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  • Hypoptopoma inexspectatum
  • Hypoptopoma inexspectatum
  • Hypoptopoma inexspectatum
  • Hypoptopoma inexspectatum
  • Hypoptopoma inexspectatum
  • Hypoptopoma inexspectatum
  • Hypoptopoma inexspectatumDorsal view
  • Hypoptopoma inexspectatum
  • Hypoptopoma inexspectatumVentral view
  • Hypoptopoma inexspectatumClose-up of mouth
  • Hypoptopoma inexspectatumClose-up of snout-key identification feature
  • Hypoptopoma inexspectatumClose-up of head
  • Hypoptopoma inexspectatumLateral view
  • Hypoptopoma inexspectatumDorsal view
  • Hypoptopoma inexspectatumClose-up of head, ventral view
Hop to next section All Fishes Data Sheet
Scientific Name Hypoptopoma inexspectatum    (Holmberg, 1893)
Common Name Longfinned Hypoptopoma
Type Locality Río Paraguay, near Formosa city, Formosa Province, Argentina.
Synonym(s) Aristommata inexpectata, Aristommata inexspectata, Hypoptopma inexpectatum, Hypoptopoma guentheri, Hypoptopoma inexpecta, Hypoptopoma inexpectatum, Oxyropsis guentheri, Oxyropsis guntheri, Oxyropsis inexpectatus, Oxyropsis inexspectatus
Pronunciation hi POP toe po mah
Etymology Hypoptopoma is derived from hypos (low position, below). piptein (depressed). poma (cheek) 
Hop to next section Species Information
Size 71mm or 2.8" SL. Find near, nearer or same sized spp.
Identification Hypoptopoma are small(ish) loricariids with a stocky body with a wide, flattened, head with the eyes on the side of the head and a concave profile, with a normal (not extremely thin) tail.

Can be reasonably easily identified by taking a head-on macro-photo of the snout. This will show a very narrow, just a hairs width, band along the edge of the snout. This line on the snout is only found in H. inexspectatum; it is also the only species known from Paraguay.
Hop to next section Habitat Information
Distribution Paraná/Paraguay River basin: Argentina, Bolivia, Brazil and Paraguay.
La Plata, Paraná (click on these areas to find other species found there)
La Plata, Paraná, Paraguay (click on these areas to find other species found there)

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Temperature 18.0-26.0°C or 64.4-78.8°F (Show species within this range)
Hop to next section Husbandry Information
Breeding Unreported.
Breeding Reports There is no breeding report.
Hop to next section Further Information
Reference Revista del Jardin Zoológico de Buenos Ayres v. 1 (no. 3), pp 96.
Registered Keepers There is no registered keeper.
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There are 2 records of this fish being seen, view them all.
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Last Update 2025 Jan 01 12:11 (species record created: 2009 Nov 25 13:22)