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Scientific Name | Potamoglanis johnsoni (Fowler, 1932) |
Common Name | |
Type Locality | Descalvados, Mato Grosso State, Brazil. |
Synonym(s) | Pygidium johnsoni, Trichomycterus johnsoni |
Etymology | From the Greek potamo (river; the gods of rivers in the Greek mythology) and glanis (catfish). Gender masculine. |
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Size | 16mm or 0.6" SL. Find near, nearer or same sized spp. |
Identification | The genus Potamoglanis is a group of miniaturized Trichomycterinae, diagnosed by the following traits: angle of 35–40° between the main longitudinal axis of the head and the main axis of the autopalatine; thin tubular shape of the second ceratobranchial; presence of six or seven anal-fin rays; eyes dorsally placed on head; opercular and interopercular odontodes patches not juxtaposed; absence of a distal process on the hyomandibula; and presence of a long process on the anterior region of the hyomandibula. Potamoglanis is similar to the Tridentinae genera by the presence of a wide cranial fontanelle; presence of a short ventral process in the opercular bone and by the origin of the dorsal fin placed in a vertical through the anal-fin origin. |
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Distribution | South America: Paraná River basin in Mato Grosso, Brazil and Corrientes, Argentina. La Plata, ParanĂ¡ (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 2020. |
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Furniture | In nature, inhabits roots of aquatic plants. |
Breeding Reports | There is no breeding report. |
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Reference | Proceedings of the Academy of Natural Sciences of Philadelphia v. 84, pp 367, Fig. p. 364. |
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 no record of this fish being seen. |
Forum BBCode | |
![]() | Look up P. johnsoni on PlanetCatfish.com |
![]() | Look up P. johnsoni on Fishbase |
![]() | Look up P. johnsoni on Encyclopedia of Life |
Look up P. johnsoni on Global Biodiversity Information Facility | |
LFS label creator ARN ref:1.26.1312.6829 | |
Last Update | 2025 Jan 01 12:33 (species record created: 2017 Jan 30 20:44) |