Classification / Names
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Blenniiformes (Blennies) >
Dactyloscopidae (Sand stargazers)
Etymology: Myxodagnus: Greek, myxos = mucus + Greek, agnos = pure (Ref. 45335); walkeri: Named after Boyd W. Walker in recognition of his fieldwork which produced much of the present material and many other eastern Pacific dactyloscopids (Ref. 39697).
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino demersale; distribuzione batimetrica 0 - 6 m (Ref. 39697). Tropical
Distribuzione
Stati | Aree FAO | Ecosystems | Presenze | Point map | Introduzioni | Faunafri
Eastern Central Pacific: Nayarit, Mexico and Golfo de Nicoya, Costa Rica.
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL maschio/sesso non determinato; (Ref. 39697)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 8 - 10; Raggi dorsali molli (totale) : 28 - 31; Raggi anali molli: 33 - 38. Preorbital length longer than diameter of pigmented eye; upper lip fimbriae usually 10-11; modally 2 pores in 1st preopercular canal; dorsum of head mainly speckled with small brown spots, without large blotches or spots; without a distinct suborbital bar or prominent blotches on lower jaw (Ref. 39697).
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Dawson, C.E., 1976. Studies on eastern Pacific sand stargazers 3. Dactylagnus and Myxodagnus, with description of a new species and subspecies. Copeia 1976(1):13-43. (Ref. 39697)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Strumenti
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5312 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00244 - 0.04107), b=3.04 (2.81 - 3.27), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 4.3 ±0.6 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).