Solaropsis brasiliana (Deshayes, 1832)

Fernandes, Maurício Romulo, Alexandre, Guilherme de Lima & Salgueiro, Fabiano, 2025, Shells, teeth and DNA: land snails from an urban forest in Rio de Janeiro, SE Brazil, Journal of Natural History 59 (1 - 4), pp. 129-169 : 156-159

Solaropsis brasiliana (Deshayes, 1832)

( Figures 10 (B), 15)

Records in PNM da Cidade sta. 1, 5 April 2022 [1 sh, MNRJ 23830 ]; sta . 2, 5 April 2022 [1 spm, MNRJ 23832 ]; sta . 3, 19 May 2022 [1 sh, MNRJ 22780 ]; sta . 7, 19 May 2022 [1 spm, MNRJ 22777 ]; sta . 3, 13 August 2022 [1 spm, MNRJ 22885 ]; sta . 15, 5 November 2022 [1 sh, juvenile]; sta. 16, 5 November 2022 [1 sh]; sta. 6, 22 December 2022 [1 spm, juvenile]; sta. 19, 22 December 2022 [1 sh, juvenile]; sta. 21, 22 December 2022 [2 spm, juveniles].

Description of radula (MNRJ 23832)

Formula 25-32-1-32-25; central tooth monocuspid, triangular-lanceolate, with sharp serrated edges, up to 56 µm long; lateral teeth very similar to the central tooth (but slightly narrower), monocuspid, triangular-lanceolate, with sharp serrated edges (mainly in inner lateral teeth; smooth edges in outer lateral teeth), up to 57 µm (L1) or 51 µm (L32) long; marginal teeth bicuspid, smooth edges; inner marginal teeth up 48 µm long (M1), with elongated, lanceolate mesocone, 2.5–2.7x longer than ectocone; outer marginal teeth up 27 µm long (M24), short, triangular mesocone, 1.3–1.4x longer than ectocone.

Remarks

The radula of S. brasiliana was described and illustrated by Cuezzo et al. (2018). The present description agrees well with the former – which, however, did not include the radular formula. We considered the marginal teeth to be those that are bicuspid and slightly smaller than the outer lateral teeth ( Figure 15 (D)), although there is a gradual (not abrupt) transition between them.

Geographic distribution

Brazil: Bahia, Minas Gerais, Espírito Santo and Rio de Janeiro states, including the city of Rio de Janeiro ( Cuezzo et al. 2018).