Endemism and long distance dispersal in the waterfleas of Easter Island Author Damme, Kay Van text Zootaxa 2016 4154 3 251 272 journal article 38349 10.11646/zootaxa.4154.3.2 1cf8f6e4-43d5-42ad-8b42-b1b3d9c66516 1175-5326 258155 E4C24F55-72E2-43EB-91A6-1394F697802F ( Daphnia ( Daphnia ) sp.) Material . One ephippium from shallow water between vegetation, encanada, Terevaka ( 370m alt.), Leg. K. Desender, 20.XII.1993 , Easter Island (sample 93.156) Notes. Unknown Daphnia ( Daphnia ) species. 0.6mm in length, 0.5mm in width. Major axis of embryo chambers in ephippium perpendicular to the dorsal (carapace) margin. General shape symmetrical, not skewed posteriorly. Well-developed posterior spine with thick basis. Identification unknown. From one locality on Easter Island , Terevaka, with Ovalona , Sarscypridopsis and Paracyclops . The record is here placed between brackets, because only one ephippium was found. Until confirmation (more specimens), this should be treated as a potential contamination of the original sample.