Lacuninae

Northern lacuna Lacuna vincta, copyright Yale Peabody Museum of Natural History.

Belongs within: Littorinoidea.

The Lacuninae are a group of periwinkles found in the eulittoral and sublittoral zones, characterised by a paucispiral operculum usually bearing an internal ridge, and females lacking a seminal receptacle or having the receptacle at the end of a long duct. Members of the Northern Hemisphere genus Lacuna have a turbinated or globular shell with a semilunar aperture and flattened columella (Oldroyd 1927).

Lacuninae [Bembiciidae, Bembiciinae, Lacunidae, Lacunoidea]
    |--Pellilittorina C96
    |--Cremnoconchus Blanford 1869 [Cremnoconchinae] BR05
    |    `--*C. syhadrensis (Blanford 1863) [=Cremnobates syhadrensis] BR17
    |--Aquilonaria Dall 1886 O27
    |    `--*A. turneri Dall 1886 O27
    |--Risellopsis Kesteven 1902 P61
    |    `--*R. varia (Hutton 1873) [=Fossarina varia] P61
    |--Risella Gray 1842 [=Bembicium Philippi 1846; Risellidae, Risellinae] BR05
    |    |--*R. melanostoma (Gmelin 1791) [=Trochus melanostoma, *Bembicium melanostoma] BR17
    |    |--‘Bembicium’ auratum Quoy & Gaimard 1834 WG71
    |    `--R. girondica Benoist 1874 [=Peasiella girondica, Trochus risella Benoist 1874] R89
    |--Lacunella Deshayes 1861 [=Haloconcha Dall 1886] O27
    |    |--*L. depressa [=*Haloconcha depressa] O27
    |    |--‘Haloconcha’ minor Dall 1919 O27
    |    `--‘Haloconcha’ reflexa Dall 1884 O27
    `--Lacuna Turton 1827 BR05
         |  i. s.: L. albella N79
         |         L. compacta C64
         |         L. decorata C64
         |         L. divaricata Fabricius 1780 O27 [=Turbo divaricatus J64; incl. T. vinctus J64]
         |         L. glacialis Möller 1842 [incl. L. crassior] O27
         |         L. marmorata Dall 1919 O27
         |         L. pallidula [incl. L. pallidula var. neritoidea] J79
         |         L. porrecta Carpenter 1864 O27
         |           |--L. p. porrecta O27
         |           |--L. p. effusa Carpenter 1864 O27
         |           |--L. p. exaequata Carpenter 1864 O27
         |           `--L. p. puteoloides Carpenter in Dall 1919 O27
         |         L. solidula Lov. 1846 [incl. L. carinata Gld. 1848, Modelia striata] C64
         |         L. unifasciata Carpenter 1856 O27
         |           |--L. u. unifasciata O27
         |           `--L. u. aurantiaca Carpenter 1864 O27
         |         L. variegata Carpenter 1864 O27
         |         L. vestita N79
         |         L. vincta CS77
         |--L. (Lacuna) BR17
         |    |--*L. (L.) lacuna (Montagu 1803) [=Helix lacuna] BR17
         |    `--L. (L.) puteola O27
         `--L. (Boetica Dall 1918) O27
              `--L. (B.) vaginata Dall 1918 O27

*Type species of generic name indicated

REFERENCES

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

[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.

[C64] Carpenter, P. P. 1864. Supplementary report on the present state of our knowledge with regard to the Mollusca of the west coast of North America. Report of the British Association for the Advancement of Science 33: 517–686.

[C96] Crame, J. A. 1996. Evolution of high-latitude molluscan faunas. In: Taylor, J. D. (ed.) Origin and Evolutionary Radiation of the Mollusca pp. 119–131. Oxford University Press: Oxford.

[CS77] Cramp, S., & K. E. L. Simmons (eds) 1977. Handbook of the Birds of Europe, the Middle East and North Africa: The Birds of the Western Palaearctic vol. 1. Ostrich to Ducks. Oxford University Press: Oxford.

[J64] Jeffreys, J. G. 1864. The Upper Tertiary fossils at Uddevalla, in Sweden. Report of the British Association for the Advancement of Science 33 (Notices and Abstracts): 73–79.

[J79] Jeffreys, J. G. 1879. Notes on Colonel Montagu's collection of British shells. Journal of Conchology 2: 1–4.

[N79] Norman, A. M. 1879. The Mollusca of the fiords near Bergen, Norway. Journal of Conchology 2: 8–77.

[O27] Oldroyd, I. S. 1927. The Marine Shells of the West Coast of North America vol. 2 pt 3. Stanford University Press: Stanford University (California).

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

[R89] Reid, D. G. 1989. Systematic revision of the Recent species of Peasiella Nevill, 1885 (Gastropoda: Littorinidae), with notes on the fossil species. Nautilus 103 (2): 43–69.

[WG71] Wilson, B. R., & K. Gillett. 1971. Australian Shells: illustrating and describing 600 species of marine gastropods found in Australian waters. A. H. & A. W. Reed: Sydney.

Last updated: 22 December 2021.