Hardhead snailfish (Lopholiparis flerxi) fish species and information / pictures of Hardhead snailfish - Lopholiparis flerxi

Hardhead snailfish (Lopholiparis flerxi) fish species information

Scientific Name
Lopholiparis flerxi

Common Name
Hardhead snailfish

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 35; Anal soft rays: 28; Vertebrae: 40. This species is characterized by the following; with frontal, sphenotic, and operc1e enlarged and heavily ossified, its body is otherwise soft, naked, and smooth; large pelvic disk, its longitudinal diameter 43.9% head length (HL); low dorsal- and anal-fin ray counts low: D VII, 28; A 28; pectoral-fin rays 29; principal caudal-fin rays 13; the anterior 6 weakly punctate dorsal-fin rays form a small lobe; short gill opening, extending from above pectoral fin to pectoral-fin ray 2; no pseudobranch; teeth strongly trilobed; nostrils single; cephalic lateralis pores 2-6-7-2; no subcutaneous gelatinous layer; body pale yellow in alcohol; no pigments on orobranchial cavity, peritoneum, stomach, intestines, and pyloric caeca (Ref. 57785).

Classification

Classified By
Orr, 2004
Class
Ray-finned fishes (Actinopterygii)
Order
Scorpionfishes and Flatheads (Scorpaeniformes)
Family
Snailfishes (Liparidae)

Distribution

Region
Northeast Pacific
Distribution
Northeast Pacific: Aleutian Islands.
Range
Unknown

Environment

Climate
Temperate
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
285 m
Depth To - meters
285 m
Zone
pelagic-oceanic
Environment
Marine; pelagic-oceanic; depth range 285 - 285 m (Ref. 58018)
Trophic Level
3.13 s.e. 0.44 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
3.3 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 1.0000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses
Unknown
Vulnerability
Low vulnerability (10 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