What's the difference between ichthyic and ichthyologic?

Ichthyic

Definition:

• (a.) Like, or pertaining to, fishes.

Example Sentences:

• (1) The biochemical and serological characteristics of nonhemolytic group B streptococci of human, bovine, and ichthyic origin were described.

Ichthyologic

Definition:

• (a.) Alt. of Ichthyological

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.