Inhabits coral reefs and within the reef-rubble slope (Ref. 11441, 57688).

Indian Ocean: Saudi Arabia to western Thailand.

Dorsal spines (total): 7; Dorsal soft rays (total): 10 - 11; Analspines: 1; Analsoft rays: 9 - 10

3.0 cm TL (male/unsexed; (Ref. 11441))

Diagnosis: This species has a frontal ridge behind the orbits that slopes steeply into a wide interorbital trench anteromedially, and into postorbital trenches laterally ; posterior nasal opening adnate to eye; no elongate dorsal spines; second dorsal with 10 or more elements; fifth pectoral ray with two sequential branches (occasionally one dichotomous branch); 18 ormore pectoral rays; no scales on head; body color orange-red with four white bars on dorsum, and light orange blotches on white colored head and nape; dark triangular group of melanophores above opercle (Ref. 57688). Description: Caudal fin rounded; pelvic fins joined by membrane at the base (Ref. 11441).

Type for Gobius townsendi
Collection: Smithsonian Institution, National Museum of Natural History, Department of Vertebrate Zoology, Division of Fishes
Collector(s): C. Eigenmann & R. Eigenmann
Locality: San Diego, Cal., California, United States, Pacific

Depth range based on 8 specimens in 1 taxon.
Water temperature and chemistry ranges based on 7 samples.

Environmental ranges
  Depth range (m): 5.6 - 22.5
  Temperature range (°C): 25.298 - 28.749
  Nitrate (umol/L): 0.122 - 5.376
  Salinity (PPS): 32.279 - 36.013
  Oxygen (ml/l): 4.135 - 4.484
  Phosphate (umol/l): 0.327 - 0.700
  Silicate (umol/l): 4.403 - 5.676

Graphical representation

Depth range (m): 5.6 - 22.5

Temperature range (°C): 25.298 - 28.749

Nitrate (umol/L): 0.122 - 5.376

Salinity (PPS): 32.279 - 36.013

Oxygen (ml/l): 4.135 - 4.484

Phosphate (umol/l): 0.327 - 0.700

Silicate (umol/l): 4.403 - 5.676
 
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.

reef-associated; marine; depth range 5 - 21 m (Ref. 11441)

Not Evaluated