Engyprosopon keliaoense, a new lefteye flounder (Teleostei: Bothidae) from Taiwan Author Amaoka, Kunio Professor emeritus, Hokkaido University, Hakodate, Hokkaido, Japan Author Ho, Hsuan-Ching National Museum of Marine Biology and Aquarium, Pingtung, Taiwan & Australian Museum, Sydney, Australia & Department and Graduate Institution of Aquaculture, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan * Corresponding author: ogcoho @ gmail. com text Zootaxa 2022 2022-09-23 5189 1 222 232 journal article 153857 10.11646/zootaxa.5189.1.20 72b6d661-489d-4101-b9e4-82130bbdb743 1175-5326 7119483 66767AE5-DB1B-4785-AD1D-347A49E89233

TABLE 1. Morphometric data of Engyprosopon keliaoense sp. nov., and E. grandisquama and its junior synonyms. M= Male, F= Female, O= Ocular side, B= Blind side. HT= Holotype, PT= Paratype(s), LT= Lectotype, PLT= Paralectotypes, NT= Non-types.

Taxon	E. keliaoense sp. nov.	E. grandisquama		Rhombus grandisquama	Rhombus poecilurus	Rhombodoichthys spilurus
	HT (PT)	NT (Japan)	NT (Taiwan)	LT (PLT)	HT (PT)	HT
SL (mm), n, sex	67.7/M (66.7– 72.4/1M, 2F)	70.3‒79.5/10M, 63.5‒89.2/10F	59.8–82.5/27M, 51.1–74.1/14F	78.3/M (57.0–70.7/3M)	67.6/F (68.3/F)	81.4/M
% SL		Mean (Range)	Mean (Range)
Head length	24.7 (24.4–24.9)	26.3 (25.0‒27.5)	25.1 (22.3–27.4)	25.0 (25.4–26.2)	25.4 (24.5)	25.1
Body depth	55.5 (54.0–55.0)	53.9 (51.1‒57.3)	56.5 (51.8–61.3)	53.4 (51.9–56.2)	52.7 (49.8)	57.1
Snout length	4.9 (5.0–5.2)	5.3 (4.2‒6.3)	5.1 (4.6–5.8)	5.0 (5.1–5.4)	4.9 (5.2)	5.0
Upper eye diameter	6.9 (6.6–6.7)	7.9 (7.3‒8.6)	8.2 (7.0–9.3)	7.3 (7.9–8.1)	7.4 (7.6)	7.4
Lower eye diameter	7.1 (6.6–6.9)	8.3 (7.5‒9.2)	8.0 (7.0–8.9)	- (7.4–8.4)	7.4 (7.4)	7.4
Interorbital width (M)	4.1 (3.8)	9.1 (8.1‒9.9)	9.0 (7.4–10.2)	7.2 (6.5–8.4)	-	5.1
Interorbital width (F)	(2.5–3.1)	5.0 (3.9‒6.7)	4.8 (3.9–5.8)	-	3.6 (3.0)	-
Upper jaw length (O)	8 (7.7–8.4)	8.4 (7.5‒9.4)	7.6 (6.3–8.3)	7.6 (8.4–8.6)	7.7 (8.1)	8.3
Upper jaw length (B)	8 (7.7–7.9)	8.4 (7.6‒9.1)	7.5 (7.0–8.2)	7.9 (8.2–9.1)	~7.5	-
Lower jaw length (O)	11.7 (11.1–11.6)	11.5 (10.2‒12.3)	11.0 (9.9–11.7)	10.7 (10.8–11.9)	11.5(11.4)	11.0
Lower jaw length (B)	12.6 (11.8–12.6)	12.5 (9.9‒13.5)	11.6 (10.3–12.5)	-	-	-
Depth of caudal peduncle	12.9 (12.6–13.6)	12.9 (11.7‒13.7)	12.8 (11.4–13.9)	13.0 (12.5–13.0)	13.3 (12.6)	13.1
Pectoral fin length (O) (M)	19.8 (18.2)	23.8 (21.1‒25.7)	23.1 (20.4–24.9)	23.2 (20.5–26.2)	-	20.4
Pectoral fin length (O) (F)	(17.1–19.2)	24.7 (23.4‒26.2)	22.4 (19.3–24.8)	-	22.0 (19.0)	-
Pectoral fin length (B)	14.2 (12.0–12.7)	13.4 (11.8‒14.8)	12.9 (11.4–14.1)	12.1 (12.7–13.8)	13.6 (-)	-
Pelvic fin length (O)	15.5 (11.9-12.6)	12.2 (10.5‒13.8)	10.5 (8.9–12.6)	-	-	-
Pelvic fin length (B)	11.4 (10.4–11.5)	12.4 (11.2‒13.7)	10.8 (8.3–12.2)	-	-	-
Base of pelvic fin (O)	11.2 (9.6–10.4)	11.0 (10.2‒11.9)	10.5 (9.4–11.3)	-	-	-
Base of pelvic fin (B)	3.8 (2.7–3.3)	4.9 (3.9‒5.6)	3.8 (3.0–4.4)	-	-	-
Longest dorsal fin ray	13.9 (11.7–12.3)	13.3 (11.3‒15.1)	12.6 (10.0–15.4)	12.7 (11.4–11.9)	11.8 (-)	-
Longest anal fin ray	13.7 (11.9–13.2)	13.6 (11.8‒15.5)	12.8 (10.3–14.2)	12.5 (12.0)	11.3 (11.1)	-
Middle caudal fin ray	22.6 (20.4–20.9)	-	22.7 (19.6–23.8)	(19.3–21.1)	20.5 (18.4)	-