| Name: | posterior lateral line primordium |
|---|---|
| Synonyms: | posterior lateral line primordia |
| Definition: | A migrating group of cells originating from the posterior lateral line placode. The primordium deposits seven to nine neuromasts and interneuromasts between them during its posterior migration to the tail. |
| Ontology: | Anatomy Ontology [ZFA:0001157] |
| Name: | lacks parts or has fewer parts of type |
|---|---|
| Synonyms: | loss of |
| Definition: | The bearer of this quality has_part < n of the indicated entity type, where n is the normal amount for a comparable organism. Note that the bearer of the quality is the whole, not the part. Formally: If a bearer entity e has fewer parts of type X at time t, then the number of instances x of X at t such that x part_of e is < n, where n is either the normal number for comparable entities, or n is stated explicitly. This case includes the limit case, where the bearer lacks all parts of the specified type. |
| Ontology: | Phenotypic Quality Ontology [PATO:0001999] |
| Name: | protoneuromast |
|---|---|
| Synonyms: | immature neuromast, proto neuromast, proto-neuromast |
| Definition: | A group of about 20 cells deposited by the migrating lateral line primordium. A few hours after deposition these cells mature to form the neuromast. |
| Ontology: | Anatomy Ontology [ZFA:0005227] |