| australia | new south wales | elysia furvacauda | species | 2 | 0 |
| australia | new south wales | elysia sp. 21 jev-2014 | species | 4 | 0 |
| australia | new south wales | elysia sp. 22 jev-2014 | species | 3 | 0 |
| australia | new south wales | elysia sp. 23 jev-2014 | species | 2 | 0 |
| australia | new south wales | elysia sp. 25 jev-2014 | species | 4 | 0 |
| australia | new south wales | thuridilla neona | species | 3 | 0 |
| australia | queensland | bosellia sp. 1 jev-2014 | species | 1 | 0 |
| australia | queensland | costasiella kuroshimae | species | 1 | 0 |
| australia | queensland | elysia amakusana | species | 4 | 0 |
| australia | queensland | elysia asbecki | species | 2 | 0 |
| australia | queensland | elysia australis | species | 1 | 0 |
| australia | queensland | elysia bennettae | species | 3 | 0 |
| australia | queensland | elysia cf. setoensis kh-2010 | species | 2 | 0 |
| australia | queensland | elysia ornata | species | 7 | 0 |
| australia | queensland | elysia pusilla | species | 3 | 0 |
| australia | queensland | elysia sp. 1 kh-2007 | species | 3 | 0 |
| australia | queensland | elysia sp. 11 gc-2014 | species | 8 | 0 |
| australia | queensland | elysia sp. 5 gc-2014 | species | 1 | 0 |
| australia | queensland | elysia sp. 5 kh-2007 | species | 3 | 0 |
| australia | queensland | elysia stylifera | species | 1 | 0 |
| australia | queensland | elysia tomentosa | species | 6 | 0 |
| australia | queensland | plakobranchus ocellatus | species | 7 | 0 |
| australia | queensland | plakobranchus sp. 'white' jv-2013 | species | 1 | 0 |
| australia | queensland | thuridilla carlsoni | species | 5 | 0 |
| australia | queensland | thuridilla gracilis | species | 7 | 0 |
| australia | queensland | thuridilla kathae | species | 3 | 0 |
| australia | tasmania | elysia cf. tomentosa 5 jv-2013 | species | 2 | 0 |
| australia | tasmania | elysia sp. 22 jv-2013 | species | 4 | 0 |
| australia | tasmania | thuridilla carlsoni | species | 2 | 0 |
| australia | tasmania | thuridilla neona | species | 3 | 0 |
| austria | tyrol | elysia crispata | species | 2 | 0 |
| bahamas | | costasiella ocellifera | species | 83 | 0 |
| bahamas | | costasiella sp. aav-2014 | species | 5 | 0 |
| bahamas | | elysia cf. tomentosa 2 jev-2014 | species | 2 | 0 |
| bahamas | | elysia cf. tomentosa 2 jv-2013 | species | 2 | 0 |
| bahamas | | elysia papillosa | species | 3 | 0 |
| bahamas | | elysia patina | species | 1 | 0 |
| bahamas | | elysia pratensis | species | 3 | 0 |
| bahamas | | elysia serca | species | 3 | 0 |
| bahamas | | elysia zuleicae | species | 1 | 0 |
| bahamas | | thuridilla picta | species | 5 | 0 |
| bahamas | bimini district | elysia sp. 18 jev-2014 | species | 4 | 0 |
| bahamas | new providence district | elysia ellenae | species | 1 | 0 |
| bahamas | san salvador district | costasiella ocellifera | species | 15 | 0 |
| bahamas | san salvador district | elysia cf. zuleicae jev-2014 | species | 1 | 0 |
| bahamas | san salvador district | elysia zuleicae | species | 1 | 0 |
| bermuda | | bosellia mimetica | species | 4 | 0 |
| bermuda | | costasiella ocellifera | species | 1 | 0 |
| bermuda | | elysia cf. cornigera lc-2010 | species | 2 | 0 |
| bermuda | | elysia papillosa | species | 4 | 0 |
| bermuda | | elysia subornata | species | 1 | 0 |
| bermuda | | thuridilla picta | species | 2 | 0 |
| brazil | | elysia evelinae | species | 2 | 0 |
| china | | elysia atroviridis | species | 2 | 0 |
| china | hainan | elysia leucolegnote | species | 3 | 0 |
| china | inner mongolia | costasiella coronata | species | 4 | 0 |
| colombia | | elysia papillosa | species | 4 | 0 |
| colombia | | elysia patina | species | 5 | 0 |
| colombia | | thuridilla picta | species | 4 | 0 |
| cuba | | bosellia sp. lc-2010 | species | 2 | 0 |
| cuba | | elysia cf. cornigera lc-2010 | species | 3 | 0 |
| cuba | | elysia marcusi | species | 2 | 0 |
| cuba | | elysia papillosa | species | 1 | 0 |
| cuba | | elysia patina | species | 2 | 0 |
| cuba | | thuridilla picta | species | 1 | 0 |
| curacao | | costasiella ocellifera | species | 14 | 0 |
| curacao | | elysia ornata | species | 1 | 0 |
| france | | elysia timida | species | 3 | 0 |
| france | | elysia viridis | species | 4 | 0 |
| france | | thuridilla hopei | species | 1 | 0 |
| france | bretagne region | elysia viridis | species | 2 | 0 |
| france | languedoc-roussillon region | bosellia mimetica | species | 4 | 0 |
| france | languedoc-roussillon region | elysia sp. 3 gc-2014 | species | 3 | 0 |
| france | languedoc-roussillon region | elysia timida | species | 4 | 0 |
| france | languedoc-roussillon region | elysia translucens | species | 3 | 0 |
| france | languedoc-roussillon region | elysia viridis | species | 4 | 0 |
| france | provence-alpes-cote d'azur region | elysia timida | species | 16601 | 0 |
| french polynesia | | plakobranchus sp. bmoo-13127 | species | 1 | 0 |
| french polynesia | | thuridilla vatae | species | 4 | 0 |
| french polynesia | windward islands | costasiella paweli | species | 4 | 0 |
| french polynesia | windward islands | elysia cf. marginata 3 jv-2013 | species | 4 | 0 |
| french polynesia | windward islands | elysia sp. pw-2014 | species | 1 | 0 |
| french polynesia | windward islands | plakobranchus aff. 'purple' jev-2014 | species | 3 | 0 |
| french polynesia | windward islands | plakobranchus aff. 'purple' jv-2013 | species | 3 | 0 |
| guam | | elysia cf. marginata 1 jv-2013 | species | 1 | 0 |
| guam | | elysia cf. tomentosa 6 jev-2014 | species | 2 | 0 |
| guam | | elysia cf. tomentosa 6 jv-2013 | species | 2 | 0 |
| guam | | elysia sp. 16 jev-2014 | species | 4 | 0 |
| guam | | elysia sp. 9 jev-2014 | species | 4 | 0 |
| guam | | plakobranchus cf. ocellatus kh-2010 | species | 1 | 0 |
| guam | | plakobranchus ocellatus | species | 55904 | 0 |
| guam | | thuridilla livida | species | 2 | 0 |
| india | | elysia sp. zp0013 | species | 1 | 0 |
| indonesia | | elysia macnaei | species | 1 | 0 |
| indonesia | | plakobranchus papua | species | 3 | 0 |
| indonesia | | thuridilla albopustulosa | species | 1 | 0 |
| indonesia | | thuridilla bayeri | species | 1 | 0 |
| indonesia | | thuridilla lineolata | species | 1 | 0 |
| indonesia | south sulawesi province | elysia macnaei | species | 1 | 0 |
| indonesia | south sulawesi province | plakobranchus sp. 1 jev-2014 | species | 2 | 0 |
| indonesia | south sulawesi province | plakobranchus sp. 1 jv-2013 | species | 3 | 0 |
| indonesia | south sulawesi province | thuridilla lineolata | species | 3 | 0 |
| italy | | thuridilla hopei | species | 10 | 0 |
| italy | tuscany region | thuridilla hopei | species | 1 | 0 |
| jamaica | | costasiella nonatoi | species | 1 | 0 |
| jamaica | | elysia cornigera | species | 2 | 0 |
| jamaica | | elysia marcusi | species | 2 | 0 |
| japan | chiba prefecture | elysia abei | species | 2 | 0 |
| japan | chiba prefecture | elysia atroviridis | species | 5 | 0 |
| japan | chiba prefecture | elysia obtusa | species | 4 | 0 |
| japan | chiba prefecture | elysia ornata | species | 2 | 0 |
| japan | chiba prefecture | elysia rufescens | species | 2 | 0 |
| japan | kagoshima prefecture | costasiella paweli | species | 2 | 0 |
| japan | kagoshima prefecture | elysia marginata | species | 9211 | 0 |
| japan | kagoshima prefecture | plakobranchus sp. 'blue' jv-2013 | species | 4 | 0 |
| japan | kagoshima prefecture | thuridilla kathae | species | 4 | 0 |
| japan | kanagawa prefecture | elysia abei | species | 2 | 0 |
| japan | kanagawa prefecture | elysia cf. marginata 3 jv-2013 | species | 3 | 0 |
| japan | kanagawa prefecture | elysia hamatani | species | 1 | 0 |
| japan | kanagawa prefecture | elysia setoensis | species | 1 | 0 |
