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); maiandros: Named for Maiandros, the god of the winding Maeander River in Phrygia (currently known as the Büyük Menderes River in Turkey), son of Oceanus and his sister Tethys. The English word 'meander', a winding, crooked, or involved course, is in allusion to the zigzag pattern of
grey to blue lines on the body; a noun in apposition. More on authors: Hoese, Winterbottom & Reader.
Environment: milieu / climate zone / depth range / distribution range
Marine; reef-associated; depth range 1 - 55 m (Ref. 86820). Tropical
Indo-Pacific: Cocos (Keeling) Islands in the Indian Ocean and from Japan, Marshall and Mariana Islands to Samoa and Australia in the Pacific.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 2.7 cm SL male/unsexed; (Ref. 86820)
Morphology | Morphometrics
(total): 6 - 8;
soft rays: 7 - 9;
Vertebrae: 26. This species is characterized by the following: reduced predorsal scales, usually not crossing the midline (midline naked or partly naked); cycloid scales at sides of nape reaching to above a point between posterior margin of operculum and eyes; no scales on cheeks nor opercles; pectoral base usually fully scaled, posterodorsal 2 scales slightly enlarged; prepelvic covered with small cycloid scales in 5-6 rows; interorbital narrow, with moderate groove; groove absent or very shallow behind eyes (shallow between eyes and absent behind eyes in juveniles); a low distinct ridge at posterior end of interorbital; gill opening extending forward to below posterior margin of pupil; nape crest low from first dorsal origin to above posterior opercular margin, reaching to the shallow median groove; groove extending to just behind eyes; pectoral rays unbranched or with 1-5 rays branched at extreme tips; fifth pelvic ray unbranched, rest of rays with 2 terminal tips; D2 usually I,9; A usually I,8; pelvic fins largely separate, connected only at base; fins widely separate, distance between 2 fins greater than base of single pelvic fin; pelvic scale covering membrane, with fifth ray about one-fourth to one-half length of fourth ray; dark brown spot or bar extending posteroventrally from eye, body with irregular brown interconnecting bars, forming zigzag pattern (Ref. 86884).
Occurs in mid to outer barrier reefs, but much more common on outer barrier islands (Ref. 86820). Also found in caves and crevices (Ref. 90102).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Hoese, D.F., R. Winterbottom and S. Reader, 2011. Trimma maiandros, a new species of pygmy goby (Gobiidae) from the Indo-west Pacific. Aqua, Intl. J. Ichthyol. 17(2):103-110. (Ref. 86820)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 24.3 - 28.8, mean 27.5 (based on 344 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00891 (0.00418 - 0.01902), 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. 120179
): High, minimum population doubling time less than 15 months ().
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .