Scientific Name
Rouleina guentheri

Common Name
Bordello slickhead

Biology
Dorsal spines (total): 0; Dorsal soft rays (total): 18-20; Anal spines: 0; Anal soft rays: 16 - 20. Body with wrinkled gelatinous skin covering. Small photopores on body. Closely resembles R. watasei but differs in having a gently curved and long snout. Body color dusky-purple.

Classification

Classified By

Alcock, 1892

Class

Ray-finned fishes (Actinopterygii)

Order

Smelts (Osmeriformes)

Family

Slickheads (Alepocephalidae)

Distribution

Region

Indo-Pacific

Distribution

Indo-Pacific: including the East China Sea.

Range

25°N - 36°S, 1°W - 177°W

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

500 m

Depth To - meters

1300 m

Zone

bathyalpelagic

Environment

Marine; bathypelagic; depth range 500 - 1300 m (Ref. 559)

Trophic Level

3.31 s.e. 0.43 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

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

23.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5010 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Moderate vulnerability (41 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated