Lycenchelys Gill, 1884

Kawarada, Shumpei, Imamura, Hisashi, Narimatsu, Yoji & Shinohara, Gento, 2020, Taxonomic revision of the genus Lycenchelys (Osteichthyes: Zoarcidae) in Japanese waters, Zootaxa 4762 (1), pp. 1-66 : 4-5

publication ID

https://doi.org/ 10.11646/zootaxa.4762.1.1

publication LSID

lsid:zoobank.org:pub:BEBD8F0D-1347-4A44-86D4-2915433D2E7B

DOI

https://doi.org/10.5281/zenodo.3809749

persistent identifier

https://treatment.plazi.org/id/006C5E1A-FF92-FF98-3EC6-B7A4FA44ADA9

treatment provided by

Plazi

scientific name

Lycenchelys Gill, 1884
status

 

Genus Lycenchelys Gill, 1884 View in CoL View at ENA

(Japanese name: Hebigenge-zoku)

Lycenchelys Gill, 1884: 180 View in CoL (type species by subsequent designation: Lycodes muraena Collett, 1878 View in CoL ).

Lycodophis Vaillant, 1888: 311 (type species by monotypy: Lycodes albus Vaillant, 1888 View in CoL ).

Embryx Jordan & Evermann, 1898: 2458 (type species by original designation: Lycodopsis crotalinus ) .

Lyciscus Evermann & Goldsborough, 1907: 342 (type species by monotypy: Lycodopsis crotalinus Gilbert, 1890 ).

Apodolycus Andriashev, 1979: 29 (type species by original designation: Apodolycus hureaui Andriashev, 1979 ).

Diagnosis. Vertebrae 19–30 + 66–118 = 85–144; suborbital bones 6–10; suborbital pores 6–11; 1st dorsal-fin pterygiophores associated with vertebrae 2–21, with 0–16 free pterygiophores; palatopterygoid series weak; oral valve weak; pseudobranch, pelvic fins, and vomerine and palatine teeth usually present; scales, pyloric caeca and lateral line(s) present ( Anderson, 1994; Shinohara & Matsuura, 1998; Shinohara & Anderson, 2007; this study).

Distribution. Widespread in the Pacific (mainly in northwestern and eastern), Atlantic, Arctic and Southern oceans, and around the Kerguelen Islands ( Anderson, 1994, 2006; Anderson & Fedorov, 2004; Anderson & Møller, 2007; Shinohara & Anderson, 2007; Thiel et al., 2018; this study). Maximum collection depth 5320 m, in the Peru- Chile Trench (holotype of Lycenchelys atacamensis Andriashev, 1980 ) ( Andriashev, 1980; Anderson, 1988, 1995; Anderson & Fedorov, 2004).

Remarks. The genus Lycenchelys currently includes about 60 species ( Anderson & Fedorov, 2004; Anderson, 2006; Anderson & Møller, 2007; Shinohara & Anderson, 2007; Nelson et al., 2016; Thiel et al., 2018). This study recognizes 11 species of Lycenchelys in Japanese waters, in accordance with recent studies (i.e., Shinohara & Anderson, 2007; Hatooka, 2013).

The diagnosis of the genus above mainly follows Anderson (1994), except for the numbers of suborbital pores and total vertebrae, variations in which were reported by Shinohara & Matsuura (1998), Shinohara & Anderson (2007) and this study.

Keys to species of genus Lycenchelys from Japanese waters

1a. Interorbital pores absent............................................................................... 2

1b. Interorbital pores present............................................................................... 3

2a. Pelvic-fin base positioned below 7th suborbital pore; suborbital pores 7 + 1; preoperculomandibular pores 9; lateral lines 2; pectoral fin and its base having scales............................................................ L. remissaria

2b. Pelvic-fin base set posterior to suborbital pores; suborbital pores 6 + 1–2; preoperculomandibular pores 8; lateral line 1; pectoral fin and its base lacking scales............................................................. L. ryukyuensis

3a. Occipital pores absent................................................................................. 4

3b. Occipital pores present................................................................................ 5

4a. Total vertebrae 85–89; pectoral-fin rays 13–16; pectoral fin and its base lacking scales; body reddish orange when fresh.............................................................................................. L. aurantiaca

4b. Total vertebrae 91–95; pectoral-fin rays 17–19; pectoral fin and its base having scales; body dark brown when fresh................................................................................................. L. squamosa

5a. Distinct spots or blotches present on body.................................................................. 6

5b. Distinct spots or blotches absent on body.................................................................. 7

6a. Six to 10 white blotches present above upper edge of gill opening and on dorsal fin extending onto dorsal part of body; total vertebrae 122–128....................................................................... L. albomaculata

6b. Blackish irregular blotches on most portions of dorsal fin and dorsal part of body; total vertebrae 137–142.... .. L. maculata

7a. Pelvic fins present; suborbital bone arrangement L-shaped; a single lateral line.................................... 8

7b. Pelvic fins absent; suborbital bone arrangement semicircular; two lateral lines........................... L. tohokuensis

8a. First suborbital pore located just below nostril tube; interorbital pores 1–2, when 1 interorbital pore present, located between middle centers of eyes or slightly posteriorly................................................... L. hippopotamus

8b. First suborbital pore located behind nostril tube; interorbital pore 1, located anterior to center of eyes................... 9

9a. Occipital pore usually 1 (rarely 2 or 3), 1 pore always present on midline of occiput; preoperculomandibular pores 9–10; total vertebrae 132–139.......................................................................... L. makushok

9b. Occipital pores usually 2 (rarely 1), located on left and/or right sides of occiput; preoperculomandibular pores 7–9; total vertebrae 117–134....................................................................................... 10

10a. Opercular flap absent; distance between 2nd and 3rd postorbital pores long, 11.8–18.2% HL.................... L. rassi

10b. Opercular flap present; distance between 2nd and 3rd postorbital pores short, 4.1–9.2% HL............. L. melanostomias

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycodes

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycodes

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Order

Perciformes

Family

Zoarcidae

Genus

Lycodopsis

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Order

Perciformes

Family

Zoarcidae

Genus

Lycodopsis

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Order

Perciformes

Family

Zoarcidae

Genus

Apodolycus

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Kingdom

Animalia

Phylum

Chordata

ParvPhylum

Osteichthyes

Class

Actinopterygii

Order

Perciformes

Family

Zoarcidae

Genus

Lycenchelys

Loc

Lycenchelys Gill, 1884

Kawarada, Shumpei, Imamura, Hisashi, Narimatsu, Yoji & Shinohara, Gento 2020
2020
Loc

Apodolycus

Andriashev, A. P. 1979: 29
1979
Loc

Lyciscus

Evermann, B. W. & Goldsborough, E. L. 1907: 342
1907
Loc

Embryx

Jordan, D. S. & Evermann, B. W. 1898: 2458
1898
Loc

Lycodophis

Vaillant, L. 1888: 311
1888
Loc

Lycenchelys

Gill, T. N. 1884: 180
1884
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