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Nathan Lujan (3)

Given the L-numbers of Squaliforma sp. L290 and L291 (being the juvenile form) in the German Datz publication of March 2001. Was originally described as Hypostomus horridus by Rudolf Kner in 1854, although it was transferred to the genus Squaliforma (now considered invalid) after the genus' designation by I. J. H. Isbrücker, I. Seidel, J. Michels, E. Schraml, and A. Werner in 2001. In 2004, Jonathan W. Armbruster classified the species within Hypostomus instead of Squaliforma. In 2016, following a review of Isorineloricaria and Aphanotorulus by C. Keith Ray and Armbruster (both of Auburn University), the species was reclassified as a member of Aphanotorulus, although FishBase still lists the species as Squaliforma horrida. This 2016 review also found three other former Squaliforma species (S. biseriata, S. scopularia, and S. virescens) to be synonymous with A. horridus. Description: Mouth with papillae and upper lips have protrusions. Sexual Differences: Similar to the Hypostomus genera but with the males having bristles on the odontodes mainly on the posterier of the body during spawning time. Aquarium Care: Relatively easy to keep with higher temperatures and a fine sand substrate. Diet: Not fussy and will eat most prepared aquarium foods such as tablet, frozen and live foods.

L290, L291, Long Head Pleco

Hypostomus horridus, Squaliforma horrida

Loricariidae

South America: Amazon River basin (Bolivia, Brazil, Colombia and Peru). Type locality: Forte do Principe, Rio Guaporé, Brazil.

35.0cm. (14ins)

25-29°c (77-85°f.)

6.5-7.5.

All L-Numbers Datz Special. www.datze.de 
Isbrucker, I., Seidel, I., Michels, J., Schraml, E., & Werner, A. (2001). Diagnose vierzehn neuer Gattungen der Familie Loricariidae Rafinesque, 1815 (Teleostei, Ostariophysi).
Ray, C. K., & Armbruster, J. W. (2016). The genera Isorineloricaria and Aphanotorulus (Siluriformes: Loricariidae) with description of a new species. Zootaxa, 4072(5), 501–539.