Streptaxis iheringi (Pilsbry, 1930)

CLASSE: GASTROPODA: TERRESTRE

FAMÍLIA: STREPTAXIDAE

ESPÉCIE: Streptaxis iheringi (Pilsbry, 1930)

Tamanho médio: 21 mm

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

Ocorrência: Brasil (São Paulo ?, Alagoas)

Localidade tipo: Brasil, sem localidade específica (“probably from the state of Sao Paulo or southward”)

Nome original: Artemon iheringi Pilsbry, 1930

Etimologia: o nome da espécie é uma homenagem ao zoólogo teuto-brasileiro Hermann von Ihering (9 de outubro de 1850 – 24 de fevereiro de 1930). Foi o fundador e primeiro diretor do Museu Paulista, em São Paulo, em 1894

Descrição original:

(Pilsbry, 1930): “The shell is umbilicate (the width of umbilicus contained about five and one-fourth times in that of the shell), Sagda-shaped, thin but moderatel strong. Periostracum ivory-yellow, very glossy.

The spire is convexly conic. Whorls 8, very slowly increasing, quite convex, the last rounded; suture well impressed. Sculpture: first 21 whorls smooth, the rest with very fine, close, weakly curved retractive rib-striae, which on the last whorl become coarser and weaker, and on the base there are some very weak, coarse wrinkles of growth, subobsolete in places.

There is a narrow, slightly projecting brown varix on the front of the last whorl, marking a growth-rest with formation of a peristome at that place. The aperture is oblique, lunate. Peristome is slightly thickened and very narrowly expanded, somewhat dilated at the columella. The insertions are remote, connected by a very thin callus.”

Fotos: (1,3) Salvador, Charles, Simone & Maestrati (2018): Museu de Zoologia da Universidade de São Paulo, Streptaxis iheringi, MZSP 133857, diâmetro 15.6mm, Pedra Talhada, Alagoas, Brasil; (2) The Academy of Natural Sciences of Philadelphia, LECTOTYPE de Streptaxis iheringi; ANSP 151896, doado por von Ihering, viii.1930, “probably from the state of Sao Paulo or southward”

Fontes:

Descrição original: (como Artemon iheringi Pilsbry, 1930)  Pilsbry, H. A. (1930). South American land and freshwater mollusks. Notes and description, 7. Proceedings of the Academy of Natural Sciences of Philadelphia. 82: 355-365.
página(s): 362, pl. 32, fig. 6a-b 

Simone, L. R. L. (2006). Land and Freshwater Molluscs of Brazil. Editora Gráfica Bernardi, FAPESP. São Paulo, 390 pp.
página(s): 192

Salvador R. B.; Charles L.; Simone L. R. L.; Maestrati, M. (2018). Terrestrial gastropods from Pedra Talhada Biological Reserve, Alagoas state, Brazil, with the description of a new species of Radiodiscus (Gastropoda: Charopidae). Archiv für Molluskenkunde. 147(1): 101-128

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: 318

MolluscaBase: https://www.molluscabase.org/aphia.php?p=taxdetails&id=1448249