Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Gobiidae
(Gobies) > Gobionellinae
Etymology: Ilypnus: Greek, ilyos, -ou = cave + Greek, hypnos = sleep (Ref. 45335). More on authors: Eigenmann & Eigenmann.
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal. Subtropical; 39°N -
Eastern Pacific: Tomales Bay in northern California, USA to southern Baja California in Mexico, including the Gulf of California.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 6.4 cm TL male/unsexed; (Ref. 2850)
Found in mudflats and shallow bays. Oviparous (Ref. 56079). Males guard the eggs which are found attached to the walls of burrows (Ref. 56079).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Oviparous (Ref. 56079). Males guard the eggs which are found attached to the walls of burrows (Ref. 56079).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
IUCN Red List Status (Ref. 120744)
CITES (Ref. 118484)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 12 - 24.2, mean 19.3 (based on 272 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00325 - 0.02683), b=2.95 (2.71 - 3.19), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.4 se; Based on size and trophs of closest relatives
Resilience (Ref. 120179
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low vulnerability (12 of 100) .