Scientific Name
Coryphopterus dicrus

Common Name
Colon goby

Biology
Dorsal spines (total): 6; Dorsal soft rays (total): 9-10; Anal spines: 1; Anal soft rays: 10; Vertebrae: 26. Pelvic frenum absent. Innermost pelvic-fin rays branched, connected to the ray of the opposite side by a basal membrane and smaller than immediately adjacent one (66 - 77% of its length). Elongate spine in the first dorsal fin absent. No spot above opercle (Ref. 52312). Two distinct dark spots, one above other, on pectoral fin base (Ref. 26938). With numerous small brown spots, the largest a series of 6 along lower side, and small pale blue-green flecks; horizontal dark lines on head, the most prominent posterior to eye; a vertical blackish line or two blackish spots at base of caudal fin (Ref. 13442).

Classification

Classified By

B?hlke & Robins, 1960

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Gobies (Gobiidae)

Distribution

Region

Western Atlantic

Distribution

Western Atlantic: southern Florida in USA and Bahamas to southeastern Brazil (Ref. 51894).

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

3 m

Depth To - meters

20 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 3 - 20 m (Ref. 9710)

Trophic Level

2.69 s.e. 0.31 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

True

Physical Size and Genetics

Maximum Length

5.0 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

Aquarium: commercial

Vulnerability

Low vulnerability (12 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