Prunum sapotilla, from here.

Belongs within: Muricoidea.
Contains: Marginellini.

The Marginellidae, margin shells, are a group of small neogastropods with a thickened lip to the shell, and lacking an operculum. Members of the subfamily Marginelloninae are generally larger than Marginellinae, and have a distinctive short radula bearing broad rachidian teeth with a large number of cusps.

<==Marginellidae [Marginelladae, Marginelloidea, Rhachiglossidae]
    |--Marginellona Martens 1904 [Marginelloninae] BR05
    `--Marginellinae BR05
         |--Austroginella Laseron 1957 [Austroginellini] BR05
         |--Marginellini BR05
         `--Prunum Adams & Adams 1853 [Prunini] BR05
              |--P. martini (Petit 1853) S11
              |--P. poulosi Lipe 1996 BC01
              `--P. (Prunum) sapotilla (Hinds 1844) [incl. Marginella evax Li 1930] BC01

Marginellidae incertae sedis:
  Cryptospira Hinds 1844 F27a
  Gibberula Swainson 1840 F27a
    |--G. albotriangularis Rolán & Fernandes 1997 BC01
    |--G. aldridgei (Usticke 1969) [=Persicula aldridgei] BC01
    |--G. charbarensis (Melvill 1897) [=Marginella (Gibberula) charbarensis] BC01
    |--G. decorfasciata Rolán & Fernandes 1997 BC01
    |--G. pulchella (Kiener 1830) MG-H11
    `--G. rauli Fernandes 1987 BC01
  Mesomarginella valei Powell 1932 HS01
  Granula BR05
    |--G. achenea Roth & Coan 1971 BC01
    `--G. insularum Roth & coan 1971 BC01
  Cypraeolina Cerulli-Irelli 1911 O27
    `--C. pyriformis (Carpenter 1865) [=Volutella pyriformis] O27
  Closia Gray 1857 P61
    |--*C. sarda [=Marginella sarda] P61
    |--C. maoria Powell 1937 P61
    `--C. profunda (Suter 1909) P61
  Rivomarginella G88

*Type species of generic name indicated


[BR05] Bouchet, P., & J.-P. Rocroi. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1–2): 1–397.

[BC01] Boyko, C. B., & J. R. Cordeiro. 2001. Catalog of Recent type specimens in the Division of Invertebrate Zoology, American Museum of Natural History. V. Mollusca, part 2 (class Gastropoda [exclusive of Opisthobranchia and Pulmonata], with supplements to Gastropoda [Opisthobranchia], and Bivalvia). Bulletin of the American Museum of Natural History 262: 1–170.

[F27a] Finlay, H. J. 1927a. A further commentary on New Zealand molluscan systematics. Transactions and Proceedings of the New Zealand Institute 57: 320–485.

[G88] Gray, J. 1988. Evolution of the freshwater ecosystem: the fossil record. Palaeogeography, Palaeoclimatology, Palaeoecology 62: 1–214.

[HS01] Hayward, B. W., A. B. Stephenson, M. S. Morley, W. M. Blom, H. R. Grenfell, F. J. Brook, J. L. Riley, F. Thompson & J. J. Hayward. 2001. Marine biota of Parengarenga Harbour, Northland, New Zealand. Records of the Auckland Museum 37: 45–80.

[MG-H11] McEnnulty, F. R., K. L. Gowlett-Holmes, A. Williams, F. Althaus, J. Fromont, G. C. B. Poore, T. D. O’Hara, L. Marsh, P. Kott, S. Slack-Smith, P. Alderslade & M. V. Kitahara. 2011. The deepwater megabenthic invertebrates on the western continental margin of Australia (100–1100 m depths): composition, distribution and novelty. Records of the Western Australian Museum Supplement 80: 1–191.

[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. II pt I. Stanford University Press: Stanford University (California).

[P61] Powell, A. W. B. 1961. Shells of New Zealand: An illustrated handbook 4th ed. Whitcombe and Tombs Limited: Christchurch.

[S11] Simone, L. R. L. 2011. Phylogeny of the Caenogastropoda (Mollusca), based on comparative morphology. Arquivos de Zoologia 42 (4): 161–323.

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