Keranella cryptodon (S. Moricand, 1851)

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: SCOLODONTIDAE

ESPÉCIE: Keranella cryptodon (S. Moricand, 1851)

Tamanho médio: ~5 mm

Habitat: vive no solo, sob folhas, ou enterrado parte do tempo

Ocorrência: Brasil (Bahia)

Localidade tipo: “La province de Bahia”, Bahia, Brasil

Nome original: Helix (Streptaxis) cryptodon S. Moricand, 1851

Sinônimos: Streptaxis (Discartemon) cryptodon; Streptartemon cryptodon; Rectartemon cryptodon

Etimologia: o nome da espécie deriva das palavras gregas para “escondido” (“hidden”) e “dente” (“tooth”)

Redescrição:

(Roosen, Salvador & Breure, 2025): “Shell small, width c. 5 mm, lenticular, with a step-like spire. Whorls 5–5¼, tightly coiled, with a rounded profile. Suture well marked. Protoconch 2–2½ whorls, smooth; transition to teleoconch without a well-marked change in sculpture. Teleoconch lacking sculpture; varix-like structures may be present on teleoconch at irregular intervals, indicating a temporary cessation of shell growth and thickening of peristome. Aperture narrow, rectangular, with two apertural barriers: one parietal tooth and one elongate basal/palatal barrier. Peristome slightly thickened.”

Fotos: (1,2) Roosen, Salvador & Breure, 2025: Musée d’Histoire Naturelle, Geneva, Switzerland, SYNTYPE MHNG-INVE-68687, Bahia, 5mm

Fontes:

Descrição original: (como Helix (Streptaxis) cryptodon S. Moricand, 1851) Moricand S. (1851). Description de deux espèces d’Hélices (S.G. Streptaxis). Journal de Conchyliologie. 2: 369-371., disponível online em https://www.biodiversitylibrary.org/page/15855244
página (s): 370, pl. 10, figs 2a-d

Simone, L. R. L. (2006). Land and Freshwater Molluscs of Brazil. Editora Gráfica Bernardi, FAPESP. São Paulo, 390 pp.
página(s): 196

Roosen, Salvador & Breure, 2025. Revision of the genera of Scolodontidae, part 3: Entodina Ancey, 1887, Keranella gen. nov., Martinella Jousseaume, 1887, †Patagocharopa Miquel & P.E. Rodriguez, 2016, Polygyratia Gray, 1847, Ridleyconcha Christensen, 2020, Smenodonta gen. nov., Systrophia L. Pfeiffer, 1855, and Zilchistrophia Weyrauch, 1960. Journal of Conchology. Vol. 45, no. 3

Brown, K. (2023). A guide to the hunter shells. Vol. 2. The Streptaxoidea. The Enneinae, Orthogibbinae, Marconiinae, Odontartemoninae, Streptaxinae and the Diapheridae. ConchBooks, Germany.
página: 340

MolluscaBase: https://molluscabase.org/aphia.php?p=taxdetails&id=1448706