title: Unusual choroid pigment distribution in the retina of a South American frog.
mesh_terms: D000818:Animals; D001001:Anura / Q000033:anatomy & histology*; D002452:Cell Count; D002829:Choroid / Q000033:anatomy & histology*; D009474:Neurons; D009900:Optic Nerve / Q000033:anatomy & histology; D010858:Pigmentation; D012160:Retina / Q000166:cytology