| epibranchial organ | UBERON_2002116 |  | 
                    
                        | dermal scale focus | UBERON_2002119 |  | 
                    
                        | scale radius | UBERON_2002118 | [Erosion channel that radiates out from the growth center (focus) of the scale across and through the circuli.] | 
                    
                        | Craniata <chordates> | NCBITaxon_89593 |  | 
                    
                        | Branchiostomatidae | NCBITaxon_7736 |  | 
                    
                        | Amphioxiformes | NCBITaxon_2682553 |  | 
                    
                        | Branchiostoma | NCBITaxon_7737 |  | 
                    
                        | Cephalochordata | NCBITaxon_7735 |  | 
                    
                        | Chordata | NCBITaxon_7711 |  | 
                    
                        | orbitosphenoid septum | UBERON_2002120 |  | 
                    
                        | pouch scale | UBERON_2002122 | [Scale that forms part of the posterior border of the caudal-fin organ. Pouch scales are usually hypertrophied.] | 
                    
                        | nuptial tubercle | UBERON_2002124 | [Surface structure that is a small protuberance on the surface of the body. Nuptial tubercles primarily function to facilitate contact between individuals for breeding.] | 
                    
                        | neural arch 5 | UBERON_2002123 |  | 
                    
                        | caudal-fin ray pump | UBERON_2002126 | [Anatomical cluster that consists of thickened caudal-fin rays modified into a pumping mechanism associated with the caudal-fin organ.] | 
                    
                        | caudal-fin organ | UBERON_2002125 | [Organ that consists of a pouch located on the ventral caudal-fin lobe, opening posteriorly, and composed of glandular tissue. The caudal-fin organ presumably functions to secrete pheromones during courtship.] | 
                    
                        | eminentia granularis | UBERON_2002106 | [Anatomical structure that is a subdivision of the cerebellum; it is the location of some lateral line nerve synapses.] | 
                    
                        | electrosensory lateral line lobe | UBERON_2002105 | [Anatomical structure located in the hindbrain that receives primary electroreceptor input.] | 
                    
                        | buccal papilla | UBERON_2002108 | [Papilla that is part of the mouth.] | 
                    
                        | medullary command nucleus | UBERON_2002107 | [Anatomical structure that consists of two neuron types: pacemaker cells and relay cells. The medullary command nucleus commands the timing of the electric organ discharge.] | 
                    
                        | uroneural 2 | UBERON_2002109 |  |