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Scientific Name Sturisoma guentheri  (Regan, 1904)
Common Name
Type Locality Xeberos [Jeberos], upper Amazon River basin, Peru.
Synonym(s) Oxyloricaria guentheri
Etymology German, sturio = sturgeon, + Greek, soma = body. 
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Size 230mm or 9.1" 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.
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Distribution South America: Upper Amazon River basin.
Amazon, Upper Amazon (click on these areas to find other species found there)
Amazon, Upper Amazon, Marañón (click on these areas to find other species found there)

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IUCN Red List Category Least Concern, range map and more is available on the IUCN species page. Last assessed 2014.
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Breeding Reports There is no breeding report.
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Reference Transactions of the Zoological Society of London v. 17 (pt 3, no. 1), pp 299, Pl. 18 (fig. 1).
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Last Update 2024 Mar 15 09:36 (species record created: 2011 Sep 04 12:30)