Naked shellear (Cromeria nilotica) fish species and information / pictures of Naked shellear - Cromeria nilotica

Naked shellear (Cromeria nilotica) fish species information

Scientific Name
Cromeria nilotica

Common Name
Naked shellear

Biology
Anal soft rays: 9 - 10; Vertebrae: 42 - 45. Preorbital stripe absent (Ref. 57474). Pelvic fin origin well in front of anterior base of dorsal fin (Ref. 57474). Caudal peduncle depth 10.1-12.9% of SL (Ref. 57474). Body depth 6.5-8.4 x SL. Head 4.5-5.7 x SL. Round prominent snout. Cutaneous fold below and above almost half of caudal peduncle. Gas bladder connected to esophagus. Well developed brain with most of the dermic bony skeletal pieces regressed. Whitish body, yellowish back with small brown spots.

Classification

Classified By

Boulenger, 1901

Class

Ray-finned fishes (Actinopterygii)

Order

Milkfish (Gonorynchiformes)

Family

Shellears (Kneriidae)

Distribution

Region

Africa

Distribution

Africa: Upper White Nile basin in Sudan (Ref. 57474).

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

Trophic Level

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

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

2.9 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries:

Vulnerability

Low vulnerability (10 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Least Concern (LC)