Home Acknowledgments Conventions Glossary Maps References Links Articles Thumbnails Species list	Breakdown of Known Hawaiian Opisthobranchs by Group Group # spp % Cephalaspidea (trad.) 91 18.3      Acteonoidea 10 2.0      Cephalaspidea 81 16.3 Thecosomata 26 5.2 Gymnosomata 5 1.0 Anaspidea 14 2.8 Sacoglossa 62 12.5 Notaspidea (trad.) 16 3.2      Tylodinoidea 2 0.4      Pleurobranchomorpha 14 2.8 Nudibranchia 283 56.9      Doridacea 175 35.2           cryptobranchs 136 27.4           phanerobranchs 39 7.8      Dendronotacea 17 3.4      Arminacea 6 1.2      Aeolidacea 85 17.1 Total 497   For those who are interested in figures for the benthic fauna, the following table excludes the pelagic/planktonic species in the Thecosomata and Gymnosomata as well as Stylocheilus longicauda, Cephalopyge trematoides, Doto sp. #1, Tergipes sp. #1, Fiona pinnata and Glaucus atlanticus. Group # spp % Cephalaspidea (trad.) 91 19.8      Acteonoidea 10 2.2      Cephalaspidea 81 17.6 Anaspidea 13 2.8 Sacoglossa 62 13.5 Notaspidea (trad.) 16 3.5      Tylodinoidea 2 0.4      Pleurobranchomorpha 14 3.0 Nudibranchia 278 60.4      Doridacea 175 38.0           cryptobranchs 136 29.6           phanerobranchs 39 8.5      Dendronotacea 15 3.3      Arminacea 6 1.3      Aeolidacea 82 17.8 Total 460
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