Scientific Name
Trimma caesiura

Common Name
Caesiura dwarfgoby

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 7-8; Anal spines: 1; Anal soft rays: 8 - 9. Diagnosis: frontal ridge behind the orbits slopes steeply into a wide interorbital trench anteromedially, and into postorbital trenches laterally; posterior nasal opening separate from anterior margin of eye; elongate first dorsal spines absent; fifth pelvic fin ray branched once dichotomously; body red-orange with four white dorsolateral spots between caudal region and origin of second dorsal; no white ventrolateral spots; facial pattern with two thin, diffuse white diagonal lines under orbit and one over preopercle (Ref. 57688).

Classification

Classified By

Jordan & Seale, 1906

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gobies (Gobiidae)

Distribution

Region

Western Pacific

Distribution

Western Pacific: Chesterfield Banks and New Caledonia to Samoa. Reported from the Ryukyu Islands (Ref. 559). Resembles Trimma naudei and Trimma okinawae (Ref. 1602).

Range

14°N - 15°S

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

3 m

Depth To - meters

25 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 3 - 25 m (Ref. 57688)

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

3.5 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 (11 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