Scientific Name
Grammonus diagrammus

Common Name
Purple brotula

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 95-115; Anal spines: 0; Anal soft rays: 75 - 91; Vertebrae: 60 - 63. Branchiostegal rays: 8 (Ref. 36488).

Classification

Classified By

Heller & Snodgrass, 1903

Class

Ray-finned fishes (Actinopterygii)

Order

Cusk eels (Ophidiiformes)

Family

Viviparous brotulas (Bythitidae)

Distribution

Region

Eastern Pacific

Distribution

Eastern Pacific: San Clemente Island in south California, USA to Panama and the Galapagos Islands.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

6 m

Depth To - meters

18 m

Zone

reef-associated

Environment

Marine; reef-associated; depth range 6 - 18 m (Ref. 36488)

Trophic Level

3.5 s.e. 0.50 Based on food items.

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

20.3 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5005 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Low to moderate vulnerability (27 of 100)

Resilience

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

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)