original description
Stechow, E. (1921d). Neue Genera und Species von Hydrozoen und anderen Evertebraten. <em>Archiv für Naturgeschichte.</em> 87: 248-265., available online at https://www.biodiversitylibrary.org/page/45494398
page(s): 249 [details] 
context source (Hexacorallia)
Fautin, Daphne G. (2013). Hexacorallians of the World. (look up in IMIS) [details]
basis of record
van der Land, J. (ed). (2008). UNESCO-IOC Register of Marine Organisms (URMO). , available online at http://www.marinespecies.org/urmo/ [details]
redescription
Campos, C. J. A.; Marques, A. C.; Migotto, A. E. (2007). A taxonomic revision of the genus Zyzzyzus Stechow, 1921 (Cnidaria: Hydrozoa: Tubulariidae). <em>Zootaxa.</em> 31, 1-22., available online at http://www.mapress.com/zootaxa/2007/zt01627p022.pdf [details]
From editor or global species database
Zyzzyzus warreni on Mycale angulosa, Brazil
Image from typetaxon
Hydranth of Zyzzyzus warreni from Brazil
Image from typetaxon
Zyzzyzus warreni from brazil, sporosac with actinula
Image from typetaxon