Activity of the pituitary and the thyroid gland in the viviparous cyprinodont Xiphophorus helleri Heckel during the development of the ventral part of the tail fin.
D003532:Cyprinodontiformes; D005399:Fishes; D010900:Pituitary Diseases; D010902:Pituitary Gland / Q000502:physiology*; D013960:Thyroid Function Tests; D013961:Thyroid Gland / Q000502:physiology*; D014781:Viscera
FISH; PITUITARY GLAND/physiology; THYROID GLAND/physiology