81 \l V.EOSTOME I. I LOR] -< \. t''H."i 



The medusae of this family arc cleisclv related to tin C'umeieLe, hut differ in that their 

 radial-canals are placed in intercommunication In means of .1 marginal circular canal; 

 moreover, th radial-canals anastomose in some ol the ".em-ia, and tins is iu-\ei the case in 

 the Cyancidae. 



The [H-nira ot the Ulmarul.e a ic .is lolhms: 



I . Sl |;E AMI IV r\ll:kosl\ f . 



The i'n> i I ihe margin in tin- ilcfts between the l.ipp.-i'. 4 evaginatedi sac-like gonads without subgenital 



pits. S or ih marginal 4 unbran. mils. 



( / lun- 11 (miniature r) = t'losculu Ft SAECCEL, i s^o. X rliop.ih.i, ^4 ' [I unbranchcd 



ra.li.tl-i.in.il . 

 Diiramaftiia, Cuua, 1877 I'lman : IKum. it i d and 



intrrraji.il I i branchedf tli B a 



Parumbrosa, KISIUMC \i, nji". Similar to D 



volume.) 

 I' ndo<ti HAK K f i , i SSo. x Hi. i;..ili.i, eo tentacles, }8 lappets. K > ; lusn. 



Dipllllniaris, MAAS, l<ri> ' , , : . \ hNHOrPENj l')^ s . ' (l ' !'"(>. ill ' . ' il-can.il- ansr frnni 



stomach. '! hr [6 rbopalar caoals branch and the i ' trnj.n ul.u nipK . All can.ils an- merged in a marginal 



network of ana^> : n 



:, Si I:H AMU v Si in N"\IN t . 



Tentacles arise from floor of siibiimbrell.i . i I, sac-like e,on.i Is \\nhoi!- pits. 8 to |6 marginal S4?nsc- 



orpans. 4 unbranche.l moutl]- 

 Sllienfjniti, Ks. i: i i ! [ent.ule . P. rr.t.lial ainl interratlial 



canals branched. Adradial can i'le an.i some br-in 



Pharellofliora,Kv.f.\n\, iS;q. i d iiurnn. 1 ins .iltein.itiii); with 16 iln 1.1 ..I tentacles. Radial-canals in the 



rhop.ilar rajii arc bran. ; i !n simple-. 4 g,.n 



Pornl:,.. \ ii iiitN. njo;. \ninrr. .11 -traii^ht, unbramlie.l i.i.li,.!-. .in.il . NIIIH.I...I t^.m.uls in a ring around the 

 ich-coargin. 



; . Si ni \\iii. \ At R M r. i . 



'rin- tentacles anil) i '.' arise from thi ides of the disk above the margin i I ona v, uli rxi.Tn.il mi 



pits. S marginal en . organs. 4 simple or bilnn .ir.-,l Tii.iiMh-.inir . \M: . I in : La] 



.INK ///(.'. 1't RON AND Ki si v i i:, i So.). 4 : 1 1 1 1 . , i . . 1 1 1 1. 1 1 1 1 1 1 - ,i 1 1 1 1 . S. . 1 1 1 r or all of the radial-canal 



anastomosing branches. ) gona i 

 Aurosa, HAICKEL, i SXo. Similar to .lurrllia but with 4 bifurcated mouth-arms. 



Subfamily UMBROSIN^. 

 SUBFAMILY CHARACTKRS. 



The tentacles arise sinly I'tom the hell-margin in clefts heiween lappets. 4 protrusive, 

 haj;-like gonads without subgcnital pits. 4 unbranched mouth-arms. 



(?) Genus FLORESCA Haeckel, 1880, sens. ampl. 

 Floscula + Flortsca, HAFIKH. iSSo, Syit. .l.-r \1. ,lu en, p. 537, 538 



Cl M UIl (II \K Ml IKS. 



Haeckel's m-nera /'/'/ ///'' and /'/'/;, M. .< may possil)l\- he the \ onii" stages of some niedus;c 

 of the Ulmaridae. In these- loims \\( find that tin- central .stomach gives use to simple radial- 

 canals which connect with one another Ky means nl a m.ii ^inal ring-canal. The tentacles 

 arise from the clefts lie-i\\ee-n the- lappers, not from tlie floor ot the- subumbrella. \\ e must 

 bear in mind, houevei, that in the your ol < ' the tentacles Hist appear in the clefts 



hct\\ccn the lappets and late-r the- margin gn.us ontuaul, |..i\ing them to proje-cr from the 

 stihumhrella. Indeed all tentacles in Sc\ phomeelus.e aie stiu.tuiis of the subumbrella. 



Flosfiiln has 8 tentacles anil i'> maiginal lappets; Floresca has ^4 tentacles and $2 

 marginal lappets. Indeed Floresca pie-se-nts e-\ei\ .ippe-atance ol being immature and onlv 

 an advanced stage of " /'l>,-nl<i," both lieing one aiul the same species. Heith ceime from 

 the tropical Indian and 1'acitic Oceans. 



A brief descriplion of these meelnsa- mav In- e>f seivice should t!u-\ prove to be mature 

 forms. Haeckel is the only naturalist \\lio has seen them. 



"Floresca parthenia" Haeckel. 



Floresca parthenia* /'. fallaila, HAMKII, r I 



Flosfula promcthrn (younger siare). llvi. n i . .' ". i 1- ' ''Tc 



Bell rounded, 50 mm. wide, .jo high, \sitli a id-ra\ed pigmented star-like marking in 

 the perrailii, intenaelii, and adradii of the exumbrella. S rheipalia, iS 4! ^ tongue-shaped 



