si·lu·rid 
(sĭ-lrĭd, sī-)
(sĭ-lrĭd, sī-)adj.
n.
Any of various freshwater catfishes of the family Siluridae of Eurasia, typically having a long anal fin.
[From New Latin Silūridae, family name, from Latin silūrus, a large freshwater fish, from Greek silouros, sheatfish; see ors- in the Appendix of Indo-European roots.]
si·lurid adj.