Scientific Name
Trimma annosum

Common Name
Greybearded pygmy goby

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 7-8; Anal spines: 1; Anal soft rays: 7 - 9. A species of Trimma with predorsal scales, a moderate interorbital trench (posto2rbital trench absent or poorly developed), second and third dorsal spines not elongate, a fifth pelvic fin ray which is branched dichotomously once and is 40-65% the length of the fourth (fifth pelvic fin ray is 49832). Bluish grey with 3 or 4 rows of large yellow blotches on the head and body, with the uppermost row of blotches on each side of the dorsal fin joining medially to form saddles over the dorsum (Ref. 49832).

Classification

Classified By

Winterbottom, 2003

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gobies (Gobiidae)

Distribution

Region

Indo-West Pacific

Distribution

Indo-West Pacific: Maldives and India to Papua New Guinea.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

14 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 0 - 14 m (Ref. 49832)

Trophic Level

3 s.e. 0.00 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

True

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

2.3 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low vulnerability (10 of 100)

Resilience

High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated