Threadless cheek-hook goby (Ancistrogobius yoshigoui) fish species and information / pictures of Threadless cheek-hook goby - Ancistrogobius yoshigoui

Threadless cheek-hook goby (Ancistrogobius yoshigoui) fish species information

Scientific Name
Ancistrogobius yoshigoui

Common Name
Threadless cheek-hook goby

Biology
Dorsal spines (total): 7; Dorsal soft rays (total): 9-10; Anal spines: 1; Anal soft rays: 9. This species is unique from its congeners by having the following characters: lacks a filamentous spine on the first dorsal fin (the third spine subequal in length to preceding spine); 19-20, typically 20 pectoral-fin rays; head and most of nape no scales, predorsal scales absent; pelvic fins fused medially with well developed connecting membrane and frenum; fifth segmented ray of pelvic fin 91.8-94.9% of preceding ray in length; below the eye faint, dusky blotches (not forming vertical bar); distal tip of first dorsal fin with a black blotch, wide, extending posteriorly to middle or more posterior part of third interspinal membrane; sensory papilla rows x^1 and x^2 not continuous, interrupted by row trp; sensory papilla rows trp extending dorsally to slightly above a longitudinal line through rows x^1 + x^2; anterior tip of sensory papilla row b extending or not to row 4 and w

Classification

Classified By
Shibukawa, Yoshino & Allen, 2010
Class
Ray-finned fishes (Actinopterygii)
Order
Perch-like fish (Perciformes)
Family
Gobies (Gobiidae)

Distribution

Region
Western Pacific
Distribution
Western Pacific: Japan, Philippines, Indonesia and Papua New Guinea.
Range
Unknown

Environment

Climate
Subtropical
Water Temperature From
Unknown °C
Water Temperature To
Unknown °C
Depth From - meters
5 m
Depth To - meters
30 m
Zone
benthopelagic
Environment
Marine; benthopelagic; depth range 5 - 30 m (Ref. 84001)
Trophic Level
s.e. 0.00 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
4.1 cm
Common Length
Unknown cm
Phylogenetic Diversity Index
PD50 = 0.5625 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
Unknown
Threat To Humans
  Harmless
IUCN Red List Status
  Not Evaluated