| Name: | horizontal myoseptum | 
|---|---|
| Synonyms: | horizontal septum | 
| Definition: | A connective tissue partition developing at the apex of the chevron-shaped myotome and separating dorsal (epaxial) and ventral (hypaxial) body wall muscle masses. | 
| Ontology: | Anatomy Ontology [ZFA:0000671] | 
| Name: | melanocyte | 
|---|---|
| Synonyms: | melanophore | 
| Definition: | A pigment cell derived from the neural crest. Contains melanin-filled pigment granules, which gives a brown to black appearance. | 
| Ontology: | Anatomy Ontology [ZFA:0009091] |