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Dave Rinaldo (1)

Description: Entomocorus radiosus is diagnosed by the unique combination of a long anal-fin base, 18–22 branched anal-fin rays, unpigmented pectoral and pelvic fins, and caudal fin hyaline, with distal half of dorsal and ventral lobes pigmented with black. Specimens were collected from a creek and in wide open environments, as river channels and bays of the upper Rio Paraguay basin in the periodically flooded areas known as the Pantanal. Known to be a zooplanktivore which also eats insects. Stomach contents predominantly has microcrustaceans (cladocerans, copepods and ostracods); insects (ephemeropterans, coleopterans and hemipterans); and/or small amounts of water mites, rotifers, fish scales, bryozoans, unidentified eggs, detritus, and sand. Reproduction: This species spawns in July and August in the period of maximal annual flooding. Sexual Differences: The males have elongated ventral fins and the dorsal becomes long and curved. Aquarium Care: Inactive during the day so would need feeding at night but as aquarists know this family will find food that has been left during daytime feedings. Diet: Not a fussy eater. Mosquito larvae, artemia, flakefood, tablet and pellet foods. Etymology: The genus name Entomocorus: Greek; entome, meaning notch, and kore, meaning pupil; in reference to the deep groove at the lower margin of the eye in which the maxillary barbels fit into. The specific name radiosus: from the Latin word 'radiosus' meaning rod, fin-ray; and '-osus', having the nature or quality of something, usually in fullness or abundance, in allusion to the many anal-fin rays; an adjective.

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None

Auchenipteridae

South America: Rio Paraguay.

5.5cm (2¼ins)

25-29°c (77-85°f.)

6.0-7.5.

Ferraris, C.J. Jr., 2007. Checklist of catfishes, recent and fossil (Osteichthyes: Siluriformes), and catalogue of siluriform primary types. Zootaxa 1418:1-628.
Froese, R. and D. Pauly. Editors. 2019. FishBase. World Wide Web electronic publication. www.fishbase.org, ( 08/2019 ).
Reis, R.E. and T.A.K. Borges, 2006. The South American catfish genus Entomocorus (Ostariophysi: Siluriformes: Auchenipteridae), with the description of a new species from the Paraguay River Basin. Copeia 2006(3):412-422.