
Lamprey parasitism of sharks and teleosts: high capacity urea excretion in an extant vertebrate relic. Comparative Biochemistry and Physiology – Part A, Molecular & Integrative Physiology, 138(4), 485–492
DOI: 10.1016/j.cbpb.2004.06.001

Neuropeptide Y-related Peptides from the pancreas of a teleostean (eel), holostean (bowfin) and elasmobranch (skate) fish. Peptides, 12(2), 221–226
DOI: 10.1016/0196-9781(91)90003-8