Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Labridae
Etymology: Paracheilinus: Greek, para = the side of + Greek, chaite = hair + Greek, odous = teeth (Ref. 45335); alfiani: Named for the dive guide Rahmad 'Yann' Alfian, collector of the holotype (Ref. 107895).
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 18 - 22 m (Ref. 107895). Tropical
Western Central Pacific: Indonesia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 4.9 cm SL male/unsexed; (Ref. 107895)
Morphology | Morphometrics
soft rays: 9;
Vertebrae: 25. This species is distinguished by the following characters: pored lateral-line scales 15 + 5-6; gill rakers on 1st branchial arch 13-14; body depth 3.1-3.2 in SL; head length 3.1-3.2 in SL; snout length 3.8-3.9 in HL; eye diameter 4.2-4.4 in HL; interorbital width 4.2-4.4 in HL; least depth of caudal peduncle 2.2-2.4 in HL; caudal-peduncle length 1.8 in HL; dorsal fin of both sexes without elongate filamentous rays; longest dorsal-fin soft ray of TP male 4.3-4.4 in SL; pelvic fin length 1.6-1.8 in HL; caudal fin of both sexes slightly rounded (truncate in preserved specimens); maximum size to at least 49.3 mm SL; color of TP males generally orange on head and anterior body, grading to reddish or purplish posteriorly (except broad, purple-edged, median orange zone); head and body pink ventrally; stripe pattern purple-to-reddish stripes and bands on head and body with 2 primary stripes expanded and diffuse on posterior half of body; dorsal and anal fins mainly burgundy red to purplish with yellow-orange sections anteriorly on dorsal fin and posteriorly, and narrow blue outer margins; caudal fin mainly blue to purple with broad outer margin of yellow; pelvic fins purple to burgundy red; pectoral fins translucent; peak nuptial-display pattern features a large white patch behind pectoral fin, linked dorsally with tapered stripe of neon blue at level of anterior lateral line, continuing to caudal-fin base (Ref. 107895).
Generally found on sloping, low profile bottoms with branching hard and soft corals (predominantly Sarcophyton and Xenia) at about 20 m. Observed to be in large mixed aggregations with P. paineorum and P. flavianalis. Also, a number of suspected hybrids (most likely P. alfiani x P. paineorum), with the colors of this species and the filamentous rays of P. paineorum, were also observed in the area. (Ref. 107895).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Allen, G.R., M.V. Erdmann and N.L.A. Yusmalinda, 2016. Review of the Indo-Pacific Flasherwrasses of the genus Paracheilinus (Perciformes: Labridae), with descriptions of three new species. J. Ocean Sci. Found. 19:18-90. (Ref. 107895)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00469 - 0.02134), b=3.04 (2.87 - 3.21), 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.).
Vulnerability (Ref. 59153
): Low vulnerability (11 of 100) .