Taxonomic review of the genus Johnius (Perciformes: Sciaenidae) from East Malaysian waters, with comments on newly recorded Johnius species Author Hanafi, Norhafiz Department of Oceanography (Marine Biology group), National Sun Yat-sen University, Kaohsiung, Taiwan, R. O. C. Author Chen, Meng-Hsien Department of Oceanography (Marine Biology group), National Sun Yat-sen University, Kaohsiung, Taiwan, R. O. C. & Institute of Marine Ecology and Conservation, National Sun Yat-sen University, Kaohsiung, Taiwan, R. O. C. Author Chang, Chih-Wei Department of Oceanography (Marine Biology group), National Sun Yat-sen University, Kaohsiung, Taiwan, R. O. C. & Marine Ecology and Conservation Research Center, National Academy of Marine Research, Kaohsiung, Taiwan, R. O. C. & National Museum of Marine Biology and Aquarium, and Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan, R. O. C. Author Chao, Ning Labbish National Museum of Marine Biology and Aquarium, and Graduate Institute of Marine Biology, National Dong Hwa University, Pingtung, Taiwan, R. O. C. & Bio-Amazonia Conservation International, Boston, Massachusetts, USA Author Seah, Ying Giat Faculty of Fisheries and Food Science, University Malaysia Terengganu (UMT), Kuala Terengganu, Malaysia & Fish Division, South China Sea Repository and Reference Center, Institute of Oceanography and Environment, University Malaysia Terengganu (UMT), Kuala Terengganu, Malaysia text Zootaxa 2024 2024-12-10 5550 1 85 117 https://doi.org/10.11646/zootaxa.5550.1.11 journal article 306734 10.11646/zootaxa.5550.1.11 0522af6a-1e4c-4918-8940-a921577dee94 1175-5326 14388193 44C6949D-67DE-4C01-ABC8-3FB0F163BF5F

TABLE 7. Morphometric measurement of J. heterolepis, J. macrorhynus, J. plagiostoma, J. sasakii and J. weberi.

SPECIES	J. heterolepis	J. macrorhynus	J. plagiostoma	J. sasakii	J. weberi
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	(n=30)	(n=30)	(n=19)	(n=18)	(n=3)
Morphometric measurements
Standard length(mm)	86–133	82–200	71–103	100–147	116–128
As percentage of SL
Head length	28.7–32.6(31.1±0.9)	27.4–33.3(30.7±1.1)	28.0–31.3(29.8±0.9)	27.7–32.3(30.2±1.2)	29.9–30.9(30.3±0.5)
Pectoral fin length	16.4–22.7(19.3±1.7)	14.3–21.1(17.2±1.8)	15.7–22.3(19.4±1.6)	16.6–24.9(19.7±2.3)	17.2–19.5(18.7±1.3)
Pelvic fin length	12.8–16.7(15.2±0.9)	10.5–17.5(14.3±1.6)	14.6–18.5(16.8±1.0)	12.7–20.0(16.1±2.0)	15.3–16.7(16.0±0.7)
Body depth	22.8–32.0(26.9±1.7)	24.5–30.4(27.5±1.4)	26.0–30.1(28.3±1.0)	25.2–29.0(27.1±1.2)	20.9–24.6(23.1±2.0)
Body width	12.9–17.3(14.7±1.0)	12.7–19.8(15.7±1.7)	14.0–16.0(15.1±0.5)	13.4–18.5(15.5±1.8)	9.4–14.5(11.9±2.5)
1 st dorsal fin base length	15.4–20.9(18.0±1.5)	16.3–21.3(18.8±1.2)	16.6–21.4(18.9±1.2)	15.9–23.1(19.3±2.0)	19.0–21.4(20.0±1.3)
4 th spine of 1 st dorsal fin length	9.5–16.4(13.0±1.5)	10.7–16.9(14.2±1.5)	10.1–16.6(14.1±1.6)	11.9–16.7(13.8±1.3)	14.0–15.4(14.8±0.8)
2 nd dorsal fin base length	36.3–42.7(39.7±1.8)	34.3–43.2(38.7±1.9)	39.9–44.4(42.1±1.2)	35.8–44.8(39.7±2.5)	38.2–42.0(40.6±2.0)
5 th ray of 2 nd dorsal fin length	7.9–13.0(10.1±1.1)	6.6–11.0(8.5±0.9)	8.3–13.1(11.1±1.4)	7.0–14.4(9.8±1.7)	11.4–12.8(12.0±0.8)
Anal fin base length	8.6–10.7(9.5±0.6)	7.3–11.7(8.7±0.7)	9.1–11.8(10.5±0.7)	6.8–10.2(8.8±0.9)	8.1–10.3(9.5±1.2)
2 nd spine of anal fin length	7.6–11.0(8.9±0.8)	4.8–9.3(6.9±0.9)	7.2–12.2(10.0±1.2)	7.4–10.2(8.5±0.8)	9.4–11.0(10.3±0.8)
1 st ray of anal fin length	10.7–14.4(12.8±1.0)	8.9–13.1(10.8±1.0)	10.7–15.9(14.0±1.2)	9.0–13.3(10.9±1.0)	13.5–15.1(14.1±0.8)
Preanal length	65.7–74.2(70.2±1.7)	65.7–74.0(70.2±2.0)	67.5–72.0(69.1±1.4)	67.1–73.3(70.6±1.5)	68.5–69.4(69.1±0.5)