Prohappia besckei (Dunker in Pfeiffer, 1847)

Salvador, Rodrigo B., Cavallari, Daniel C. & Simone, Luiz R. L., 2017, Taxonomical study on a sample of land and freshwater snails from caves in central Brazil, with description of a new species, Zoosystematics and Evolution 93 (1), pp. 135-141 : 138

Prohappia besckei (Dunker in Pfeiffer, 1847) Fig. 20

Helix besckei Dunker in Pfeiffer 1847: 81; Hidalgo 1870: 37.

Happia (Prohappia) besckei : Morretes 1949: 139.

Happia besckei : Salgado and Coelho 2006: 169.

Prohappia besckei : Simone 2006: 228 (fig. 873); Simone and Salvador 2016: 29 (Figs 98-100, table 1).

Type locality.

Brazil (restricted to Rio de Janeiro by Hidalgo 1870).

Previously known distribution.

Brazil: Minas Gerais, Rio de Janeiro and Santa Catarina states ( Simone 2006; Simone and Salvador 2016). Paraguay ( Morretes 1949; Simone 2006).

New occurrence.

Bahia. Igatu/ Andaraí: Gruta Cantinho. São Desidério: Gruta do Renatão. Goiás. Mambaí: Gruta da Tarimba. Posse: Gruta Revolucionários.

Remarks.

The shell morphology of the present specimens compare very well to Prohappia besckei ; the size of the specimens from Goiás, however, is much smaller (D ~ 2 mm), slightly larger than half the normal size. This could represent a variation of the species in a cave environment, but the sample is too small to be of any significance. The present record extends the species distribution ca. 600 km to the north.