431 



POLYZOA. 



POLYZOA. 



422 



Calpidium, Busk ; 'Voyage of Rattlesnake,' i. 364 (.%. 3); 'Brit. 



Mug. Cat.,' p. 14. 

 One species. 



Family 2. Scrupariadte. 

 Junctions of the cells rigid. 

 Criiiadoe (part), Gray. 

 Scupariada!, Gray. 

 Eucratiada (part), Jolmst. 



Gen. 1. Scrupana, Okeu. 



Cells decumbent; aperture oblique, subterminal; branches given 

 off from the front of a cell below the aperture. 

 Scfuparia (a), Oken. 

 Scruparia, ' Brit. Mus. Cat.,' p. 28. 



Gen. 2. Illppothoa, Lamouroux. (Fi'j. 6.) 



Cells decumbent, adherent ; branches given off from the side3 of 

 the cells. 



///>/JO/Aoa, Lamx. ; Gray ; Johnst. ; ' Brit. Mus. Cat.,' p. 29. 

 Catmicella (para), Blainville (non M. Edwards). 

 Teretripora, D'Orbigny. 

 Tuljulipora, (sp.), Jameson. 

 Three ipecies known. 



6, nipiiothoa catenvlaria. 7, Eeania mirabilii ; it, natural size. 8, Furcimi- 

 naria acul'ata ; a, OTicelts. 9, liimctopia cornuta, 10, Ciiberea Soryi. 



Gen. 3. sEtea, Lamouroux. 

 Cells tubular, erect, scattered ; adnate and decumbent at tho base. 



jEtea, Latnx. ; Gray ; ' Brit. Mug. Cat.,' p. 30. 



Anyuinaria, Lamarck; Johnston. 



Palcaria (j8), Oken. 

 Four species. 



Gen. 4. Beania, Johnston. (Fig- 1-) 



Cells arising one from another by a slender filiform prolongation 

 or tube, and open in front ; marginal spines hollow, inarching. 



Beania, Johnst.- Gray; 'Brit. Mus. Cat.,' p. 32. 

 Two species. 



B. Cells disposed in a double or in multiple series. 



Family 3. Salicomariada;. 



Cells disposed around an imaginary axis, forming cylindrical 

 branches of a dichotomously-divided erect polyzoary. 

 Salicornariance, Gray. 

 Salicomariadcf, 'Brit. Mus. Cat.,' p. 15. 



Gen. 1. Salicornaria, Cuvier. (Fig. 4.) 



Front of each cell much depressed, surrounded by an elevated 

 ridge, by which the surface of the branch is divided into more or 

 less regular, rhomboidal or hexagonal spaces ; avicularia scattered ; 

 ovicells immersed, inconspicuous ; branches articulated. 



Salicornaria, Cuvier ; Johnston ; ' Brit. Mus. Cat.,' p. 16. 

 Farcimia, Fleming ; Johnston, ' Ed.' i. 

 Cellaria (a), Lamarck ; Lamx. ; De Blainville. 

 Five species. 



Gen. 2. Nellia, Busk. 



Front of cell convex, with a distinct raised border; aperture very 

 large; ovicells (?); no avicularia. 



Salicornaria (sp.), Busk., ' Voyage of Rattlesnake," i. 367. 

 Nellia, 'Brit. Mus. Cat.,' p. 18. 

 Two species. 



Gen. 3. Vincularia, Def ranee. (Fig. 19.) 



Polyzoary rigid, calcareous, inarticiilated ; surface not areolated ; 

 aperture large ; no avicularia ; ovicells inconspicuous. 



Vincularia, Defrance ; Blaiuv. ; Hagenow ; ' Brit. Mus. Cat.,' p. 96. 

 Qlauconoma, Goldfuss. 

 Siphonetta, Hagenow. 

 CM aria (pars), Reuss. 

 One recent species ; numerous fossil. 



Gen. 4. Farciminaria, Busk. (Fig. 8.) 



Polyzoary corneous, flexible ; margin of aperture much raised ; 

 aperture very large; ovicells cucullate, prominent; no avicularia. 



Farciminaria, ' Brit. Mus. Cat.,' p. 32. 

 One species. 



Family 4. Cellulariadce, Busk. 



Cells disposed in the same plane, forming liuear branches of a 

 dichotomously divided phytoid, erect, articulated polyzoary. 

 Bugulidoe (pars), Gray. 

 Cellularidas (pars), Johnston. 

 Eicharidce (pars), Johnston ; Gray. 

 Cellulariadce, 'Brit. Mus. Cat.,' p. 19. 



Gen. 1. Cellularia, Pallas. (Pig. 5.) 



Cells bi-triserial ; more than four in each iuteruode ; oblong or 

 rhomboidal, contiguous ; perforated behind, unarmed, or very rarely 

 with an avicularium on the upper and o'-ter angle of the cells. 



Cellularia (pars), Pallas ; Flemir^'/^ohnston (pars) ; ' Brit. Mil". 



Cat.,' p. 19. 



Bwjula (pars), Gray ; Oken. 

 Three species. 



Gen. 2. Menipea, Lamouroux. 



Cells oblong, or elongated and attenuated downwards ; imperforate 

 behind, with a sessile avicularium (frequently absent) on tlie upper 

 and outer angle, ami one or more sessile avicularia on the front of the 

 cell below the aperture (not always present). 

 Menipea, Lamx. ; ' Brit. Mus. Cat., 1 p. 20. 

 Cellaria (pars), Linn. ; Solander. 

 Critia (pars), Lamx. 

 Tricellaria. Fleming ; Blainville. 

 Six species. 



Gen. 3. Scrupocellaria, Van Beneden. 



Cells rhomboidal, with a sinus on the outer and hinder aspect ; each 

 furnished with a sessile avicularium at the upper and outer angle, and 

 with a vibraculum behind. Cells biserial and numerous in each 

 intern ode. 



Scrupocellaria, Van Beneden; Gray ; 'Brit. Mus. Cat.,' p. 23. 

 Bicellaria (sp.), Blainville. 

 Cellularia (sp.), Pallas ; Johnston. 

 Cellaria (sp.), Solander ; Lamarck. 

 Scruparia (sp.), Oken. 

 Seven species. 



Gen. 4. Canda, Lamouroux. 



Cells rhomboidal, sinuated on the outer side for the lodgment of a 

 vibraculum ; no avicularium on the upper and outer angle ; some- 

 times one in front of the cell. 



Canda, Lamx.; Blainville; Gray; 'Brit. Mus. Cat.,' p. 20. 

 Cellaria (sp.), Lamarck. 

 Cellarina, Van Beneden. 

 Bicelluria (sp.), Blainville. 



