Nezumia evides (Gilbert and Hubbs, 1920)

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 : 92

publication ID

https://doi.org/ 10.5281/zenodo.11512126

DOI

https://doi.org/10.5281/zenodo.12715577

persistent identifier

https://treatment.plazi.org/id/039F87BD-FFE7-1163-AB64-E2DAFCEDFAAF

treatment provided by

Felipe

scientific name

Nezumia evides (Gilbert and Hubbs, 1920)
status

 

Nezumia evides (Gilbert and Hubbs, 1920) View in CoL

Figure 18 View FIGURE .

Lionurus evides Gilbert and Hubbs, 1920:557, fig. 39 (holotype, USNM 78231; near Sibuko Bay [Celebes View in CoL Sea], Borneo, 4°12ʹ10ʺN, 118°38ʹ08ʺE, 260 fm [475 m]; 7 paratypes).

Nezumia evides View in CoL : Iwamoto, 1990:262, fig. 614 (in key).— Iwamoto and Williams, 1999:201 (mentioned).— Shao et al., 2008: table 2 (5 spec., Taiwan [ NET, SCS], 488–1027 m; first record from Taiwan) .

MATERIAL EXAMINED (17 spec.).— NET: ASIZP 65641 View Materials (4, 147–175+ TL), CP 214, 488– 1027 m ; ASIZP 70699 View Materials (2, 156–162 TL), Da-xi . SCS: ASIZP 66830 View Materials (1, 127+ TL), OCP 317, 515 m. Other specimens: CAS-SU 25467 View Materials (4 paratypes, 19.6–27.5 HL, 104+-146+ TL), off Borneo, 475 m ; CAS-SU 25468 View Materials (3 paratypes, 22.8–23.5 HL, 12–132+ TL), Molucca Sea off Halmahera [Gillolo], 545 m ; and Aberdeen Fishery Station , Hong Kong uncat. (3, 22.3–27.5 HL, 120–160 TL) , SCS s. of Hainan Is. , 200–400 fm [366–732 m] .

DISTINGUISHING FEATURES.— 1D II,9–13; P i16–i21; V 13–15; inner GR-I 8–11 total; scale rows below midbase 1D 7.0–7.5, below 2D 8.5–10; pyl. caeca about 25. Snout length 27–33% HL; interorbital 24–29%; orbit 31–36%; orbit to angle of preopercle 32–36%; upper jaw 29–34%; barbel 13–18%; length outer ray V 83–127%. Body relatively deep, 82–92% HL; head 4.1–5.8 in TL; snout short, high, projecting slightly beyond mouth, with stout tubercles at tip and lateral angles; mouth rather small, upper jaw extends posteriorly to under posterior margin of pupil; barbel well developed, about 2 ⁄ 5 to 1 ⁄ 2 orbit diameter; suborbital ridge with coarsely modified scales; underside of head to end of upper jaw and mandibular rami naked; body scales densely covered with short, conical spinules arranged in 8–13 parallel rows. Spinous 1D ray about equal to HL, denticulation on leading edge widely spaced; outer V ray extends to 10th to 20th A ray. Anterior dermal window of light organ small, situated between inner V bases; anus between V and A, but usually closer to inner V bases. Color in alcohol overall brownish, opercle and abdomen blackish with silvery sheen, abdomen underlain with bluish; mouth and gill cavities dark; 1D with distinct black tip. A small species, probably not much> 160 mm TL.

DISTRIBUTION.— From Taiwan, South China Sea , Philippines, Celebes Sea, Molucca Sea, in 475–1027 m; the Taiwan specimens were collected in 517 m ( NET) and 488–1027 m ( SCS).

REMARKS.— Our specimens represent the northernmost record, and the first record (as reported by Shao et al. 2008) from Taiwan and the South China Sea. Nezumia evides closely resembles N. condylura and N. propinqua in having similar head shape, high V counts, naked underside of snout and mandibles, black-tipped 1D, and scale size and spinulation. The slightly lower counts of V rays, somewhat longer outer V ray, slightly fewer scales below mid-1D and below 2D origin (7–7.5 vs. 8–9.5 and 8.5–10 vs. 10–13, respectively), shorter body (HL 4.1–5.9 in TL vs. 6.4–6.7), and possibly smaller size attained distinguish N. evides from the two.

SCS

Agriculture and Agri-Food Canada

V

Royal British Columbia Museum - Herbarium

Kingdom

Animalia

Phylum

Chordata

Order

Gadiformes

Family

Macrouridae

Genus

Nezumia

Loc

Nezumia evides (Gilbert and Hubbs, 1920)

Iwamoto, Tomio, Nakayama, Naohide, Shao, Kwang-Tsao & Table, Hsuan-Ching Ho 2015
2015
Loc

Lionurus evides

Gilbert and Hubbs 1920: 557
1920
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