Table 3 Volumes of cerebral structures in E. rowelli relative to total brain volume (TBV) based on SRμCT (entire head scan), and light (LM; serial sections of entire head) and confocal microscopy (CLSM; whole-mount preparations of brains)
From: The velvet worm brain unveils homologies and evolutionary novelties across panarthropods
| Structure | Relative volume1 (%) | |||
|---|---|---|---|---|
|
Ruthenium Red (SRμCT) |
Azan (LM) |
Synapsin (CLSM) |
Acetylated α-tubulin (CLSM) | |
| Brain (total) | 100.00 | 100.00 | 100.00 | 100.00 |
| Cell body rind | 55.52 | 52.51 | 59.11 | 59.47 |
| Brain neuropils | 44.48 | 47.49 | 40.89 | 40.53 |
| Brain commissures 1–3 | – | – | – | 0.60 |
| Central body | – | 3.02 | 2.447 | 2.50 |
| Frontal body | – | – | 3.277 | 4.13 |
| Microglomeruli | – | – | 0.027 | 0.01 |
| Mushroom bodies | – | 5.26 | 2.592 | 4.23 |
| Olfactory glomeruli | – | – | 0.567 | 0.51 |
| Olfactory fascicles | – | – | 1.187 | – |
| Optic neuropils | – | 0.18 | 0.187 | 0.22 |
| Ponticulus | – | 0.11 | – | 0.09 |
| Other brain neuropils | – | 35.83 | 30.64 | 28.24 |