| japan | mie prefecture | elysia ornata | species | 2 | 0 |
| japan | niigata prefecture | elysia abei | species | 4 | 0 |
| japan | niigata prefecture | elysia amakusana | species | 2 | 0 |
| japan | niigata prefecture | elysia ornata | species | 4 | 0 |
| japan | niigata prefecture | elysia trisinuata | species | 2 | 0 |
| japan | okinawa prefecture | costasiella sp. 7 cf. kuroshimae jev-2014 | species | 4 | 0 |
| japan | okinawa prefecture | costasiella sp. cos1 | species | 2 | 0 |
| japan | okinawa prefecture | elysia cf. marginata 2 jv-2013 | species | 3 | 0 |
| japan | okinawa prefecture | elysia cf. marginata 3 jev-2014 | species | 2 | 0 |
| japan | okinawa prefecture | elysia cf. marginata 3 jv-2013 | species | 4 | 0 |
| japan | okinawa prefecture | elysia cf. marginata 4 jev-2014 | species | 2 | 0 |
| japan | okinawa prefecture | elysia cf. marginata 4 jv-2013 | species | 3 | 0 |
| japan | okinawa prefecture | elysia cf. tomentosa 1 jev-2014 | species | 2 | 0 |
| japan | okinawa prefecture | elysia cf. tomentosa 1 jv-2013 | species | 2 | 0 |
| japan | okinawa prefecture | elysia cf. tomentosa 3 jev-2014 | species | 4 | 0 |
| japan | okinawa prefecture | elysia cf. tomentosa 4 jv-2013 | species | 2 | 0 |
| japan | okinawa prefecture | elysia minima | species | 4 | 0 |
| japan | okinawa prefecture | elysia ornata | species | 2 | 0 |
| japan | okinawa prefecture | elysia pusilla | species | 14 | 0 |
| japan | okinawa prefecture | elysia rufescens | species | 6 | 0 |
| japan | okinawa prefecture | elysia sp. 30 'red' jev-2014 | species | 3 | 0 |
| japan | okinawa prefecture | elysia sugashimae | species | 4 | 0 |
| japan | okinawa prefecture | elysia thompsoni | species | 3 | 0 |
| japan | okinawa prefecture | plakobranchus ocellatus | species | 11 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'black' jev-2014 | species | 1 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'black' jv-2013 | species | 2 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'blue' jv-2013 | species | 4 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'purple' jev-2014 | species | 2 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'purple' jv-2013 | species | 4 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'spotless' jev-2014 | species | 3 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'spotless' jv-2013 | species | 1 | 0 |
| japan | okinawa prefecture | plakobranchus sp. 'white' jv-2013 | species | 1 | 0 |
| japan | okinawa prefecture | thuridilla carlsoni | species | 4 | 0 |
| japan | okinawa prefecture | thuridilla gracilis | species | 6 | 0 |
| japan | okinawa prefecture | thuridilla livida | species | 6 | 0 |
| japan | okinawa prefecture | thuridilla splendens | species | 8 | 0 |
| japan | wakayama prefecture | elysia rufescens | species | 4 | 0 |
| japan | yamaguchi prefecture | elysia ornata | species | 2 | 0 |
| maldives | | elysia pusilla | species | 5 | 0 |
| maldives | | elysia serca | species | 1 | 0 |
| maldives | | elysia tomentosa | species | 1 | 0 |
| martinique | | elysia sp. n. 1 jev-2015 | species | 4 | 0 |
| mauritius | | thuridilla hoffae | species | 1 | 0 |
| mexico | | thuridilla mazda | species | 2 | 0 |
| mexico | yucatan | elysia cf. cornigera lc-2010 | species | 1 | 0 |
| namibia | | elysia sp. 1 jev-2014 | species | 4 | 0 |
| panama | bocas del toro province | costasiella nonatoi | species | 5 | 0 |
| panama | bocas del toro province | elysia flava | species | 3 | 0 |
| panama | bocas del toro province | elysia subornata | species | 1 | 0 |
| panama | bocas del toro province | elysia tuca | species | 6 | 0 |
| papua new guinea | | plakobranchus aff. 1 jv-2013 | species | 2 | 0 |
| papua new guinea | | plakobranchus aff. sp. 1 jev-2014 | species | 2 | 0 |
| philippines | | plakobranchus ocellatus | species | 34 | 0 |
| philippines | central visayas region | plakobranchus sp. 2 jev-2014 | species | 3 | 0 |
