Chaunax apus Lloyd, 1909

Ho, Hsuan-Ching & Ma, Wen-Chun, 2016, Revision of southern African species of the anglerfish genus Chaunax (Lophiiformes: Chaunacidae), with descriptions of three new species, Zootaxa 4144 (2), pp. 175-194: 190

publication ID

http://doi.org/10.11646/zootaxa.4144.2.2

publication LSID

lsid:zoobank.org:pub:39BEEF12-011C-48E8-9C38-5476922F5845

persistent identifier

http://treatment.plazi.org/id/631087A3-156D-901B-FF0B-4BEB5EAB7843

treatment provided by

Plazi

scientific name

Chaunax apus Lloyd, 1909
status

 

Chaunax apus Lloyd, 1909 

Tables 2 –4

Chaunax apus Lloyd, 1909:169  (type locality: Bay of Bengal, off Akyab coast, Myanmar, Investigator station 379, 530 fathoms [969 m]). Caruso, 1989:160; Ho & Last, 2013:444; Ho et al., 2015:307.

Material examined. Madagascar: MNHNAbout MNHN 1977-0030View Materials (1 of 2, 119), 22°17'9.6"S, 43°4'1.2"E, 450 m, 29 Nov. 1973GoogleMaps  . MNHN 1977-0031 (1, 110.7), 22°16'8.4"S, 43°7'8.4"E, 195–200 m, 1 Dec. 1973. MNHN 1977-0040 (2, 194–195), 22°13'4.8"S, 43°1'58.8"E, 670–710 m, 2 Dec. 1973. MNHN 1977-0045 (3,66.5–117.2), 12°44'6"S, 48°10'4.8"E, 563–570 m, 5 Mar. 1971. SAIAB 31339 (1, 88.7), 12°28'S, 48°09'E, off Nosy-Be, 700–710 m, 12 Nov. 1988. South Africa: SAIABAbout SAIAB 2727View Materials (1, 142), 33°03'S, 18°00'E, off Saldanha Bay , Western Cape, 16 Oct. 1972GoogleMaps  . SAIABAbout SAIAB 4712View Materials (1, 152), off Durban , KwaZulu-Natal, Sep. 1967  . SAIABAbout SAIAB 10637View Materials (1, 85.0), 27°44.4'S, 32°42.8'E, NE of Cape Vidal, 400–450 m, 26 May 1975GoogleMaps  . SAIABAbout SAIAB 44919View Materials (1, 111), West of Saldanha Bay , Western Cape, 440 m, 10 Sep. 1994  . Kenya: SAIABAbout SAIAB 13789View Materials (1, 96.1), 4°22'S, 39°42'E, off Shimoni , 380 m, 9 Dec. 1980GoogleMaps  . SAIABAbout SAIAB 14043View Materials (2, 106–234), 4°17'S, 40°07'E, off Mombasa, 687–750 m, 10 Dec. 1980GoogleMaps  . SAIABAbout SAIAB 14071View Materials (1, 67.2), 3°04'S, 40°25'E, off Malindi, 280 m, 17 Dec. 1980GoogleMaps  . Mozambique: SAIABAbout SAIAB 82130View Materials (1, 253), 21°52'S, 35°48.6'E, 742–758 m, 17 Oct. 2007GoogleMaps  .

Diagnosis. A species of C. abei  -species group with uniform pinkish color when fresh, creamy white when preserved; dermal spinules slender and curved; escal cirri colorless or with light brown tips; gill rakers on second gill arch; GR ii=11 or 12; and lateral-line neuromasts: BD=3, GH=13–17, BI=33–38, 3–5 (usually 5) on caudal-fin base.

Distribution. This species is most likely widespread in Indo-west Pacific and appear to be abundant (unpub. data). Specimens were collected from a broad range in western Indian Ocean at depths 195– 969 m.

Remarks. Ho & Last (2013) discussed the validity of this species, being the first species described in the C. abei  -species group, and is considered a valid species.

Although this seems to be a common species found in Indo-west Pacific Ocean, we have observed several geographic populations in different regions. This species is thus currently recognized as a probable species complex, but more investigation is needed. It can be separated from two New Zealand species, C. russatus  and C. mulleus  , by mainly having 3 spines on each side of neuromast (vs. 1); 12 rakers on second gill arch (vs. 14 or 15); and pale gill arch and gill chamber (vs. grayish).

MNHN

Museum National d'Histoire Naturelle

SAIAB

South African Institute for Aquatic Biodiversity

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Lophiiformes

Family

Chaunacidae

Genus

Chaunax

Loc

Chaunax apus Lloyd, 1909

Ho, Hsuan-Ching & Ma, Wen-Chun 2016

2016
Loc

Chaunax apus

Ho 2013: 444
Caruso 1989: 160Lloyd 1909: 169

1989