Rhytida

Rhytida greenwoodii greenwoodi, copyright Jacqui Geux.

Belongs within: Rhytidoidea.

Rhytida is a New Zealand genus of moderately large snails with a light brown or olive green, often wrinkled-appearing shell bearing a protoconch of 1.5 whorls.

<==Rhytida Martens 1860 BR17
    |  i. s.: R. ferreziana K64
    |         R. inaequalis K64
    |–R. (Rhytida) P61
    |    |–*R. (R.) greenwoodii (Gray 1850) [=Helix greenwoodii] BR17
    |    |    |–R. g. greenwoodi P61
    |    |    `–R. g. webbi Powell 1949 P61
    |    |–R. (R.) australis Hutton 1873 P61
    |    |–R. (R.) citrina Hutton 1883 P61
    |    |–R. (R.) dunniae (Gray 1840) P61
    |    |–R. (R.) duplicata Suter 1904 P61
    |    |    |–R. d. duplicata P61
    |    |    `–R. d. vivens Powell 1946 P61
    |    |–R. (R.) forsythi Powell 1952 P61
    |    |–R. (R.) hadfieldi Powell 1949 P61
    |    |–R. (R.) meesoni Suter 1891 P61
    |    |    |–R. m. meesoni P61
    |    |    `–R. m. perampla Powell 1946 P61
    |    |–R. (R.) oconnori Powell 1946 P61
    |    |–R. (R.) otagoensis Powell 1930 P61
    |    |–R. (R.) patula Hutton 1883 P61
    |    |–R. (R.) pycrofti Powell 1932 P61
    |    |–R. (R.) spelaea Powell 1933 P61
    |    |–R. (R.) stephenensis Powell 1930 P61
    |    |–R. (R.) tarangaensis Powell 1930 P61
    |    `–R. (R.) yaldwyni Dell 1955 P61
    `–R. (Rhytidarex Powell 1948) P61
         |–R. (*R.) johnsoni Powell 1948 P61
         `–R. (R.) buddlei Powell 1948 P61

*Type species of generic name indicated

REFERENCES

[BR17] Bouchet, P., J.-P. Rocroi, B. Hausdorf, A. Kaim, Y. Kano, A. Nützel, P. Parkhaev, M. Schrödl & E. E. Strong. 2017. Revised classification, nomenclator and typification of gastropod and monoplacophoran families. Malacologia 61 (1–2): 1–526.

[K64] Krauss, N. L. H. 1964. Investigations on biological control of giant African (Achatina fulica) and other land snails. Nautilus 78 (1): 21–27.

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

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