Table 3 Differences among the species of the genus Gephyroherpia Salvini-Plawen 1978
From: Three new species of Pruvotinidae (Mollusca: Solenogastres) from Antarctica and NW Spain
| Gephyroherpia | antarctica | (?) triangulata | impar n. sp. |
|---|---|---|---|
| Distribution |
Antarctica Ross Sea, 342–714 m Davis Sea, 385 m |
Irish Sea 78 m |
NW Spain 598–610 m |
| Length (mm) | 4 | 2.4 | 7 |
| Middorsal keel | − | + | + |
| Epidermal papillae | + | − | + |
| Posterior atrium | Bilobed | Trilobed | Trilobed |
| Radula teeth | |||
| Distal hook | + | − | + |
| Medial denticles | 6–7 | − | − |
| Radular sheath | Unpaired | Paired/unpaired | Unpaired |
| Ducts of the ventrolateral foregut glandular organs | Short | Long | Long |
| Oesophagus | Short | Long | Long |
| Oesophageal glands | − | − | + |
| Anterodorsal midgut caecum | Paired/unpaired | Paired/unpaired | Unpaired |
| Midgut constrictions | + | + | − |
| Abdominal spicules | + | − | − |
| Suprapallial glands | + | ? | − |
| Respiratory folds | 10 | − | 15 |
| Pedal fold reaches pallial cavity | − | + | − |