Teleostei (teleosts) >
Perciformes/Serranoidei (Groupers) >
Anthiadidae (Fairy basslets or Streamer basses)
Etymology: Plectranthias: Greek, plektron = anyhting to strike with, spur + Greek, anthias = a fish, Sparus aurata (Ref. 45335); purpuralepis: The specific name purpuralepis is a combination of the Latin purpura and lepis, meaning purple scales, in reference to the distinct purple color only present after preservation. The name is treated as a noun in apposition.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 200 - ? m (Ref. 124021). Deep-water
Northwest Pacific: Northern Taiwan,
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 15.1 cm SL male/unsexed; (Ref. 124021)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 10; Dorsal soft rays (total): 16 - 17; Anal spines: 3; Anal soft rays: 7; Vertebrae: 26. This species is distinguised by the following characters: the pectoral and pelvic fins are mostly covered by small scales and scales on the whitish pink blotches turn purple when preserved; D X,16-17 with the 3rd dorsal-fin spine longest; pectoral-fin rays usually 14, all branched except for uppermost ray simple; principal caudal-fin rays 9 + 8; pored lateral-line scales 32036; cheek with 6 diagonal rows of large scales; circumpeduncular scales 14; ca. 7 rows of large predorsal scales, 2 irregular rows of small scales extending to a line through posterior nostrils; maxilla and chin scaleless; posterior margin of preopercle serrated, the ventral margin with 2 antrorse spines; the greatest body depth 32.6-35.1% SL (Ref. 124021).
This species apparently occurs on rocky reef bottom or slope in the mesophotic zone. Judging from other specimens (Parapercis spp., Plectranthias kamii, P. sheni, Helicolenus hilgendorfii) collected by anglers together with this species, these were taken at depths of 200 m or below (Ref. 124021).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Tang, C,-N., N.-W. Lai and H.-C. Ho, 2020. Plectranthias purpuralepis sp. nov., a new anthiadine perchlet from northern Taiwan (Perciformes: Serranidae). Zootaxa 4780(3):508-522. (Ref. 124021)
IUCN Red List Status (Ref. 130435: Version 2024-1)
Threat to humans
Harmless
Human uses
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = No PD50 data [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01349 (0.00618 - 0.02945), b=3.00 (2.81 - 3.19), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.1 ±0.6 se; based on size and trophs of closest relatives
Resilience (Ref.
120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
