All FishesLoricariidaeHypostominaeAphanotorulus  |  | 

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Scientific Name Aphanotorulus phrixosoma   
Common Name
Pronunciation ah FAN oh to RULE uss
Etymology Greek, aphanes = hidden + Latin, torulus, -i = muscle, little string. 
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Identification In Aphanotorulus, all species show clear sexual dimorphism and have a generally flatter appearance than other hypostomine genera. The posterior edge of the oral disc is jagged rather than smooth. Aphanotoroulus can be distinguished from Isorineloricaria by having caudal peduncles that do not become greatly lengthened with size and that are oval in cross section (vs. caudal peduncle proportions that get proportionately longer with size and that become round in cross-section), and by having small dark spots (less than half plate diameter) on a light tan background (vs. spots almost as large as lateral plates on a nearly white background.
Sexing Males in breeding condition posses extremely elongate, bristle-like odontodes. These cover the entire back and sides behind the dorsal fin.
General Remarks Ray & Armbruster (2016, Zootaxa 4072 (5): 501-539) suggest that this species might be a wild hybrid of Aphanotorulus horridus x Aphanotorulus unicolor. Specimens were collected where the other two species are sympatric, and after extensive sampling few individiuals of this species were found.
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IUCN Red List Category
Not Evaluated
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Breeding Reports There is no breeding report.
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Registered Keepers There is no registered keeper.
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Last Update 2019 Aug 03 15:10 (species record created: 2019 Aug 02 14:36)