Microcystina minima ( Adams, 1867 )

Muratov, Igor V., 2010, Terrestrial molluscs of Cabo Delgado and adjacent inland areas of north-eastern Mozambique, African Invertebrates 51 (2), pp. 255-255 : 277-278

publication ID

https://doi.org/ 10.5733/afin.051.0203

DOI

https://doi.org/10.5281/zenodo.7914579

persistent identifier

https://treatment.plazi.org/id/03C62100-D277-BA37-4D81-407EFC4AFDCD

treatment provided by

Felipe

scientific name

Microcystina minima ( Adams, 1867 )
status

 

Microcystina minima ( Adams, 1867) View in CoL

Fig. 46 View Figs 46–52

Macrochlamys minima: Adams 1867: 303 View in CoL , pl. 19, fig. 2 (near Port Louis, Mauritius; c. 1.3× 0.5 mm).

A single shell was found on Cabo Delgado.Previously known only from the Mascarene Islands where it is quite common and recently recorded from Zanzibar (Rowson et al. in press). The smallest species in the study area. Can be easily distinguished from the following species by the lack of spiral sculpture.

The shell was originally described “... depressa, discoidea ... Diam. 1⅓, alt. ½ mill.” and the apex is not visible on the original illustration. The measurements in the original description were clearly approximate. Griffiths and Florens (2006: 130, pl. 27, fig. E) illustrated M. minima with a protruding apex and gave “Diameter: 1.3 mm; height 0.5 mm ” for the size of the shell. However, if calculated from the proportions of that illustration, assuming that diameter is 1.3 mm, the height of the shell would be 0.82 mm. Thus, in view of the fact that there are no other shells with a narrow umbilicus, without any spiral sculpture and 1.3 mm in diameter found so far on Mauritius, it would be safe to assume that M. minima has variably protruding apical whorls.

Kingdom

Animalia

Phylum

Mollusca

Class

Gastropoda

Order

Stylommatophora

Family

Ariophantidae

Genus

Microcystina

Loc

Microcystina minima ( Adams, 1867 )

Muratov, Igor V. 2010
2010
Loc

Macrochlamys minima: Adams 1867: 303

ADAMS, H. 1867: 303
1867
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