CLASSE: GASTROPODA: TERRESTRE
FAMÍLIA: ACHATINELLIDAE
ESPÉCIE: Tornatellides chathamensis (Dall, 1892)
Tamanho médio: 3 mm
Ocorrência: Equador, Arquipélago de Galápagos (Ilhas de Fernandina, Floreana, Isabela, Pinzón, San Cristóbal e Santa Cruz)
Localidade tipo: Equador, Arquipélago de Galápagos, Ilha de San Cristóbal
Altitude: 525 – 656 m
Nome original: Leptinaria chathamensis Dall, 1892
Sinônimos: Bulimulus (Pelecostoma) cymatoferus Reibisch, 1893; Tornatellina chathamensis (Dall, 1892)
Descrição original:
“Shell small, with a blunt apex and six rounded whorls; suture very distinct; horncolored; surface polished, delicately marked with lines of growth; base rounded, relatively rather widely umbilicated; aperture with the margin hardly thickened, rounded in front and at the suture; pillar broad, thin; body with a single elevated, thin, sharp lamina, extending spirally inward from a point a little behind the peristome and nearly equidistant from the inner and outer lips; 3.0 × 1.6 mm” (DALL, 1896; PILSBRY 1915)
Fotos: (1) HOLOTYPE de Tornatellides chathamensis, USNM 107322, Chatham Island, SW end of Island, coletado em samambaias, 3mm

Figura: Miquel, S. E.; Herrera, H. W. (2014): (5–7) Tornatellides chathamensis Dall 1892; (5) USNM 107322, SYNTYPE, San Cristóbal Island; (6) ICCDRS 0036629, Isabela Island, Sierra Negra/Pampa; (7) ICCDRS 0036629, Isabela Island, Sierra Negra/Pampa, detail of a parietal rib; (8–10) Tornatellides floreanae; (8) HOLOTYPE ICCDRS 0036992, Ecuador, Galápagos, Floreana Island, Pampa de Alviar; (9) PARATYPE ICCDRS 0037050, Galápagos, Floreana Island, Cerro Alieri; (10) PARATYPE ICCDRS 0036932, Floreana Island, Pampa de Alviar, detalhe da abertura da concha
Fontes:
Descrição original: (como Leptinaria chathamensis Dall, 1892) Dall, W. H. (1892). On some types new to the fauna of the Galápagos Islands. The Nautilus. 5(9): 97–99., disponível online em https://www.biodiversitylibrary.org/page/42788893
página(s): 98
Descrição original: (como Bulimulus (Pelecostoma) cymatoferus Reibisch, 1893) Reibisch P. (1893 [“1892”]). Die conchyliologische Fauna der Galapagos-Inseln. Sitzungsberichte und Abhandlungen der Naturwissenschaftlichen Gesellschaft Isis in Dresden. 1892(3): 13-32., disponível online em https://www.biodiversitylibrary.org/page/53776884
página(s): 26, Taf. II, Fig. 7
Chambers, S. M. & Steadman, D. W. (1988). Holocene terrestrial gastropod faunas from Isla Santa Cruz and Isla Floreana, Galápagos: evidence for late Holocene declines. Transactions of the San Diego Society of Natural History. 21(6): 89-110, figs. 1, 2A-L, 3., disponível online em https://www.biodiversitylibrary.org/page/4287005
página(s): 94-95
Miquel, S. E.; Herrera, H. W. (2014). Catalogue of terrestrial gastropods from Galápagos (except Bulimulidae and Succineidae) with description of a new species of Ambrosiella Odhner (Achatinellidae) (Mollusca: Gastropoda). Archiv für Molluskenkunde. 143(2): 107-133., disponível online em https://doi.org/10.1127/arch.moll/1869-0963/143/107-133
página(s): 110, figs 5–7, map 3
MolluscaBase: https://molluscabase.org/aphia.php?p=taxdetails&id=1306912