1. Ichthyology, the study of fishes.

2. Blathers' Museum Ichthyology Department

3. What does Actinost mean? (ichthyology) A bone at the base of a paired fin (of a fish) (noun)

4. Actinost (plural Actinosts) (ichthyology) A bone at the base of a paired fin (of a fish) 1889, Dr

5. Conodont — the problematical small tooth like fossil of the Cambrian, Silurian and Devonian periods which could well be a tooth of Cyclostomata … Dictionary of ichthyology

6. Most marine Biologists choose a specialty field such as phycology, ichthyology, invertebrate zoology, marine mammalogy, fishery biology, marine biotechnology, marine microbiology, or marine ecology.Specialization in studying a particular species also is common.

7. Examples of in a sentence Piscis), the common name of that class of vertebrate animals which lives exclusively in water, Breathes through gills, and whose limbs take the form of fins (see Ichthyology)