Trachonurus villosus ( Günther, 1877 )

Iwamoto, Tomio, Nakayama, Naohide, Shao, Kwang-Tsao & Table, Hsuan-Ching Ho, 2015, Synopsis of the Grenadier Fishes (Gadiformes; Teleostei) of Taiwan, Proceedings of the California Academy of Sciences 62 (3), pp. 31-126 : 104

publication ID	https://doi.org/ 10.5281/zenodo.11512126
persistent identifier	https://treatment.plazi.org/id/039F87BD-FF93-1117-AB64-E19AFF41F9DD
treatment provided by	Felipe
scientific name	Trachonurus villosus ( Günther, 1877 )
status

Treatment

Trachonurus villosus ( Günther, 1877) View in CoL

Figure 26 View FIGURE .

Coryphaenoides villosus Günther, 1877:441 View in CoL (holotype BMNH 1887.12.7. 105; s. of Tokyo, Japan).— Günther, 1887:142 (second specimen BMNH 1887.12.7. 106 [non-type] from s. of the Philippines added).

Trachonurus villosus View in CoL : Okamura in Masuda et al., 1984:95 (compiled).— Okamura in Amaoka et al., 1990:193.— Iwamoto, 1997:944–947 (comparison with T. robinsi View in CoL ).— Iwamoto and Williams, 1999:212 (mentioned).— Shao et al., 2008: table 2 (5 spec.; Taiwan [ SCS], 634–954 m).

MATERIAL EXAMINED (4 spec.).— SWT: ASIZP 65626 View Materials (2, 175–255+ TL), CD 203, 634– 866 m. SCS: ASIZP 66094 View Materials (1, 60 HL, 345+ TL) and ASIZP 66909 View Materials (1, 155+ TL), CD 321, 954 m.

DISTINGUISHING FEATURES.— 1D II,8; P 14–17; V 7; total GR-I (inner) 9–13; scale rows below origin 2D 5–9, usually 6–7, below midbase 1D 5–7; lateral line scales over distance equal to pre-1D length 26–34; scale rows between base of V and gill cover 10–14; pyl. caeca 9–13, short, thick. Grooved lateral line present; body scales relatively small, finely covered with erect spinules. Jaw teeth all small. Snout length 23–27% HL; interorbital width 31–34%; orbit diameter 29–30%; suborbital width 11–12%; postorbital length 38–42%; orbit-preopercle 29–33%; upper jaw 30–33%; barbel 6+–11%; 1D-2D interspace 20–22%. (Adapted from Iwamoto 1997.)

DISTRIBUTION.— Known from Japan to Taiwan and the Philippines. In Taiwan, specimens were taken from the South China Sea in 634–954 m.

REMARKS.— More specimens of this species must be examined from near the type locality off Japan to properly circumscribe the species and determine its difference from other described species .