Parapercis snyderi  Jordan & Starks, 1905

U-mark sandperch
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Parapercis snyderi   AquaMaps   Data sources: GBIF OBIS
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Parapercis snyderi
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Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Pinguipedidae (Sandperches)
Etymology: Parapercis: Greek, para = the side of + Greek, perke = perch (Ref. 45335).   More on author: Jordan, Starks.

Environment / Climate / Range Ecology

Marine; reef-associated; depth range 10 - 40 m (Ref. 90102).   Subtropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Western Pacific: southern Japan to Queensland, Australia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 11.0 cm TL male/unsexed; (Ref. 42740)

Short description Morphology | Morphometrics

Dorsal spines (total): 5; Dorsal soft rays (total): 20-21; Anal spines: 1-16; Anal soft rays: 18. This species is characterized by the following: D V,20-21 (usually 21); A I,16-18; 13-15 (rarely 13, usually 14) pectoral rays; 38-43 lateral-line scales; about 2-4 + 7-10 gill rakers; about 4 predorsal scales; ctenoid scales on cheek, in 4 horizontal rows; front of lower jaw with 8 canine teeth; vomerine teeth a broad chevron-shaped patch; with palatine teeth; upper edge of subopercle with a prominent sharp spine; serrae on opercular bones absent; body depth 4.15-4.75 in SL (21.20-24.1% SL); middle dorsal spine longest; membrane from last dorsal spine joined near base of first soft ray; body gray to reddish dorsally, white below with the edges of scales gray; a series of f5 broadly U-shaped dark brown bars on back, smaller posteriorly, or with a series of 5 double dark brown to black dashes, the anterior 2 with 1 above and 1 below lateral line; a series of 9 spots or short bars on lower side of body that may be blackish, reddish, or dusky yellow; small dark reddish spots, one per scale, often present scattered along side of body and on cheek; presence at side of snout of an iridescent pale blue line, and one beneath eye; lips with large dark blotches; usually presence of a midventral blackish spot on isthmus, often with a smaller black spot to each side anteriorly; edge of chin below lower lip dusky to blackish; spinous portion of dorsal fin may be entirely black, but usually blackish with large pale yellowish blotches in outer part; soft dorsal fin with rows of black to black-edged orange spots, the base of most rays black or with black upper ends of U-shaped marks extending into base of fin; anal fin base with a row of red spots, a red submarginal line, and a small black spot on penultimate membrane about one-third distance to margin; caudal fin with small blackish, dusky orange, or red spots, often with smaller white spots as well (Ref. 57562).

Biology     Glossary (e.g. epibenthic)

Found in silty sand and rubble areas near reefs at depths of 10-40 m (Ref. 2334, 90102).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Pelagic spawner. A monandric species though some small males may develop directly from juveniles indicicating diandry (Ref. 103751).

Main reference Upload your references | References | Coordinator : Ho, Hsuan-Ching | Collaborators

Randall, J.E., G.R. Allen and R.C. Steene, 1990. Fishes of the Great Barrier Reef and Coral Sea. University of Hawaii Press, Honolulu, Hawaii. 506 p. (Ref. 2334)

IUCN Red List Status (Ref. 115185)

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

FAO(Publication : search) | FisheriesWiki | Sea Around Us

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Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00646 (0.00285 - 0.01461), b=3.09 (2.91 - 3.27), in cm Total Length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic Level (Ref. 69278):  3.4   ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (19 of 100) .