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No image available for this species; drawing shows typical species in Macrouridae.
分類 / 名稱 俗名 | 同種異名 | Catalog of Fishes(屬, 種) | ITIS | CoL | WoRMS | Cloffa
Teleostei > Gadiformes (Cods) 鱈形目 (Cods) > Macrouridae (Grenadiers or rattails) 鼠尾鱈科 (Grenadiers or rattails)
Etymology: Coelorinchus:Greek, koilos = a hollow + Greek, rhyngchos = jaw (Ref. 45335); posteromaculatus:Name from Latin 'posteromaculatus' for adjectives 'posterior' meaning further back or hinder and 'maculatus' meaning spotted; referring to the species’ characteristic dark blotch on the anterior part of the tail.
This species is distinguished by the following characters: small, intense, longitudinally elongate, lateral, dark blotch on the anterior part of tail; light organ tubular and externally represented by long black streak covered with scales, extending from immediately in front of anus to chest just posterior to isthmus; underside of head is completely naked except for overlapping scales behind lateral nasal ridges; dorsal surface of snout broadly naked along each side of median rostral ridge; snout long, sharply pointed, its length 74–91% postrostral length (PRL), its dorsal profile gently concave in lateral view; terminal scute long, spearhead shaped, dorsoventrally flattened, with length 16–24% PRL when complete; lateral nasal ridge incompletely supported by nasal bone; anus abutting anal-fin origin; premaxillary teeth small, slender, conical in long, narrow, tapered band, and none distinctly enlarged; posterior margin of the tooth band almost reaching lateral corner of mouth; body scales covered with short, erect, slender spinules in widely divergent rows; spinules in each row completely free from one another, forming comb-like ridge; buttresses of spinules are poorly developed; second dorsal fin distinctly lower than anal fin; upper-jaw length 38–43% PRL; preoral length 65–82% PRL; length of gill slit 21–24% PRL; barbel length 9–14% PRL. Colouration: a slightly diagonal, narrow, dark stripe extending from upper margin of gill opening to below first dorsal-fin midbase or beyond; a faint, diagonal, dark stripe extending from pectoral-fin base to above anal-fin origin; median nasal bone is blackish; underside of head generally pale, without small, blackish, hair-like papillae; lips pale to dusky; front of premaxillary ascending process dusky to dark; oral cavity immaculate; gular and branchiostegal membranes heavily peppered; chest dark; first dorsal fin dusky to dark, with second spinous ray prominently blackish; pelvic fin dusky; pelvic fin heavily peppered (Ref. 123275). Cross section: oval.
Nakayama, N., A.M. Prokofiev and T. Kawai, 2020. Coelorinchus posteromaculatus (Actinopterygii, Gadiformes, Macrouridae), a new species of grenadier from the eastern Indian Ocean. Ichthyol. Res. 67:465-472. (Ref. 123275)
系統發育多樣性指數 (參考文獻 82804): PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00257 (0.00132 - 0.00501), b=3.19 (3.02 - 3.36), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
營養階層 (參考文獻 69278): 3.4 ±0.5 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 (Preliminary K or Fecundity.).
釣魚的脆弱性 (Ref. 59153): Low vulnerability (12 of 100). 🛈
