Halosauropsis macrochir (Günther, 1878), Gunther, 1878
publication ID |
https://doi.org/ 10.11646/zootaxa.4184.3.3 |
publication LSID |
lsid:zoobank.org:pub:7139E416-F8B1-4769-9EE7-D92FC28AADA1 |
DOI |
https://doi.org/10.5281/zenodo.6066559 |
persistent identifier |
https://treatment.plazi.org/id/03E1878B-FFD1-FFEC-FCE4-F8AAFAAEFB76 |
treatment provided by |
Plazi |
scientific name |
Halosauropsis macrochir (Günther, 1878) |
status |
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Halosauropsis macrochir (Günther, 1878) View in CoL
Fig. 2.
Halosaurus macrochir (Günther, 1878) View in CoL : (251) 23. Off Strait of Gilbraltar, Challenger station 5, depth 1,090 fathoms. Lectotype: BMNH 1887.12.7.237. McDowell 1973: 74–87 (description, key); Sulak 1977: 11–12 (key); Paulin & Moreland 1979: 268–270 (description); Sulak 1986a: 593–598 (description, key); Machida et al. 1988 (description); Gon 1990 (description); Smith 2003 (key); Bergstad et al. 2012 (age, growth).
Material examined. MHNUSC 25009- 1, 536 mm TL, 7th August 2011, Galicia Bank , 42º41.771'N— 11º33.647'W, 1,477m depth; MHNUSC 25009- 2, 528 mm TL, 8th August 2011, Galicia Bank GoogleMaps ; 42º43.536'N— 11º28.128, 1,751 m depth; MHNUSC 25009- 3, 604 mm TL, 8th August 2011, Galicia Bank ; 42º43.536'N— 11º28.128; 1,751 m depth; MHNUSC 25009- 4, 585 mm TL, 8th August, Galicia Bank ; 42º43.536'N— 11º28.128, 1,751 m depth; MHNUSC 25009- 5, 566 mm TL, 29th July 2011, Galicia Bank ; 42º56.172'N— 11º 55.816’W, 1,545 m depth; MHNUSC 25009- 6, 626 mm TL, 29th July 2011, Galicia Bank GoogleMaps , 42º56.172'N — 11º 55.816’W, 1,545 m depth; MHNUSC 25009- 7, 579 mm TL, 29th July 2011, Galicia Bank , 42º56.172'N—11º 55.816’W; 1,545 m depth.
Description. Body shape eel-like, moderately compressed, elongated and attenuated to the caudal peduncle; top of snout and head scaleless, opercle scaled; head depressed anteriorly, the interorbital length is contained 4.8– 6.2 times in the head length; dorsal origin slightly posterior to pelvic origin; first dorsal ray segmented and as long as 2nd dorsal ray; pectoral fin long and narrow, almost reaching to the base of the dorsal fin and contained 1.2–1.3 times in the head length; a deeply pigmented sheath of the lateral line composed by enlarged scales; pyloric caeca long, creamy white in colour, arranged in a single row at the base. The main morphometric and meristic characteristics are presented in Table 3 View TABLE 3 .
FIGURE. 2 Halosauropsis macrochir from the northeastern Atlantic Ocean, MHNUSC 25009- 5, 566 mm total length.
Habitat and distribution. Benthopelagic on the lower slope, rise and seamounts, between 1,100 and 3,300 m depth. Cosmopolitan: eastern Atlantic from Ireland to Mauritania and South Africa ; central Atlantic, along the Mid-Atlantic Ridge; western Atlantic, including Canada to 25°N, and off southern Brazil ; western Pacific, including Australia, New Zealand and Japan; and western Indian Ocean ( Sulak 1986a; Bergstad et al. 2012).
TABLE 3. Comparison of morphometric, meristic data and respective body proportions for specimens of Halosauropsis macrochir.
Halosauropsis macrochir Total Length (mm) | MHNUSC 25009 (1–7) 528–626 | McDowell (1973) Paulin and N=8 Moreland (1979) N=4 — — | Filatova. (1985) N=84 340–800 |
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Preanal length (mm) Gnathoproctal length (mm) | 214–258 193–234 | — — 186–271 189–268 | — — |
As % GPL Head length Eye diameter Preorbital length | 34.6–37.8 3.7–4.6 14.1–16.1 | — — 4.2–5.4 — 14.3–17.7 — | — — — |
Postorbital length Interorbital length | 15.2–17.6 6.0–7.9 | — — — 7.2–8.4 | — — |
Preoral snout length Predorsal length Dorsal base length Pectoral length | 4.1–4.5 70.4–75.6 12.0–14.1 26.4–31.1 | 3.5–5.4 — — — — — — — | — — — — |
Prepelvic length Pelvic length | 68.3–71.2 13.6–15.2 | — — — — | — — |
Body depth Meristic features Dorsal fin rays Ventral fin rays | 14.4–19.8 12–14 I+8–9 | — — 11–13 11–12 I+9 — | — 10–13 8–10 |
Pectoral fin rays SLL to anus | 10–13 30–32 | 12–13 12 26–32 — | 10–14 — |
SLL to pelvic origin Scales above lateral line Branchiostegal rays Gill rakers | 13–14 13–14 10–11 3+1+9–10 | 12–16 14 14–16 12–14 11–13 11–12 15–16 12–13 | 12–16 10–13 10–13 12–16 |
Pyloric caeca | 8–12 | 10–12 11–12 | 7–13 |
No known copyright restrictions apply. See Agosti, D., Egloff, W., 2009. Taxonomic information exchange and copyright: the Plazi approach. BMC Research Notes 2009, 2:53 for further explanation.
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Halosauropsis macrochir (Günther, 1878)
Bañón, Rafael, Arronte, Juan Carlos, Armesto, Ángeles, Barros-García, David & Carlos, Alejandro De 2016 |
Halosaurus macrochir (Günther, 1878)
Gunther 1878 |