Varicella gracillima, copyright John Slapcinsky.

Belongs within: Stylommatophora.

The Testacelloidea are a group of predatory snails and slugs, including predators of earthworms and other snails.

    |--Testacella Draparnaud 1801 [Testacellacidae, Testacellidae, Testacellina, Testacellinae] BR05
    |    |--T. haliotidea BP90
    |    `--T. scutulum RP91
    |--Spiraxidae BR05
    |    |--Micromena Baker 1939 [Micromeninae] BR05
    |    `--Spiraxis Adams 1850 [Spiraxinae] BR05
    |         |  i. s.: S. irregularis T59
    |         |           |--S. i. irregularis T59
    |         |           `--S. i. negligens T59
    |         `--S. (Pseudosubulina Strebel & Pfeffer 1882) T59, BP90
    |              |--‘Pseudosubulina’ cheatumi BP90
    |              `--S. (P.) splendens Thompson 1959 T59
    `--Oleacinidae [Oleacinacea] BR05
         |--Euglandina Crosse & Fischer 1870 [Euglandinarum, Euglandininae, Euglandinini] BR05
         |    `--E. rosea SS96
         |--Varicella Pfeiffer 1854 [Varicellarum, Varicellinae, Varicellini] BR05
         |    `--V. gracillima BP90
         |         |--V. g. gracillima BP90
         |         `--V. g. floridana BP90
         `--Oleacininae BR05
              |--Oleacina Röding 1798 BR05
              |--‘Polyphemus’ Montfort 1810 non Müller 1776 BR05
              |--Streptostyla Shuttleworth 1852 [Streptostylarum, Streptostylinae, Streptostylini] BR05
              `--Glandina Schumacher 1817 [Glandinidae] BR05
                   |--G. carminensis A66
                   `--G. dactylus A66

*Type species of generic name indicated


[A66] Adams, H. 1866. List of land and freshwater shells collected by Mr. E. Bartlett on the Upper Amazons, and on the River Ucayali, eastern Peru, with descriptions of new species. Proceedings of the Zoological Society of London 1866: 440-445.

[BR05] Bouchet, P., J.-P. Rocroi, J. Frýda, B. Hausdorf, W. Ponder, Á. Valdés & A. Warén. 2005. Classification and nomenclator of gastropod families. Malacologia 47 (1-2): 1-397.

[BP90] Burch, J. B., & T. A. Pearce. 1990. Terrestrial Gastropoda. In: Dindal, D. L. (ed.) Soil Biology Guide pp. 201-309. John Wiley & Sones: New York.

[RP91] Raut, S. K., & A. Panigrahi. 1991. The mite Fuscuropoda marginata (C. L. Koch) for the control of pest slugs Laevicaulis alte (Férussac). In Dusbábek, F. & V. Bukva (eds) Modern Acarology: Proceedings of the VIII International Congress of Acarology, held in České Budĕjovice, Czechoslovakia, 6–11 August 1990 vol. 2 pp. 683-687. SPB Academic Publishing: The Hague.

[SS96] Simberloff, D., & P. Stilling. 1996. How risky is biological control? Ecology 77 (7): 1965-1974.

[T59] Thompson, F. G. 1959. A new Spiraxis from Guatemala. Nautilus 72 (4): 115.

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