| philippines | central visayas region | plakobranchus sp. 2 jv-2013 | species | 1 | 0 |
| portugal | | elysia crispata | species | 1 | 0 |
| portugal | | elysia viridis | species | 26 | 0 |
| portugal | acores autonomous region | thuridilla hopei | species | 2 | 0 |
| portugal | madeira autonomous region | thuridilla hopei | species | 2 | 0 |
| samoa | | elysia bennettae | species | 3 | 0 |
| samoa | | elysia obtusa | species | 3 | 0 |
| samoa | | thuridilla hoffae | species | 3 | 0 |
| samoa | | thuridilla vatae | species | 3 | 0 |
| singapore | | elysia chilkensis | species | 4 | 0 |
| singapore | | thuridilla gracilis | species | 1 | 0 |
| south korea | | elysia ornata | species | 2 | 0 |
| south korea | south jeolla province | elysia atroviridis | species | 3 | 0 |
| south korea | south jeolla province | elysia nigrocapitata | species | 3 | 0 |
| spain | | elysia timida | species | 1 | 0 |
| spain | | elysia viridis | species | 4 | 0 |
| spain | andalusia | thuridilla hopei | species | 2 | 0 |
| spain | balearic islands | bosellia mimetica | species | 1 | 0 |
| spain | balearic islands | elysia timida | species | 6 | 0 |
| spain | balearic islands | thuridilla hopei | species | 2 | 0 |
| spain | catalonia | bosellia mimetica | species | 32 | 0 |
| spain | catalonia | elysia timida | species | 1 | 0 |
| spain | catalonia | elysia viridis | species | 1 | 0 |
| spain | catalonia | thuridilla hopei | species | 3 | 0 |
| thailand | krabi province | elysia cf. tomentosa 5 jev-2014 | species | 2 | 0 |
| thailand | krabi province | elysia cf. tomentosa 5 jv-2013 | species | 1 | 0 |
| united states | | elysia chlorotica | species | 1 | 0 |
| united states | california | elysia hedgpethi | species | 4 | 0 |
| united states | florida | costasiella arenaria | species | 4 | 0 |
| united states | florida | costasiella nonatoi | species | 10 | 0 |
| united states | florida | costasiella ocellifera | species | 22 | 0 |
| united states | florida | elysia canguzua | species | 4 | 0 |
| united states | florida | elysia cf. papillosa gc-2014 | species | 3 | 0 |
| united states | florida | elysia cornigera | species | 7 | 0 |
| united states | florida | elysia crispata | species | 9 | 0 |
| united states | florida | elysia marcusi | species | 7 | 0 |
| united states | florida | elysia orientalis | species | 4 | 0 |
| united states | florida | elysia papillosa | species | 4 | 0 |
| united states | florida | elysia patina | species | 11 | 0 |
| united states | florida | elysia pratensis | species | 5 | 0 |
| united states | florida | elysia subornata | species | 10 | 0 |
| united states | florida | elysia tuca | species | 1 | 0 |
| united states | florida | elysia zuleicae | species | 6 | 0 |
| united states | hawaii | elysia cf. marginata 2 jv-2013 | species | 1 | 0 |
| united states | hawaii | elysia degeneri | species | 1 | 0 |
| united states | hawaii | elysia lobata | species | 4 | 0 |
| united states | hawaii | elysia sp. 5 jev-2014 | species | 1 | 0 |
| united states | hawaii | plakobranchus ocellatus | species | 3 | 0 |
| united states | hawaii | plakobranchus sp. hk103 | species | 1 | 0 |
| united states | hawaii | plakobranchus sp. hk107 | species | 1 | 0 |
| united states | hawaii | plakobranchus sp. hk118 | species | 1 | 0 |
| united states | hawaii | plakobranchus sp. pk101 | species | 1 | 0 |
| united states | hawaii | thuridilla carlsoni | species | 3 | 0 |
| united states | hawaii | thuridilla kathae | species | 3 | 0 |
| united states | hawaii | thuridilla neona | species | 1 | 0 |
| united states | maryland | elysia chlorotica | species | 3 | 0 |
| united states | massachusetts | elysia chlorotica | species | 1976 | 0 |
| united states | virginia | elysia chlorotica | species | 1 | 0 |
| vanuatu | | elysia asbecki | species | 4 | 0 |
| venezuela | | elysia pusilla | species | 1 | 0 |