56 THE HYDROMEDUSAE 



Family 2. Porpitidae. Genera — Porjyalia, Hkl. ; Porpema, Hkl. ; Por- 

 2)?<('//((, Hkl. ; Por2)?7a, Lamk. Family 3. Vklellidae. Genera — lUitaria, 

 Esch. ; Velella, \ji\\\k. ; Anncnista, \{k\. 



Sub-Order 2. Calyconectae. 



Definition. — Sij)lionophora without pneuniatophore, with nne or more 

 ncctojihores. The coenosarc is ek)ngatcd and tnlnUar, and curries tlie 

 corinidia whicli may lifcome freed as Eudoxomes or Ei"saeomi's i ^Mono- 

 gastricjie). 



Family 4. Monoph\il)ak. Genera — Moiwj)htjcs, Ckiu.s ; t^j'^mcronectes, 

 Hiixl. ; Gymbonedes, Hkl. ; Muggiaea, Busch ; Cymba, Esch. ; Doramasia, 

 Chnn ; Halopyramis, Chun. Family 5. Diphyidae. Genera — Praya, 

 IMainv. ; Lilyopsis, Chun ; Galeolaria, Lesueur ; Diphyes, Cuv. ; Mitro- 

 phy<'>', Hkl. ; Ih'phyopsis, Hkl. ; Abyla, Quoy Gainu ; Bassiit, Quoy CJainu ; 

 C«^/i(', Quoy Gaim. ; Auiphicanjon. Family 6. Stephanophyidae. Genn.s 

 StiphuHophyes, Chun. Family 7. Desmophyidae. Gen«ra — Iksmalia, 

 Hkl. ; I >i'smophyes, Hkl. Fasiily 8. Polyphyidae. Genera — Hi2)popodius, 

 Quoy Ciaim. ; Pohjphyes^ Hkl. ; Vogtia, Koll. 



[Family Eudoxidae (includes free KudoxoiiR's of other genera, the 

 names of which are included in S(|Uaro brackets). (Jenera — Diplophysu., 

 Gegenl)., [J'^phaeronectes] ; Eudoxella, Hkl., [Praya] ; Ci(citbalns, Quoy (iaim., 

 [Miigijiaca]; Cucnllus, Quoy Gaim., [Diphyes]; Cuboides, Quoy GaiuL, 

 [Cyniba]; Amphirrhoa, Blainv., [Abyla]; Spheiwiiles, Huxl., [Z)ass?'«] ; 

 Aglaisma, Esch., [Calpe], Family Er.saeidae (includes free Ei-saeome-s of 

 other genera, the names of which are included in square brackets). 

 Genera — Ersaea, Esch., [Ih'phyopsis] ; Lilaea, Hkl., [Lilyiypsisy^ 



Sl'u-Ordku 3. Phy.sonectae. 



Ihfinition. — Siphonophora with an ai)ical pneuniatophore, followed 

 by one or "more coronae of nectophores or bracts, without auroj)hore. 

 The coenosarc is elongated and tubular, and cariies the corniidia. 



Family 9. Circaliidae. CJenus — Circalia, Hkl. Family 10. 

 Athohiidae. Genera — Athoria, Hkl.; Athoralia, Hkl. Family 11. 

 Apolemiiuae. Genera — Dicymba, Hkl. ; Apolemia, Ksch. ; Apolemopsis, 

 Brandt. Family 12. Aualmidae. (Jenera — Stephauomia, Per. Le>>. ; 

 Crystallodes, Hkl. ; Phyllojihysa, L. Aga.s.s. ; Agalma, Esch. ; Anthemodes, 

 Hkl. ; Cuneohtria, Eysenh. ; JLdistemma, Huxl. ; Ciipulita, Quoy Gaim. ; 

 Agaliiiopsis, M. Sars ; Lychnagalwa, Hkl. Family 13. For-skalidae. 

 (Jenera — Strobalia, Hkl. ; Forshdlett, Kiill. ; Forskdliopsis, Hkl. ; ]}a(hy- 

 physa, Studer. Family 14. Nectalidae. Genera — Nectalia, Hkl.; 

 ,S;//ii/;v»j»/ii/.s-(i, L. Aga.s.-i. Famma' 15. DiscoLAUinAE. Genera — Physophura, 

 Forsk. ; J)iscolabe,VjSch. ; St>phan(ispira,Gvgi.'nh. Family 16. Anthophy- 

 sidae. Genera — 7i/(ot/o^/ii/s«, Blainv. ; Melophysa, Hkl.; Athorybia,Esch.; 

 Anthophysa, Mertens. 



Slli-OUDEII 4. AURONECTAE. 



Definition. — Siphoiiophora with an apical ]nu'Umato]»hore, followed 

 by coronae of nectophores, and cirrying an aurojihore. Individuals con- 



