A new species of Megaspira (Stylommatophora: Megaspiridae) from Ilha Grande, Southeast Brazil Author Daniel, Victor R. Departamento de Zoologia, Laboratório de Malacologia Límnica e Terrestre, Instituto de Biologia Roberto Author Ovando, Ximena M. C. Departamento de Zoologia, Museu de Malacologia Prof. Maury Pinto de Oliveira, Instituto de Ciências, Author Santos, Sonia B. Departamento de Zoologia, Laboratório de Malacologia Límnica e Terrestre, Instituto de Biologia Roberto text Zoologia 2022 e 21022 2022-04-11 39 1 11 http://dx.doi.org/10.1590/s1984-4689.v39.e21022 journal article 263645 10.1590/S1984-4689.v39.e21022 bf0d9fa0-20e7-4d85-96c7-d72d43169320 1984-4689 8229835 BA8B3A25-8620-46B1-BE21-6F9FC6764B37

Table 1. Comparisons among Megaspira adenticulata sp. nov. from the Jararaca trail and other species/subspecies of Megaspira.

Species	Number of whorls	Shell high (mm)	Apertural lamella	Inner lamellae	Type locality
Megaspira elatior Spix, 1927	23	75	Present	Three ascending three whorls	Minas Gerais
Megaspira elata Gould,1847	19 to 21	40	Present	Lower radial barrier	Brazil
Megaspira iheringi Pilsbry,1925	14.5	28	Present	Three small ascending two whorls	Macaé
Megaspira elatior gracilis Pilsbry,1904	18½to 19½	36 to 36.5	Present	Same pattern of that of M. elatior robusta	Brazil
Megaspira elatior robusta Pilsbry,1904	19	38	Present	Three lamellae ascending three whorls	Brazil
Megaspira pilsbryi Rehder,1945	19	38	Present	No data	Brazil
Megaspira adenticulata sp. nov.	16	27	Absent	Absent	Ilha Grande