Beautiful pygmygoby (Trimma kalum), first described by Winterbottom, 2020 is a tiny fish in the family Gobiidae (order Gobiiformes). Adults typically reach 1.70 cm in maximum length. It inhabits marine coastal and open-ocean environments. Recorded depth range: 40 to 73 metres. It occurs in Tropical waters. On the IUCN Red List, it is classified as Data Deficient.The species is kept in the aquarium hobby. Care requirements and behaviour align broadly with other Gobiidae kept in the hobby.
Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Anal spines: 1; Anal soft rays: 9 - 10. This species is distinguished by the following set of characters: no scales on cheeks, opercle and nape; second spine of the first dorsal fin elongated, reaching posteriorly to the base of the 2nd-10th ray of the second dorsal fin when adpressed; pectoral-fin rays 17-18 with 12-13 branched rays in the middle of the fin; a single dichotomous branch point in the 5th pelvic-fin ray, its length 51-75% the length of the 4th ray; total gill rakers 17-18; beneath the eye 5 papillae in row c; midline between the base of the first dorsal spine and the posterior interorbital region is a very well developed dermal crest; a U-shaped interorbital trench with no fleshy median ridge; a poorly developed postorbital trench ending between the 4th to 5th papillae in row p (which has 6 papillae in total). Colouration when alive and freshly collected is very similar in appearance to T. sheppardi, body overall yellow with three yellow bars across the cheek, and a double dark spot above the posterior portion of the opercle .Cross section: oval.
Behavioural data for Beautiful pygmygoby is currently being reviewed.
Marine; reef-associated; depth range 40 - 73 m . Tropical
The following diseases are known to affect Beautiful pygmygoby.
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