Teleostei (teleosts) >
Acropomatiformes (Oceanic basses) >
Symphysanodontidae (Slopefishes)
Etymology: Symphysanodon: Greek, syn, symphysis = grown together + Greek, physis = growth body form + Greek, odous = teeth; related to few teeth which are located over the area where the two jaws meet (Ref. 45335); xanthopterygion: The name xanthopterygion is from the Greek xanthos (yellow), pterygion (fin)—referring to the yellow coloration of the lower caudal-fin lobe. The specific name of the new species is a noun in apposition to the generic name Symphysanodon (Ref. 87359).
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-neritic; depth range 150 - 240 m (Ref. 87359). Tropical; 10°N - 9°N, 75°E - 76°E
Eastern Indian Ocean: India. Known from the southeastern Arabian Sea off the Kerala Coast of southern India (Ref. 87359).
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 14.5 cm SL male/unsexed; (Ref. 87359); max. published weight: 7.30 g (Ref. 122102)
Short description
Identification keys | Morphology | Morphometrics
A species of Symphysanodon distinguishable from the other species of the genus by the following combination of characters. First caudal vertebra with parapophyses. Total gillrakers on first arch 38 to 42. Lateral line scales 54 to 59. Sum of lateral-line scales plus total number of gillrakers on individual specimens 94 to 101. Head length 33 to 37% SL. Head depth 18 to 21% SL. Snout length 5 to 6 % SL. Body depth 24 to 27 % SL. Lower caudal-fin lobe bright yellow; bright yellow spot usually present on posterior part of opercle (Ref. 87359).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Anderson, W.D. Jr. and K.K. Bineesh, 2011. A new species of the perciform fish genus Symphysanodon (Symphysanodontidae) from the Arabian Sea off the southwestern coast of India. Zootaxa 2966:31-36. (Ref. 87359)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5004 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01122 (0.00514 - 0.02450), b=3.04 (2.87 - 3.21), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.4 ±0.5 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
