(n.) The natural history of fishes; that branch of zoology which relates to fishes, including their structure, classification, and habits.
Example Sentences:
(1) In the course of ichthyological inventory investigations in the main water-course of the Narew River the occurrence of Tracheliastes polycolpus Nordm.
Ichthyophagous
Definition:
(a.) Eating, or subsisting on, fish.
Example Sentences:
(1) cemiculus are two digging species with a malacophagic and, accessorly ichthyophagic diet.