POLTZOA. 



! 'LYZOA. 



418 



Polyaoary mot* or lea* expanded, faliaoeooa, 

 Polymer/ wbdirided into branching lobe*. 



Oen. >. Rttrpora, ImperaU. (Pig.M.) 



Polytoarinm foUaeeoua, calcareous, reticulated. Cell* immened, 

 opening at one anrfaoe only. 



JTOIqwra, Unn.(pan) ; FJli. and SoUnder; Bmr ; Manigli ; Curi,-r. 



jMMra, Imprntu ; Lamarck; Rieao; Fleming; Stark; De Blain 



yUle; Coach; Johnttoo; Ooldfus* (pen); Hagenow (pan); 



/VcMrfrpert,Oken; De Bliuuville. 

 Three apeoiea. 



Family 11 AbMHoc/e, Buak. 



Polyxoary more or lea* regularly orbicular, convex on one tide, plane 

 or concave on the other (probably free). Furniahed with large and 

 powerfol vibracnla, with rviouily formed aeU> (probably locomotire). 

 Stlnmriodv, Bu.k ; ' Brit. Mua. Cat,' p. 97. 



Oen. 1. C'*i-ul<iria, Luunouroux. 



(Pig. 18 ; ride tlmfiy-. in CKLLARIXA.) 

 cell throughout th* polycoary with a ribraculum at the 



, Lamouroux (propoMd) ; Brit Hot. Cat,' p. 97. 



bamooroux (pan) ; Defranoe (pan). ; Dealongohampa 

 (pan); Ooldfaa* (pan); D* Blainrille (pan); Gny; Cnrier 

 and BrongnUrt; LonadaU (pan) ; Micbclin (pan). 



Five apteiee (recent) ; namerona foetU. 



Oen. 2. LtuHtlila, Lamouroux. 



OeOt arranged in aerie* radiating from the centre and bifurcating at 

 they advance; vibracuU In linear eerie* alternate with thoae of the 

 celU. 



A* in the preceding ipecie*. 

 FOOT apede* (recent) ; numerou* foetil. 



Oen. 8. fUtmtria, Back. 



Only a certain number of oella, dupened at uniform diiUncee apart, 

 furninhed with ribracula. The front of each cell furnUhed. covered 

 by a cribriform calcareou* expaoaion ; the othen arched above and 

 . 



i), Bnak, < Voyage of Rattleanake. 1 

 'Brit Moa. Cat; p. 1"1. 



SubOrder 1 1. CgtloHomal*. 



CelU tubular, calcareou*, immened or exaerted ; mouth terminal, 

 without any moveebl* appendage or Up. 

 T*lHtl>fnrinn, Milne-Edwarda. 

 TukUtporida. JohlMton. 

 Amlfftrima (pan), Ehrenberg ; Jnhnaton. 



A. Ereoto. 



Polyxmry erect, free, ilmplo or braoobed, linear or expanded 

 above ; brancbe* artieoUted or continuooa. 



Family 1. Crittada, Milne-Edwardt. 



Polyxoarinm divided into dutinct internodea, connected by a 

 homy eubetanoe. 



Oeo. 1. OritiJia, MJlne-Edwmrd*. 

 A tingle cell in each internode. 

 SrrliJaria (pan), Linn. ; Berkeley (pan); Eipcr (pan). 



tl 



U, Etrkara /oliarra. 18, Capularia Lox-ri. 19, rinenlaria ornata. 



> rlttJaria (pun), Palla* ; Hogg. 

 ' ''Uaria, Ellis and Solander (pare) ; I.amsrck (pan). 

 A'ncra/m, Lamouroux (pan); HUao (para); Fleming (| 

 Templeton. 



Uaria (pan), Itlainville. 

 ' V..;</;. Milne-Edwards. 

 tViio (pan), Johnston ; Haatall (pan), Ac. 

 One or two apecie*. 



Oen. 2. Critia, Lamouroux. (Fig. 20.) 

 Two or more cell* in each internodc. 



8yn. aa abore. 

 Three upecie* recent ; aeveral foasiL 



Family 2. ldmonra<l<t. 

 Pulyzoarium continuoun throughout, umially polymorphous 



Oen. 1. /'Imonra, I^amouroux. (Pig. 22.) 



Openings of cell* dipacd in tranirene or obliqun alternate tent* 

 on etch tide of the front of the branche* of the polyzoary, on whirh 

 i* a raWd line or ridge separating the row* of cell*. 

 /.' 'fpora (p.), Lamarck. 

 llornera (*p.), Def ranee. 

 Jdmmea, Lamouroux ; Blainrille. 

 Three or four prcim recent ; many font). 



Gen. 2. Pmtulipora, DC IMalnTille. (Pig. 23.) 

 Opening* of cell* dupoeed irregularly, on all nide* of the cylindrica 

 or com prc need bnnche* or lobe* of the polyzoary. 

 Ceriopora (pam), CJolilfua*. 

 Idmonea (*\. -ivillc. 



Puttutijiora, Dlainville ; Milnc-E<]warda ; Johniton. 

 Tut/ulijiora (p.), Couch. 

 Fire or ux *pecie* recent ; many foaiiL 



