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Trimma quadrimaculatum  Hoese, Bogorodsky & Mal, 2015

Four-spotted pygmygoby
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Trimma quadrimaculatum
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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) > Gobiidae (Gobies) > Gobiinae
Etymology: Trimma: Greek, trimma, -atos = something crushed (Ref. 45335);  quadrimaculatum: Name from Latin 'quadrus' meaning four fold and 'maculatus' for spotted; referring to the four prominent subcutaneous spots above anal fin and ventral caudal peduncle.

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

Marine; reef-associated; depth range 10 - 16 m (Ref. 104898).   Tropical

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

Western Indian Ocean: Red Sea, Saudi Arabia.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 1.6 cm SL male/unsexed; (Ref. 104898); 1.7 cm SL (female)

Short description Morphology | Morphometrics

Dorsal spines (total): 7; Dorsal soft rays (total): 8; Anal spines: 1; Anal soft rays: 7; Vertebrae: 27. This species is distinguished by the following characters: D VI + I,8; A I,7; pectoral-fin rays 15-17, with most rays unbranched; scale series - longitudinal 23-25; transverse counted forward 7; median predorsal scales 6-8 (usually 7 or 8), the scales reaching to just behind eye; eyes are slightly elevated resulting in a shallow pit in interorbital area and a shallow groove along dorsoposterior margin of eye; the pectoral-fin base is covered with 2 large cycloid scales (and 1 or 2 smaller scales); prepelvic area covered with about 3-6 rows of cycloid scales; reduced transverse pattern of sensory papilla rows on cheek; nape with 1-2 modified elongate papillae behind each eye; connected pelvic fins form a plate, no interspinal membrane, the fifth ray with 2 dichotomous branches; head and body with broad, irregular, brown bars, the last bar posteriorly on caudal peduncle extending basally onto rays of caudal fin; head with 3 dark brown bars below eye; the basal quarter of second and third membranes of first dorsal fin with diffuse dark blotch; 2 subcutaneous dark brown spots along the anal-fin base, 2 similar spots ventrally on caudal peduncle behind rear base of anal fin (Ref. 104898).

Biology     Glossary (e.g. epibenthic)

Usually found in small groups in small caves in the reef wall of fringing reefs in seaward reefs and bays (Ref. 104898).

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

Main reference Upload your references | References | Coordinator | Collaborators

Hoese, D.F., S.V. Bogorodsky and A.O. Mal, 2015. Description of a new species of Trimma (Perciformes: Gobiidae) from the Red Sea, with a discussion of the generic separation of Trimma and Priolepis, with discussion of sensory papillae terminology. Zootaxa 4027(4):538-550. (Ref. 104898)

IUCN Red List Status (Ref. 119314)


CITES (Ref. 115941)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

FAO(Publication : search) | FishSource |

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Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

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=0.00891 (0.00427 - 0.01860), b=3.08 (2.91 - 3.25), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).
Resilience (Ref. 69278):  High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153):  Low vulnerability (10 of 100) .