MARINE POLYZOA. 25 



above. A large anterior sessile avicularium below the aperture. 

 Ovicell ? 



Scrupocellaria cyclostoma, Busk, Voy. of Rattlesn. i. 370. 

 Hab. Bass' Strait, 45 fathoms. 



6. SCRUPOCELLARIA PEROX. PL XXII. figs. 1, 2 & 5. 



Aperture broad, oval, pointed below. Margin rounded, un- 

 armed. An anterior avicularium frequently as wide as the cell 

 below the aperture ; external avicularium very small. Ovicell 

 punctured all over. 



Scrupocellaria ferox, Busk, Voy. of Rattlesn. i. 370. 

 Hab. Louisiade Archipelago. Bass' Strait. 



Distinguished at a glance from the preceding species by the 

 enormous anterior avicularium, which is often nearly as capacious 

 as the cell itself, and would, in the living state, afford an excellent 

 opportunity of investigating the structure and nature of these 

 appendages. The radical tubes in this species, as in S. macandrei, 

 are curiously serrated. 



7. SCRUPOCELLARIA SCRUPOSA. PL XXII. figs. 3, 4. 



Cells subelongate, narrow. Aperture elliptical, with three or 

 four spines above. Ovicell smooth. 



Creeping stony Coralline, Ellis, Corall. 38. no. 4. pi. 20. c, C. 

 Celliferous Coralline with angular edges to its cells, Ellis, Phil. 



Trans, xlviii. pi. 13. no. 7 ; Phil. Trans, abridg. x. 493. fig. 7- 



K,L. 

 Sertularia scruposa, Linn. Syst. 1315; Esper, Pflanz. Sert. t. 15. 



figs. 1-3; Berk. Syn. i. 220. 

 Cellularia scruposa, Pall. Elench. 72 ; Flem. Brit. Anim. 539 ; 



Couch, Zooph. Cornw. 57; Corn. Faun. iii. 126. pi. 23. fig. 2; 



Reid, Ann. $ Mag. Nat. Hist. xv. 69. & xvi. 388; Johnst. 



Hist. Brit. Zooph. ed. 2. 336. t. 58. figs. 5, 6. 

 Cellaria scruposa, Ellis and Soland. Zooph. 23 ; Bosc, Vers, iii. 



132. pi. 29. fig. 7 ; Lamk. Anim. s. Vert. ii. 141, ed. 2. ii. 192 ; 



Johnst. Trans. Newc. Soc. ii. 261. pi. 11. fig. 5. 

 Scruparia scruposa, Oken, Lehrb. Nat. 90. 

 Crisia scruposa, Lamour. Corall. 60; Templeton, lib. cit. ix. 469. 

 Bicellaria scruposa, Blainv. Act. 459. 

 Scrupocellaria scruposa, Van Beneden, Recherch. 43 & 50. pi. 5. 



figs. 8-16 ; Busk, Ann. Nat. Hist. 2nd Ser. vii. pi. 9. figs. 8, 



9, 10; Gray, List Brit. Rad. B. M. 111. 

 Hab. Britain. Seas of Europe. 



