Opeas hannense ( Rang, 1831 )

Muratov, Igor V., 2010, Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique, African Invertebrates 51 (2), pp. 255-255 : 270

publication ID	https://doi.org/10.5733/afin.051.0203
DOI	https://doi.org/10.5281/zenodo.7913639
persistent identifier	https://treatment.plazi.org/id/03B7D926-AD2E-FFB1-E8A3-FD9AFC77FEF8
treatment provided by	Felipe (2023-05-08 20:45:12, last updated by Plazi 2023-11-09 03:09:10)
scientific name	Opeas hannense ( Rang, 1831 )
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Opeas hannense ( Rang, 1831) View in CoL

Fig. 28 View Figs 26–29 Helix (Cochlicelle) hannensis: Rang 1831:41 , pl.3, fig.8 ( Cape Verde peninsula,WestAfrica;4–5 × 1.5–2 mm).

One of the most common and widespread (mostly through introduction) tropical species; found at one station inland. This is apparently the first record of this species from eastern Africa. The illustrated shell is almost the same in size and proportions as Opeas araeum Connolly, 1923: 652 , pl. 19, fig. 35 (type: 5.3× 1.8 mm from Kenya), which is possibly a synonym of hannense . Can be easily separated from the two other small subulinids in the area by the narrow but decisively open umbilicus.

References

RANG, S. 1831. Annales des sciences naturelles comprenant la physiologie animale et vegetale, l'anatomie comparee des deux regnes, la zoologie, la botanique, la mineralogie et la geologie. Paris: Crochard.

Figures

Figs 26–29.Subulinidae:(26)Curvellanyasana,10.6×5.7mm,stn1;(27) Euonymatugelensis,7.2×2.6mm,subadult,stn1;(28) Opeashannense,5.4×1.8 mm,stn1;(29)Allopeas? cf.acmella, 4.0×1.2 mm,stn 7.