PlanetCatfish.com - Sturisoma rostratum (Loricariidae) Cat-eLog

Ventral view
Close-up of head
Ventral view of head
Close-up of ventral plates
Close-up of pectoral fin
Close-up of caudal fin

Cat-eLog Data Sheet
Scientific Name	**Sturisoma rostratum** (Spix & Agassiz, 1829)
Common Name	Størmaller (Denmark)
Type Locality	Brazilian rivers.
Synonym(s)	Loricaria rostrata
Etymology	German, sturio = sturgeon, + Greek, soma = body.
Species Information
Size	190mm or 7.5" SL. Find near, nearer or same sized spp.
Identification	Sturisoma and Sturisomatichthys can be difficult to tell apart. Older descriptions of the genera emphasized the length of the snout (elongated in Sturisoma), but this trait is not reliable across species. Recent analyses allow discrimination based on the abdominal plates, fin colors and lateral plates: Sturisoma has its central abdominal plates arranged in three clearly-defined longitudinal series; all fins (except sometimes pectoral fins) lack dark spots; and 20–21 lateral plates in median series. Sturisomatichthys has its central abdominal plates less organized, not arranged in clearly-defined longitudinal series; dark spots usually present on one or more of the dorsal-, pectoral-, pelvic, or anal-fins; and 15–18 lateral plates in median series. Furthermore, to date all Sturisoma are cis-Andean; most (but not all) Sturisomatichthys are trans-Andean.
Habitat Information
Distribution	South America. Amazon, Lower Amazon, Tocantins, Lower Tocantins, Araguaia (click on these areas to find other species found there) Amazon, Lower Amazon, Tocantins, Upper Tocantins, Maranhão (Tocantins) (click on these areas to find other species found there) Amazon, Lower Amazon, Tapajós (click on these areas to find other species found there) Amazon, Lower Amazon, Tocantins (click on these areas to find other species found there) Maranhão waters, Pindaré, Mearim (click on these areas to find other species found there) Login to view the map.
IUCN Red List Category	Least Concern , range map and more is available on the IUCN species page. Last assessed 2018.
Husbandry Information
Breeding Reports	There is no breeding report.
Further Information
Reference	Selecta genera et species piscium quos in itinere per Brasiliam, pp 5, Pl. 3 (figs. 1-2).
Registered Keepers	There is no registered keeper.
Wishlists	Love this species? Click the heart to add it to your wish list. There is no wish to keep this species.
Spotters	Spotted this species somewhere? Click the binoculars! There is but a single record of this fish being seen, view it.
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	Look up S. rostratum on Global Biodiversity Information Facility
	LFS label creator ARN ref:1.4.102.3800
Last Update	2025 Jan 01 12:11 (species record created: 2011 Sep 04 12:43)