Bulloidea form a superfamily of small and medium-sized nudibranches within the order Cephalaspidea.

The current taxonomy according to Bouchet et al. (2017) and accepted by WoRMS is:

  • Superfamily Bulloidea Gray, 1827
    • Family Bullidae Gray, 1827
      • Genus Bulla Linnaeus, 1758
      • Genus Hamineobulla Habe, 1950
    • Family Retusidae Thiele, 1925
      • Genus Pyrunculus Pilsbry, 1895
      • Genus Relichna Rudman, 1971
      • Genus Retusa T. Brown, 1827
      • Genus Sulcoretusa J. Q. Burch, 1945
    • Family Rhizoridae Dell, 1952
      • Genus Rhizorus Montfort, 1810
      • Genus Volvulella Newton, 1891
    • Family Tornatinidae P. Fischer, 1883
      • Genus Acteocina Gray, 1847

Species of Bulloidea reported in the Mediterranean or around the Iberian Peninsula:

Acteocina mucronata (Philippi,1849) @ Dubai (UAE) by Joop Trausel and Frans Slieker

Acteocina mucronata

Acteocina (Tornatina) crithodes by Melvill J. C. & Standen R. (1901)

Acteocina crithodes

Bulla arabica by Baki Yokes @ 20081108 Kas, Turquia 15m on Cymodocea nodosoa+Halophila stipulacea, night dive, size 48.5mm

Bulla arabica

Bulla striata @ Taranto, Italy 19-06-2016 by Enrico Ricchitelli

Bulla striata

Pyrunculus fourierii (Audouin,1826) @ Mersin, Turkey by Joop Trausel and Frans Slieker (Natural History Museum Rotterdam)

Pyrunculus fourierii

Pyrunculus hoernesi @ Croatia by Pero Ugarkovic

Pyrunculus hoernesi

Pyrunculus ovatus @ Artsdatabanken - Cephalaspids of Norway - by Lena Tina Ohnheiser

Pyrunculus ovatus

Retusa crossei (Bucquoy, Dautzenberg & Dollfus, 1886) 2mm from Malta in 35 m.

Retusa crossei

Retusa desgenettii @ Dahab, Egypt by Joop Trausel and Frans Slieker

Retusa desgenettii

Retusa laevisculpta @ Split, Croatia june 2021 by Pero Ugarković

Retusa laevisculpta

Retusa leptoeneilema @ Vranjic, Croatia 3-12-2016 by Jakov Prkić

Retusa leptoeneilema

Retusa mammillata @ Cariño (Ría de Ferrol) 10.02.2004 by Victoriano Urgorri

Retusa mammillata

Retusa minutissima @ Croatia by Pero Ugarković

Retusa minutissima

Retusa obtusa @ Artsdatabanken - Cephalaspids of Norway - by Lena Tina Ohnheiser

Retusa obtusa

Retusa truncatula @ Croatia by Pero Ugarković

Retusa truncatula

Retusa umbilicata @ Artsdatabanken - Cephalaspids of Norway - by Manuel Malaquias

Retusa umbilicata

Volvulella acuminata @ Artsdatabanken - Cephalaspids of Norway - by Lena Tina Ohnheiser

Volvulella acuminata

Volvulella ovulina @ Japan by Tadashige Habe

Volvulella ovulina


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

    Bibliography based on the works by Steve Long, 2006. Bibliography of Opisthobranchia 1554-2000 and Gary McDonald, 2009. Bibliographia Nudibranchia, with later updates from other resources.