The presence of steroids in the sera of the Pacific hagfish, Eptatretus stouti, and the sea lamprey, Petromyzon marinus.
D000324:Adrenocorticotropic Hormone / Q000494:pharmacology; D000818:Animals; D002855:Chromatography, Thin Layer; D003345:Corticosterone / Q000031:analogs & derivatives / Q000097:blood; D003350:Cortodoxone / Q000097:blood; D005260:Female; D005399:Fishes / Q000097:blood*; D006196:Hagfishes / Q000097:blood*; D006854:Hydrocortisone / Q000097:blood; D006889:Hydroxycorticosteroids / Q000097:blood*; D006908:Hydroxyprogesterones / Q000097:blood; D007798:Lampreys / Q000097:blood*; D008297:Male; D013739:Testosterone / Q000097:blood*
D006889:Hydroxycorticosteroids; D006908:Hydroxyprogesterones; C021012:17 alpha,20 beta-dihydroxypregn-4-en-3-one; D013739:Testosterone; D000324:Adrenocorticotropic Hormone; C003552:11-dehydrocorticosterone; D003345:Corticosterone; D003350:Cortodoxone; D006854:Hydrocortisone