Ichthyology is the branch of zoology devoted to the study of fish, including: bony fish, Osteichthyes; cartilaginous fish, Chondrichthyes; and jawless fish, Agnatha. The discipline can include the ...

He moved in early 2000 to the Academy of Natural Sciences in Philadelphia (ANSP) as Chaplin Chair and Curator of Ichthyology. He holds an adjunct faculty appointment at the University of Pennsylvania ...