| Macrotrachela sp.9, whirling specimen; unfortunately this is one of the few images of a whirling specimen. |
| |
 |
| Macrotrachela sp.9, creeping specimen, corona retracted; lateral view. This morphotype is characterzed by a trunk filled completely with yellow-brown pill-like content, so that it looks like a species of the family Habrotrochidae. Also typical is the conspicuously inflated rump (arrowheads) and a a bump on the 1st foot segment (arrow). |
| |
 |
| Macrotrachela sp.9, creeping specimen, corona retracted; lateral view. The arrowheads mark the dorsal and ventral glands with granulated content. |
 |
| Macrotrachela sp.9, creeping specimen, corona retracted; dorsal view. The arrowheads mark the dorsal glands with granulated content (mastax glands?). |
| |
 |
| Macrotrachela sp.9, specimen compressed by coverslide. The arrowheads mark the stomach lumen. |
| |
  |
Macrotrachela sp.9, two aspects of the foot of creeping specimen. Right: dorsal view, focus plane on the spurs.right image: ventral view, showing the 3 toes. |
| |
 |
| Macrotrachela sp.9, ramate trophi with dental formula (DF): 2/2. Rami length (RaL): 26µm |
| |
| |
| |
|
Location (1): Fondotoce, Verbania, Piemont, Italy; pond |
 |
| |
| Habitat (1): periphyton (click to enlarge >>>>) |
| |
| Date (1): coll.: 08.10.2021; img.: 11.10.2021 |
| |
|
|
|
|
|
| |
|
|
