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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..

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; reef-associated; depth range 18 - 45 m (Ref. 90102). Tropical

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Western Pacific: Indonesia.

Size / Weight / Age

Maturity: L_m ? 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 Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Oviparous, distinct pairing during breeding (Ref. 205).

Main reference Upload your references | References | Coordinator : Westneat, Mark | Collaborators

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)

Least Concern (LC) ; Date assessed: 25 March 2009

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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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): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00955 (0.00456 - 0.02002), b=3.06 (2.89 - 3.23), 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).

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Paracheilinus walton Allen & Erdmann, 2006