Teleostei (teleosts) >
Eupercaria/misc (Various families in series Eupercaria) >
Labridae (Wrasses)
Etymology: Paracheilinus: Greek, para = the side of + Greek, chaite = hair + Greek, odous = teeth (Ref. 45335); walton: Named for the Walton Family Foundation; noun in apposition.
Eponymy: The Walton Family Foundation was founded by American philanthropist Samuel Moore Walton (1918–1992) and his wife Helen Robson Walton (1919–2007). [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; reef-associated; depth range 18 - 45 m (Ref. 90102). Tropical
Western Pacific: Indonesia.
Size / Weight / Age
Maturity: Lm ? range ? - ? cm
Max length : 4.1 cm SL male/unsexed; (Ref. 75887); 3.9 cm SL (female)
Short description
Identification keys | Morphology | Morphometrics
Dorsal spines (total): 9; Dorsal soft rays (total): 11; Anal spines: 3; Anal soft rays: 9. This species is distinct in having the following characters: pored lateral-line scales 15 + 5; gill rakers 13-14; body depth 3.0-3.4 in SL; dorsal soft rays 3-4, of males prolonged as relatively broad filaments that curve posteriorly when erected during courtship; strongly lunate caudal fin; pelvic fins in males 1.7-1.9 in HL and females 2.3 in HL; color of males overall orange-red with 4 sky-blue stripes on upper two-thirds of side and trio of similar narrow stripes/bands on head; courting males with white dorsal fin, contrasting strongly with adjacent zone of intense red (black when viewed underwater) along upper back; anal fin mainly yellow orange, its margin bright blue; caudal fin with broad blue horizontal streaks, margin pale; pelvic fins yellow orange, bright blue anterior margin (Ref. 75887).
The area of collection (type locality) has a flat, low profile bottom at the base of a gentle (approximately 30°) slope at 34 m depth; substrate consisted of a dense mixture of spindly, branched Seriatopora hystrix coral (Pocilloporidae) and Halimeda alga. Numerous groups of this species were observed, each containing about 1-3 males and up to about 20 females. Courtship activities were common with males continuously 'flashing' a short distance above the bottom (Ref. 75887).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous, distinct pairing during breeding (Ref. 205).
Allen, G.R. and M.V. Erdmann, 2006. Paracheilinus walton, a new species of flasherwrasse (Perciformes: Labridae) from Papua, Indonesia with a key to the species of Paracheilinus. aqua, J. Ichthyol. Aquat. Biol. 12(1):11-18. (Ref. 75887)
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
Preferred temperature (Ref.
123201): 27.9 - 29.2, mean 28.6 °C (based on 18 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00977 (0.00470 - 0.02030), b=3.07 (2.90 - 3.24), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.3 ±0.4 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).
![Image of Paracheilinus walton (Walton\](/images/thumbnails/jpg/tn_Pawal_m0.jpg "Image of Paracheilinus walton (Walton\")
![Image of Paracheilinus walton (Walton\](/images/thumbnails/jpg/tn_Pawal_f0.jpg "Image of Paracheilinus walton (Walton\")
