Dyakia sannio (Pfeiffer, 1854)
Morphology:
Pfeiffer (1854) original descriptions on Helix sannio – “H. testa sinistrorsa, angustissime umbilicata, turbinato-depressa, solida, oblique costulato-striata, vix nitidula, superne pallide flavicante; spira conoidea, obtusula; anfract. 6½, vix convexiusculis, lente accrescentibus, ultimo non descendente, antice rugato, peripheria carinato, subtus convexo, cinnamomeo; apertura diagonali, lunari, intus alba, nitida; perist. incrassato, breviter reflexo, marginibus distantibus, basali substricto, superne sinuato, in laminam triangularem refiexo.”
Size:
Helix sannio – “Diam. maj. 38, min. 32½, alt. 21 mill.” (Pfeiffer, 1854)
Distribution:
Type locality – “__?” (Pfeiffer, 1854)