Neolaeops microphthalmus ( von Bonde, 1922 )

Amaoka, Kunio & Ho, Hsuan-Ching, 2019, The lefteye flounder family Bothidae (Order Pleuronectiformes) of Taiwan, Zootaxa 4702 (1), pp. 155-215 : 196-197

publication ID

https://doi.org/ 10.11646/zootaxa.4702.1.18

publication LSID

lsid:zoobank.org:pub:9108DB7D-3722-4F5C-BD76-F387E813BECB

DOI

https://doi.org/10.5281/zenodo.5584363

persistent identifier

https://treatment.plazi.org/id/194987B1-5D55-FD4E-DA8B-973B8020FAE2

treatment provided by

Plazi

scientific name

Neolaeops microphthalmus ( von Bonde, 1922 )
status

 

Neolaeops microphthalmus ( von Bonde, 1922) View in CoL

Crosseyed flounder; ŀȇƗÉľ

Figure 8A View FIGURE 8 ; Table 10 View TABLE 10

Laeops microphthalmus von Bonde, 1922:11 View in CoL (Type locality: coast of Natal, East Africa).

Arnoglossus microphthalmus: Norman, 1931:508 View in CoL ; Chen & Weng, 1965:44.

Neolaeops microphthalmus: Amaoka, 1969:149 View in CoL ; Shen, 1983:34; Shen in Shen et al., 1993:571; Shen & Wu, 2012:753.

Specimen examined. NMMB-P04832 (4, 122.4–162.3), Dong-gang , 9 Oct. 1965 ; NMMB-P06242 (1, 166.0), Dong-gang , 6 Feb. 1966 ; NMMB-P08116 (1 male, 168.6), Dong-gang , 16 Apr. 2004 ; NMMB-P14234 (1, 101.2), Dong-gang , 6 Sep. 2011 ; NMMB-P15268 (1 female, 168.9), Dong-gang , 28 Oct. 2011 ; NMMB-P20986 (1 male, 110), Dong-gang , 12 Mar. 2014 ; NMMB-P21127 (1 male, 3 females, 148.4–168.7), Ke-tzu-liao, 2 Apr. 2014 ; NMMB-P22078 (2, 104–177), Dong-gang , 7 Nov. 2013 ; NMMB-P22227 (1, 128.5), Dong-gang , 22 Apr. 2014 ; NMMB-P25673 (1 male, 1 female, 152.3–167.4), Dong-gang , 20 Jan. 2016 ; NMMB-P25681 (1 male, 168.9), Fugang , Taitung, 12 Jan. 2017 . More specimens deposited in NMMB-P.

Diagnostic features. D 104–112; A 81–92; P 13–16; C 2–4+10–12+2–4=17; LLs 93–104; GR 3–6+6–10=12– 16; vert. 13+37–38=50–51.

Body elongated and strongly compressed, deepest near anterior 1/3 part of body (38.9–43.5% SL). Caudal peduncle narrow, its depth 6.0–6.9% SL. Head small, its length about half of body depth (19.5–21.5% SL); front of head with deep concavity anterior of upper eye; head profile round. Snout slightly protruding, snout length slightly longer than eye diameter. Eyes small, diameter about 1/2 of upper jaw length; upper eye extremely close to dorsal margin of head. Interorbital space narrow, bony ridge extending from anterior margin of lower eye to posterior interorbital space.

Mouth moderate and almost symmetrical, upper-jaw length on ocular side about 7.4–8.8% SL; maxilla extending to or slightly beyond anterior margin of lower eye. Teeth on both jaws uniserial, with enlarged and canine-like teeth anteriorly, small and close-set laterally on upper jaw, lateral teeth on lower jaw stronger and wider spaced than those on upper jaw. Gill rakers absent on upper limb, those on lower limb slender, pointed, and smooth. Scales very small and deciduous, cycloid on both sides. Pectoral fin on ocular side very short, about half of head length (10.0–11.9% SL); that on blind side shorter and more feeble. Caudal fin round and slender.

Coloration. Ocular side of body uniformly pale brownish without distinct blotches or spots, snout dark; dorsal and anal fins and pelvic fin on ocular side black; several middle rays of caudal fin black distally. Blind side of body uniformly milky white.

Size. Reaching 169 mm SL in Taiwan; up to about 210 mm SL elsewhere ( Hensley & Amaoka, 2001).

Distribution. Western and southwestern Taiwan; widespread in Indian and Western Pacific oceans, including South China Sea, East China Sea, southern Japan, East Africa ( Amaoka, 2016).

Remarks. This species superficially resembles members of Japonolaeops and Laeops , but is readily distinguished by its deeper body, larger mouth and smaller eyes.

Kingdom

Animalia

Phylum

Chordata

Class

Actinopterygii

Order

Pleuronectiformes

Family

Bothidae

Genus

Neolaeops

Loc

Neolaeops microphthalmus ( von Bonde, 1922 )

Amaoka, Kunio & Ho, Hsuan-Ching 2019
2019
Loc

Neolaeops microphthalmus

: Amaoka 1969: 149
1969
Loc

Arnoglossus microphthalmus:

Norman 1931: 508
1931
Loc

Laeops microphthalmus

von Bonde 1922: 11
1922
GBIF Dataset (for parent article) Darwin Core Archive (for parent article) View in SIBiLS Plain XML RDF