Teleostei (teleosts) >
Argentiniformes (Marine smelts) >
Microstomatidae (Pencil smelts)
Etymology: Xenophthalmichthys: Greek, xenos = strange + Greek, ophthalmos = eye + Greek, ichthys = fish (Ref. 45335).
More on author: Regan.
Environment: milieu / climate zone / depth range / distribution range
Ecology
Marine; pelagic-oceanic; depth range 0 - 1250 m (Ref. 58018). Tropical
Eastern Atlantic: taken at two off-shore localities. Western Atlantic: 14°N 61°40'W. Western Pacific: Java Trench area - 10°18'S 110°23'E. Probably circumtropical.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 10.0 cm SL male/unsexed; (Ref. 4458)
Short description
Identification keys | Morphology | Morphometrics
Slender fish. Swim bladder not observed (Ref. 37473).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae
Cohen, D.M., 1990. Argentinidae. p. 235-238. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4458)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
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Internet sources
Estimates based on models
Preferred temperature (Ref.
123201): 8.3 - 20.1, mean 13 °C (based on 426 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), in cm total length, based on all LWR estimates for this body shape (Ref.
93245).
Trophic level (Ref.
69278): 3.2 ±0.4 se; based on size and trophs of closest relatives
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).