l 



POLYZOA. 



POLYZOA. 



or bWrmioal, contractile, and when the polypjde U 

 with a triage or row of seUe, oouectod by 



Ptlwuu WTTKO, Cray, and including 

 UmlffmtUm, 



, Johnston, 

 , Gray. 

 AlfyoiJ*l<r, Johnston. 



Family 1. 



< VIU tubular or ovate, separate, aruing from a basal tube common 

 to all or to ereral ; mouth terminal. 

 Vmienlennda, Johnston. 



Oca. 1. Strialmna, Lamarck. (Pig. S5.) 



I >1U unUerial or biserial, and unilateral, placed in close aeU at 

 ttated intervals ; baud tube divided into internodes. 



Stnataria. Lamarck; Ilinso; Fleming; Templeton ; Couch; He 



Blainville. 



Am*tJ,M, Lamouronx, Ac. 

 Three or four species. 



Ocn. 2. \'c*ic*laria, J. V. Thompson. 



Cell* orate or tubtubular, diijunct, uniaerial, and unilateral ; poly- 

 pide with a giztard. 



I'aUrna (sp.), Fleming. 



1'encmlaria, Thompson ; Farre; Johnst; Van Beneden ; Couch. 

 On specie*. 



Oca 3. Yallaria, Fleming. 



Cell* orate, clustered in whorl* at the joints of the b.isal tube ; 

 polypidea without a gizzard. 



Yaltaria, Johnston ; Fleming ; Farre ; Van Beneden. 

 IVjioWan'a (pA Thompson. 

 Cntfularia, De Hlainville. 



Gen. 4. Botr<rba*tia. 



Cells unilateral, irregularly placed, sessile ; polypides with a gizzard 

 (armed with two teeth). 



Bmrertemkia, Farre ; Jolnuton ; Van Beneden. 

 One spsnins 



OD. 5. Farrtlla. (Pig. 27.) 



Cells elliptical, scattered ; polypide without a giziard. 

 Pamlla, Khraoberg ; Johnston. 

 Layntila, Fam. 



, Van Brneden. 

 Two species. 



Grn. C. AnyuixeHa, Van Bonedru. 



Cells tabular, supported on a common (talk, and branching out in 

 a palmate faihion. 



, Van Beneden. 



Family 2. Alryo*iod<r, Johnston. 



Cell* fleshy, immersrd, angular; mouth terminal, simple, con- 

 tractile. 



. Gray. 



Altftmada. Johnston. 

 Alcyr*\d*ia, Johnston. 



Oen. 1. Alryo*idt*m, Lsmouroux. 



1'olyzoary Tariously lobed, maaairo, fleshy, erect, or adimtp. 

 Alcyomium, Ellis ; Baxter ; I'alUs ; Linn.; Oliri ; K\wr; Muller; 



Lamonronz ; I >e lilainrille ; Ac. 

 A Itymidmm, Lamouroui ; Gray ; Hooker ; Johnston ; W. Thornp- 



on ; Ac. 



llalodadyl**, Parre ; Van Beneden. 

 ty/o. (sp.), HaaMUL 

 srdUra</s>s.(r),HasaaII. 

 Three or four species. 



Hub-Order IV. P. Paliallinea, Ocrrais. 



Lopbopkore produced upwards on the back of the tentacle*, 

 uniting them at their bate in a sort of muscular calyx. 



Family 1. PtdittUimida, Johnston. 



Gen. 1. p f <liattiM, Sara. 



I'olypi'le not retractile within the delicate dosely adnate eotooyat, 

 which M produceil downwards into a long tubular pedicle, containing 

 muscular firms, and rising vertically from a creeping radical tube. 

 llflra (p.), Homing; Bosc.; Litter; Sharper. 

 PtdMlinn, Sir. ; Johnston : Van Beneden. 

 Luia, Milne- Edwards; I>e lUainrllle; Oerrais ; Hasaall. 

 CHuoswy**, Van Beneden. 

 Two or three ipceiea. 



Strlmifrut (sp.), M tiller ; BOK. ; Lamarck. 

 Three sprde*. 



Order II. ftlftoa Mppocrtpia, Grrrais. 



Tm tacles disposed on crescentic or bone-shoe shaped lophophore ; 

 etrenion of endocyst only partial 

 ' 



kipfoertpia, Orar. 

 Ltmmuult*, Jobuitou; Alhuan. 

 Freshwater Polyioa, Allman. 

 Freatiwater Bryotoa, Hancock. 

 Bryozoaires Fluriatilrs, Van BeueJen. 



Family 1. CrUatcllidr, Ailn.a-. 

 Polyzoary free, locomotive. 



Gen. 1. OrutateUa, Cuvier. 



1'olyzoary sacciform, hyaline, with a common flattened disc al.i;'t. 1 

 for locomotion ; orifiora placed on the surface opposite to the di- 

 arranged in several concentric margins! aeries; ova lenticular, with 

 aim iUr and marginal spines. 

 One species. 



Family 2. PUmattllula, Allman. 

 Folyzoary rooted. 



A. Lophophore with two long arms. 



Gen. 1. Lophopiu, Dumortier. 



Polyzoary sacciform, hyaline, with a disc which serves for attach- 

 ment, but not for locomotion ; oriBces scattered ; ectocyst gclatinou.-. 

 Polype it Panache, Trcmbley. 

 Bell-Flower-Animal, Baker. 

 .\aiia, Lamouroux ; Deslongcbamps. 



Plumatella (sp.), Schweigger ; De Hlainville ; Gcrvais ; Lamarck. 

 AlfyontUa, Raapail; Johnston; All moil. 

 Lophop>u, Van Beneden ; Allmau. 

 One specie*. 



Gen. 2. Atcyonclla, Lamarck. 



PolyKoarium tubular; tubes united by their sides; otificcH terminal; 

 ectocyst pergamentaceoua. 

 Tubularia, Pallas. 

 Leucopkra, Muller. 

 Alcyoriium, Brugui6re. 

 Spongia, SchmiodeL 



Alcyooella, Raspail ; Pallas (up.) ; Alluiau, Ac. 

 Plumalella, Gervais. 

 Three specie*. 



Gen. 3. Plumaiella, Lamarck. (I'iy. 30.) 



Polyzoary tubular ; tubes distinct ; octocyst pergamentaceous. 

 Tmbipora, Linnaeus. 



2*M/aria, Miiller ; Liunicus ; Vaucher ; Turton. 

 .Vaua, Lnmouroux ; Uevlungchamps. 



I'luinatilla, He Blainville ; Cams; Lamarck; Dumortier; Jolin- 

 ston; Gervais; Allman; Thompson; Van Beneden; Dalzcll; 

 Sohweigger ; Iliaso, Ac. 

 Ten species. 



JO, ritimtlrlln rritlala. 



II. Lophophoro with the arms obsolete. 



Gen. 4. FnJericrlla, Gcrvais. 



Polyzoary coufervoid, composed of a membrano-oomeous branched 

 tube, with the branches distinct and terminated by the orifices ; 

 Inphophore nearly circular, tentacular crown campanulate ; ova bean- 

 shaped, destitute of annulua or spines. 

 TtAularia, Blumenbacb ; Gmelin. 

 ,Voua, Limouroux. 

 Dijluffia, Meyen. 

 f'lamattlla, Fleming ; Duui >rtier ; Jo'.iustou. 



