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 | − | + | − |