Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Siluriformes
(Catfish) > Loricariidae
(Armored catfishes) > Loricariinae
Etymology: Ixinandria: Greek, ixine, -es, ixia = varicose veins + Greek, andria, -on = a little man; It could be understood as a man with sordid aspect, derived from Greek, ixos, -ou..
Environment / Climate / Range
Freshwater; demersal. Subtropical
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 11.3 cm SL male/unsexed; (Ref. 86762)
Morphology | Morphometrics
Distinguished from most loricariines by total absence of abdominal plates, including the preanal plate. Members of Hartiella and a few species of Harttia also have the abdomen completely devoid of plates, and can be separated from species of Ixinandria by having 12 branched caudal-fin rays (vs. 10 in Ixinandria) and by the absence of postorbital notch, which is present in members of Ixinandria. Members of Crossoloricaria, Spatuloricaria, and Loricaria sometimes lack a preanal plate, but have small abdominal plates. Some species of Rineloricaria have a naked abdomen, but a preanal plate is always present, except in Rineloricaria setepovos which can be diagnosed from other loricariines by the shapes and number of premaxillary teeth. Ixinandria possesses wide and almost symmetrical tooth cusps, and up to 18 teeth in each premaxilla (vs. premaxilla with up to 13 narrow and clearly asymmetrical teeth in other loricariines, except Rineloricaria aequalicuspis which has up to 15 narrow teeth with nearly symmetrical cusps, and some hartiini, which also have many asymmetrical premaxillary teeth) (Ref. 86762).
South America: Upper río Juramento basin, río Salado drainage in Salta (Argentina), upper río Bermejo in northwestern Argentina and southern Bolivia, and upper río Pilcomayo in southern Bolivia.
This species is found in fast flowing waters between 15 and 65 cm depth, especially in places with filamentous algae, in mountainous areas at altitudes ranging from around 200 to 2900 meters above sea level. During the day, it occurs in fast flowing and highly oxygenated waters, with stony bottom, usually hiding under the stones (Ref. 86762).
Rodriguez, M.S., C.A. Cramer, S.L. Bonatto and R.E. Reis, 2008. Taxonomy of Ixinandria Isbrücker & Nijssen (Loricariidae: Loricariinae) based on morphological and molecular data. Neotrop. Ichthyol. 6(3):367-378.
IUCN Red List Status (Ref. 90363)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
CollaboratorsPicturesStamps, CoinsSoundsCiguateraSpeedSwim. typeGill areaOtolithsBrainsVision
Estimates of some properties based on empirical models
Phylogenetic diversity index (Ref. 82805
= 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), based on all LWR estimates for this BS (Ref. 93245
Trophic Level (Ref. 69278
): 2.5 ±0.2 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .