Crossword Clue:

one who studies ichthyology

AnswerCrossword Clue
MYRMECOLOGISTOne who studies ants
CPAOne who studies books
PALEONTOLOGISTOne who studies fossils
OCULISTOne who studies irises
ROENTGENOLOGISTOne who studies X-rays
MICROBIOLOGISTOne who studies minute organisms
YOGIOne who studies asanas and pranayama