Happia sp.

de Lima, Marcos Silva, Silva, Fernanda dos Santos, Simone, Luiz Ricardo Lopes, Salvador, Rodrigo Brincalepe & Guilherme, Edson, 2021, Terrestrial gastropods of Reserva Florestal Humaitá, southwestern Brazilian Amazon, Check List 17 (1), pp. 269-281 : 275

Happia sp.

Figure 4L–N

Material examined. Brazil • Acre, Porto Acre , HFR; 09°45′32″S, 067°39′05″W; 30.VIII.2018; M. Lima and W. Lima leg.; 1, MZSP 150055 (ex UFAC 946 ) • same locality; 09°45′09″S, 067°40′22″W; 14.XII. 2018; L. Freitas leg.; 1, MZSP 150056 (ex UFAC 1033 ) .

Identification. The present specimens present a set of conchological characters not seen, to our knowledge, in any other Brazilian or Peruvian Happia spp. , namely: whorls growing rapidly in size and coiled closely packed together; a tall round body whorl; a large elliptical aperture, positioned diagonally in relation to the columellar axis of shell. A few species ( Simone 2006) present each of those characters at a time, but not all at once. Given that conchological characters are typically insuffi- cient for classification of Happia and related genera, we prefer to leave the identification of the present specimens open until molecular-grade material is available and the genus is revised.