Muscle | Found in larva / Fate in metamorphosis | |
---|---|---|
Phoronopsis harmeri(this paper) | ||
1. Annular muscle of the hood | + but lost in the first minutes | + and then lost |
2. Radial and circular muscles of the hood | + but lost in the first minutes | + and then lost |
3. Hood depressors | +, retained for 15 minutes, and then lost | + (referred to as “hood elevators”) and then lost |
4. Hood elevators | + and then lost | + (are not shown) and then lost |
5. Esophageal musculature | + and then incorporated in the juvenile body | + / ? |
6. Transverse muscles of collar | + and then lost | + and then lost |
7. Collar ring muscle | + but lost in 10 minutes | + and then lost |
8. Tentacle elevators | + and then incorporated in the juvenile body | + and then lost |
9. Tentacle depressors | + and then lost | + and then lost |
10. Trunk body musculature including muscles of the blood vessels | + and then incorporated in the juvenile body | + (dorsal blood vessel of larva referred to as “dorsal retractor”) and then lost |
11. Trunk retractors | + , retained for 15 minutes, and then lost | ___ |
12. Telotroch flexors | + and then lost | + and then lost |
13. Telotroch constrictor | +, retained for 9 days, and then lost | ___ |
14. Metasomal sack musculature | + and then gives rise to the musculature of the juvenile trunk body wall | ? / ? |