Antigonia emanuela Prokofiev & Psomadakis & Gon 2020, new species
Antigonia emanuela, new species (New English name: Emanuela’s boarfish) (Figs. 1, 2, Table 1) Holotype. SAIAB 203818, 60.3 mm SL (Figs. 1A, 1B), off Ayeyarwady Delta, Myanmar, Andaman Sea, Indian Ocean, 13°3.21’ N, 96°41.62’ E, R/V Dr Fridtjof Nansen station 123, 121– 129 m, P.N. Psomadakis, 21 May...
| Main Authors: | , , |
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| Format: | Other/Unknown Material |
| Language: | unknown |
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2020
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| Subjects: | |
| Online Access: | https://zenodo.org/record/3806452 https://doi.org/10.5281/zenodo.3806452 |
| Summary: | Antigonia emanuela, new species (New English name: Emanuela’s boarfish) (Figs. 1, 2, Table 1) Holotype. SAIAB 203818, 60.3 mm SL (Figs. 1A, 1B), off Ayeyarwady Delta, Myanmar, Andaman Sea, Indian Ocean, 13°3.21’ N, 96°41.62’ E, R/V Dr Fridtjof Nansen station 123, 121– 129 m, P.N. Psomadakis, 21 May 2015. Paratype. SAIAB 207256, 66.4 mm SL (Fig. 1C), off Ayeyarwady Delta, Myanmar, Andaman Sea, Indian Ocean, 12°22.31’ N, 97°12.44’ E, R / V Dr Fridtjof Nansen station 119, 99– 100 m, P.N. Psomadakis, 21 September 2018. Note: The right pectoral fin of both type specimens is damaged. The whole fin of the paratype and part of it in the holotype were removed for genetic tissue samples. Diagnosis. A species of Antigonia unique within the genus in the following character combination: 9 dorsal-fin spines, 13 pectoral-fin rays, deeply rhomboid body with greatest depth 113.8–118.8% SL, premaxilla strongly bent in middle, scales with deep apical crest armed with numerous spines arranged in several rows distributed in almost all lateral surface of crest, with bright-yellow soft dorsal, anal and caudal fins in life. Description. Counts and proportional measurements are given in Table 1. Data in parentheses are of the paratype. Body deeply rhomboidal, its greatest depth clearly exceeds SL, 0.8 in or 118.8 % SL (0.9 and 113.8, respectively). Dorsal contour of body forming an almost right angle at dorsal-fin origin, strongly concave above the eye, shallowly concave and very steeply rising between tip of supraoccipital crest and dorsal-fin origin. Ventral contour of body rounded. Posterodorsal and posteroventral profiles of body very weakly and almost equally convex. Head small, 2.6 (2.5) in SL, horizontal eye diameter 2.8 (3.1) in head length, snout 1.2 (1.05) in eye diameter. Mouth gape almost horizontal. Lips somewhat thickened; alveolar ramus of premaxilla bent at almost right angle, its descending portion having a convex ventral margin, tapering toward a bluntly pointed tip. Posteroventral angle of maxilla somewhat extended ... |
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