From: Inferring muscular ground patterns in Bivalvia: Myogenesis in the scallop Nodipecten nodosus
 | Nodipecten nodosus | Pecten maximus | Lyrodus pedicellatus |
---|---|---|---|
Velum retractors | Dorsal velum retractor | Velum retractor 1 | Dorsal velum retractor |
Medio-dorsal velum retractor | Velum retractor 2 | Ventral velum retractor | |
Medio-ventral velum retractor | Velum retractor 3 | - | |
Ventral velum retractor | Velum retractor 4 | - | |
Ventral larval retractors | Posterior ventral larval retractor | Posterior retractor 1 | Ventral larval retractor |
Anterior ventral larval retractor | Posterior retractor 2 | - | |
- | Posterior retractor 3 | - |