Etymology: Spinilophus: Name from Latin spina for spine or thorn and genus Urolophus; referring to the sqamation of the dorsal surface ot this stingaree.
Environment: milieu / climate zone / depth range / distribution range
生態學
海洋 居於水底的. 熱帶
Western Central Pacific: known only from New Ireland (Bismarck Archipelago). Possibly New Guinea (Ref. 9863).
中西太平洋: 已知只來自新愛爾蘭 (俾斯麥列島)了。 可能地新幾內亞.(參考文獻 9863)
大小 / 重量 / 年齡
Maturity: Lm ? range ? - ? cm
Max length : 17.4 cm TL 雄魚/尚未辨別雌雄; (Ref. 51067)
簡短描述
檢索表 | 型態特徵 | 形態測量圖
This species is distinguished by the following characters: dorsal disc with a prominent mid-scapular thorn and dermal denticles which are small, spinular, partly embedded and are restricted to the snout, supraorbital, interorbital and mid-lumbar regions and midline of the tail; nasal capsules are oval, relatively broad and short; the ischiopubic bar of pelvic girdle is strongly arched with concave outer anterior margin, short angular prepelvic process and long posterior mesial process (Ref. 113541).
接近圓形的體盤; 非常長的尾部, postcoacal 長度超過 90% 的體盤長度; 非常小的眼, 大約 16% 的吻與 8% 的頭長; 寬又軟骨的眼窩超過 5% 全長; 鼻間蓋矩形的; 沒有在後側的邊緣上的寬的葉; 噴水孔的內緣斜角; 小的刺與小刺在背面上; 側面的尾部摺疊不發達的; 沒有背鰭; 腹鰭非常短與寬的, 頂點略微有角的; 尾鰭非常低的與延長, 上尾葉長度超過 9 倍鰭高; 89個胸鰭動脈.(參考文獻 51067)
Maximum length known only from the holotype and only known specimen, a juvenile male (Ref. 51067).
最大的長度只有正模式標本與唯一的已知標本, 一個幼年的雄魚.(參考文獻 51067)
Life cycle and mating behavior
成熟度 | 繁殖 | 產卵場 | 卵 | 孕卵數 | 仔魚
中西太平洋: 已知只來自新愛爾蘭 (俾斯麥列島)了。 可能地新幾內亞.(參考文獻 9863)
Séret, B. and P. Last, 2003. Description of four new stingarees of the genus Urolophus (Batoidea: Urolophidae) from the Coral Sea, South-West Pacific. Cybium 27(4):307-320. (Ref. 51067)
IUCN 瀕危狀態 (Ref. 130435: Version 2024-1)
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00813 (0.00372 - 0.01775), b=3.08 (2.88 - 3.28), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
營養階層 (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
回復力 (Ref.
120179): 低的, 最小族群倍增時間4.5 - 14 年 (Assuming fecundity<100).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
