CLASSE: GASTROPODA: TERRESTRE
FAMÍLIA: STREPTAXIDAE
ESPÉCIE: Campolaemus perexilis (E. A. Smith, 1892)
Tamanho médio: ~1.5 mm
Ocorrência: Santa Helena, considerado Extinto
Localidade tipo: Santa Helena, “Side Path, and the sinistral form from Sugarloaf Ridge (Turton). Extinct”
Nome original: Tomigerus ? perexilis E. A. Smith, 1892
Nomes sinonimizados: Tomigerus perexilis E. A. Smith, 1892
Fotos: (1) Páll-Gergely, B. (2020): Natural History Museum , London: SYNTYPE de Campolaemus perexilis (E. A. Smith, 1892), NHMUK 1892.2.24.150-170

Figura: Páll-Gergely, B. (2020): SYNTYPE de Campolaemus perexilis (E.A. Smith, 1892), NHMUK 1892.2.24.150–161: (A–H) dextral shell, St. Helena, Sugarloaf Ridge (specimen 1): (J) Sinistral shell, St. Helena, Side Path. Escala = 0.5 mm. crédito fotos: B. Páll-Gergel
Fontes:
Descrição original: (como Tomigerus perexilis E. A. Smith, 1892) Smith, E. A. (1892). On the Land Shells of St. Helena. (1892). Proceedings of the Zoological Society of London, 1892, página(s) 258–270, disponível online em https://www.biodiversitylibrary.org/part/70233
Páll-Gergely, B. (2020). Campolaemus Pilsbry, 1892 is not a hypselostomatid, but a streptaxid (Gastropoda: Eupulmonata). Ruthenica. 30 (1): 69–71., disponível online em https://doi.org/10.35885/ruthenica.2021.30(1).8
página(s): 71, figs 1-2
Pilsbry, H. A. & Cooke, C. M. (1918-1920). Manual of conchology, structural and systematic, with illustrations of the species. Ser. 2, Pulmonata. Vol. 25: Pupillidae (Gastrocoptinae, Vertigininae). pp i-ix, 1-404, pls 1-34. Philadelphia, published by the Conchological Section, Academy of Natural Sciences. [pp. 1-64, pls. 1-5, Nov. 5, 1918; pp. 65-144, figs. 1-9 + 2, pls. 6-10, Feb. 20, 1919; pp. 145-224, pls. 11-18, Jun. 30, 1919; pp. 225-404, i-ix, figs. 1-8 + 1, pls. 19-34, May 28, 1920]. Manual of Conchology, structural and systematic. 1-401, pl. 1-34., disponível online em https://www.biodiversitylibrary.org/page/23703860
page(s): 365-366, pl. 33, figs. 13, 16-19; note: With mutatio ascendens Pilsbry, 1920: 366, pl. 33, figs. 16, 18-19 and mutatio contrarius Pilsbry, 1920: 366, pl. 33, fig. 13
Natural History Museum (2026). Natural History Museum (London) Collection Specimens. Occurrence dataset https://doi.org/10.5519/qd.wy3pnifq accessed via GBIF.org on 2026-06-05. https://www.gbif.org/occurrence/1826207332
MolluscaBase: https://molluscabase.org/aphia.php?p=taxdetails&id=1355346