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Species / Dicolpus Obesus

Dicolpus Obesus

  • Dicolpus
    • Dicolpus obesus Philippi, 1887

Original Description of Dicolpus obesus by Philippi. 1887, p. 40:

  • "Testa ovoidea, laevigata, in parte posteriore (s. superiore) anfractum nodifera; anfractus ultimus vix ac ne vix quidem in medio constrictus; apertura valde angustata. - Altit. 25, crass. obliqua 19 mm.""

Comment Philippi, 1887, p. 41:

  • "Vom verstorbenen Volckmann vermuthlich bei Lebu oder Tubul gefunden, nach dem Gestein zu urtheilen, in welchem das Gehäuse steckt. Wir besitzen nur ein Exemplar, dem die Spitze fehlt, und ein anderes, das in der Länge getheilt ist und deutlich beweist, dass die Spindel faltenlos ist. Die Anwachsstreifen sind sehr deutlich; auf der letzten Windung stehen 12 Knoten."

Dicolpus obesus Philippi, 1887, pl. 1, fig. 20


History and Synonymy

2017

Coan & Kabat, 2017, p. 173:

  • "obesus, Dicolpus – Philippi, 1887a: 40–41 [1887b: 37], pl. 1, fig. 20. Lebu or Tubul, Chile; Tertiary. Syntype, SGO.PI.753 (n = 1, from Tubul). Type species of Dicolpus Philippi, 1887. A secondary homonym of Melanopsis obesa Bourguignat, 1884; renamed Melanopsis tumida Pallary, 1916 (p. 86) (even if no longer classified in that genus, Pallary’s replacement name is to be used). As Philippi’s species is from a marine deposit, it is unlikely to be a freshwater taxon."

References

  • Coan, E.V. & Kabat, A.R. 2017. The malacological contributions of Rudolph Amandus Philippi (1808-1904); Malacologia, 60(1-2): 31-322.
  • Cossmann, M., 1909, Essais de paléoconchologie comparée, 8: 1–248, 4 pls., Fulltext
  • Kabat, A.R. & Coan, E.V. 2017. The Life and Work of Rudolph Amandus Philippi (1808–1904), Malacologia 60(1–2), 1-30.
  • Philippi, 1887. Die Tertiären und Quartären Versteinerungen Chiles; Brockhaus, Leipzig, 266 pp. 58. pls, [Mollusca: pp. 33-216, pls. 1-47]. Published simultaneously in Spanish as 1887b, Los fósiles Terciarios i Cuatarios de Chile. Gobierno de Chile, Santiago, 256 pp. [with added Errata on p. 256, keyed to pagination of Spanish vol.], 58 pls. [Mollusca: pp. 30-209, same pls.], Fulltext
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