Lepidotrigla macracaina, Gomon & Kawai, 2018

Gomon, Martin F. & Kawai, Toshio, 2018, A review of Indonesia’s Indian Ocean species of Lepidotrigla gurnards (Teleostei: Scorpaeniformes: Triglidae) with descriptions of three new species from southern coastal waters, Raffles Bulletin of Zoology 66, pp. 624-651 : 634

Lepidotrigla macracaina new species

Proposed English vernacular: Tophat gurnard Figs. 7A , 8 , 9A–C , 10 ; Tables 1, 2

Lepidotrigla sp. 1 Gloerfelt-Tarp & Kailola, 1984: 117, 320, fig. p. 116 (description, colour image); Inada & Wudianto (eds.), 2006: 29, 63 (colour image, survey list); Sainsbury et al., 1984: 336 (list, distribution).

Holotype. MZB 24604 (118 mm SL; formerly BMNH 1987.1.23.65) Indonesia, Bali, 08°43'S, 115°06'E, collected by P. Whitehead. Paratypes (14, 88.0– 128 mm SL). BMNH 1987.1 .23.63 (111 mm SL) Indonesia, Southeast Lombok, collected by T. Gloerfelt-Tarp ; BMNH 1987.1 .23.64 (125 mm SL) Indonesia, Lombok, collected by T. Gloerfelt-Tarp ; BMNH 1987.1 .23.66 (120 mm SL) Indonesia, Bali, 08°43'S, 115°06'E, collected by P. Whitehead ; HUMZ 191226 (128 mm SL) Indonesia, off Java, 08°06.17'S, 108°34.05'E – 08°04.22'S, 108°34.00'E, 210– 180 m , R / V BARUNA JAYA IV, bottom trawl, 6 September 2004, collected by K. Odani ; HUMZ 191227 (115 mm SL) Indonesia, off Java, 08°06.17'S, 108°34.05'E – 08°04.22'S, 108°34.00'E, 210– 180 m , R / V BARUNA JAYA IV, bottom trawl, 6 September 2004, collected by K. Odani ; HUMZ 191249 (89.6 mm SL) Indonesia, off Java, 08°06.17'S, 108°34.05'E – 08°04.22'S, 108°34.00'E, 210– 180 m , R / V BARUNA JAYA IV, bottom trawl, 6 September 2004, collected by K. Odani ; HUMZ 191250 (109 mm SL) Indonesia, off Java, 08°06.17'S, 108°34.05'E – 08°04.2'S, 108°34.00'E, 210– 180 m , R / V BARUNA JAYA IV, bottom trawl, 6 September 2004, collected by K. Odani ; HUMZ 191304 (88.0 mm SL) Indonesia, Java, 08°04.2'S, 109°16.5'E – 08°03.5'S, 109°14.5'E, 128– 125 m , R / V BARUNA JAYA IV, bottom trawl, 17 September 2004, collected by K. Odani ; HUMZ 191305 (123 mm SL) Indonesia, Java, 08°04.2'S, 109°16.5'E – 08°03.5'S, 109°14.5'E, 128– 125 m , R / V BARUNA JAYA IV, bottom trawl, 17 September 2004, collected by K. Odani ; HUMZ 193604 (125 mm SL) Indonesia, Java, 08°04.7'S, 108°24.7'E – 08°04.4'S, 108°23.4'E, 246–263 m , R / V BARUNA JAYA IV, bottom trawl, 4 May 2005, collected by T. Kawai ; HUMZ 193605 (122 mm SL) Indonesia, Java, 08°04.7'S, 108°24.7'E – 08°04.4'S, 108°23.4'E, 246–263 m , R / V BARUNA JAYA IV, bottom trawl, 4 May 2005, collected by T. Kawai ; HUMZ 193606 (111 mm SL) Indonesia, Java, 08°04.7'S, 108°24.7'E – 08°04.4'S, 108°23.4'E, 246–263 m , R / V BARUNA JAYA IV, bottom trawl, 4 May 2005, collected by T. Kawai ; MZB 24583 (96.5 mm SL; formerly HUMZ 191302 ) Indonesia, Java, 08°04.2'S, 109°16.5'E – 08°03.5'S, 109°14.5'E, 128– 125 m , R / V BARUNA JAYA IV bottom trawl, 17 September 2004, collected by K. Odani ; NTM S.10995-006 (124 mm SL) Indonesia, Bali Strait , Serpent Bank, 8.55°S, 114.517°E , TGT 2594 , 18 May 1983, collected by T. Gloerfelt-Tarp ; QMB I.25963 (109 mm SL) Indonesia, southeast of Lombok , 8°58'S, 116°34'E, 150–280 m , July 1981, collected by T. Gloerfelt-Tarp .

Diagnosis. Lateral profile of body with straight taper to slender caudal peduncle; distinctive postorbital notch above and behind each eye but not extending across top of head as occipital groove; rostral process with broad medial notch edged with small spines becoming progressively longer to corner on each side when viewed from above; lateral line with 62–67 pored scales; 3 scales above lateral line and about 13 to 16 scales below lateral line; first dorsal fin with 8 (rarely 7) spines, second significantly longer than first and third, second dorsal fin with 16 or 17 rays; anal fin with 16 or 17 (rarely 15) rays; pectoral fins reaching about third to fifth anal fin ray, first free pectoral fin ray reaching well short of pectoral fin tip, but to or almost to tip of pelvic fin. Distal half of caudal fin red with dusky grey obscuring upper third; inner surface of pectoral fin charcoal to dark green to distal margin with moderately large bright blue spots arranged in four or five transverse bands, fine reddish margin dorsally and ventrally.

Figures

Fig. 7. A, Lepidotrigla macracaina new species, NTM S.10995-006, 124 mm SL, paratype, Indonesia, Bali Strait, Serpent Bank, 8.55°S, 114.517°E (photo by T. Gloerfelt-Tarp, image reversed); B, Lepidotrigla guentheri, KPM-NI 35882, Japan, Shizuoka Prefecture, Suruga Bay, west of Izu Peninsula, 55 m, 22 December 2013 (photo by H. Senou).

Fig. 8. Lateral and dorsal views of head of Lepidotrigla macracaina new species, HUMZ 191305, 123 mm SL, paratype, Indonesia, Java, 08°04.02'S, 109°16.05'E – 08°03.05'S, 109°14.05'E, 128–125 m, arrow pointing to tip of first free pectoral fin ray.

Fig. 9. Dorsal view of rostrum illustrating spine variation. Lepidotrigla macrcaina new species, A, HUMZ 191305, 123 mm SL, paratype, Indonesia, Java,08°04.02'S, 109°16.05'E – 08°03.05'S, 109°14.05'E, 128–125 m; B, HUMZ 193605, 122 mm SL, paratype, Indonesia, Java, 08°04.07'S, 109°16.05'E – 08°04.04'S, 108°23.04'E, 246–263 m; C, HUMZ 191304, 88.0 mm SL, paratype, Indonesia, Java, 08°04.02'S, 109°16.05'E – 08°03.05'S, 109°14.05'E, 128–125 m. Lepidotrigla guentheri, D, HUMZ 170718, 128 mm SL, Japan, Chiba Prefecture, Choshi Fishing Port.

Fig. 10. Collection localities for holotype (black circle) and paratypes (red circles) of Lepidotrigla macracaina new species from coastal waters of southern Indonesia.