SERTULAR1AD.E : SERTULARIA. 61 



May not the obscure Sertularia echinata of Linnaeus be referable 

 to this species ? 



9. SERTULARIA,! Linnaeus. 



CHARACTER. Polypidom, growing in the shape of a plant 

 and fixed by its base, variously branched, the divisions or 

 branches formed of a single tube denticulated or serrated with 

 the cells, and jointed at regular intervals : cells alternate or 

 faired, biserial, sessile, urceolate, short with everted apertures : 

 ovarian vesicles scattered. Polypes hydraform. 



* Cells alternate, one to each internode. 



1. S. POLYZONIAS, loosely branched, the branches patent, sub- 

 , cells alternate, urceolate, with a wide everted four- 

 aperture ; vesicles nearly egg-shaped and wrinkled 

 across. Jas. Newton. 



Var. *. Frondose, diffuse. PL x. fig. 1. 

 Var. /3. Caulescent, pinnate. PL x. fig. 2. 



PLATE X. FIG. 13. 



Corallina minus ramosa, alterna vice denticulata, Raii Syn. 35, no. 13, tab. 2, 

 fig. 4. Great Tooth Coralline, Ellis Corall. 5, no. 3, pi. 2, fig. a A, b B, and pi. 

 38, fig. 1 A. Corallina pennata et siliquata, ab ostreo abstracts, Bast. Opusc. i. 

 42, pi. 2, fig. 7. pessima. Sertularia polyzonias, Lin. Syst. x. 813. Lin. Syst. 

 1312. Ellis and Soland. Zooph. 37. Berk. Syn. i. 219. Esper Pflanz. Sert. 

 tab. 6, fig. 16. Oliv. Zool. Adriat. 290. Turt. Gmel. iv. 683. Blumenb. Man. 

 273. Turt. Brit. Faun. 216. Jameson in Wern. Mem. i. 564. Stew. Elem. ii. 

 447. Lam. Anim. s. Vert. ii. 117 : 2de e"dit. ii. 142. Lamour. Cor. Flex. 190. 

 Kisso 1'Europ. M6rid. v. 130. Base Vers.iii. 119. D. Chiaie Anim. s. Vert. Nap. 

 iv. 141. Hogg's Stock. 31. Flem. Brit. Anim. 542. Johnston in Trans. Newc. 

 Soc. ii. 256. Templeton in Mag. Nat. Hist. ix. 468. Blainv. Actinolog. 480. 

 Hassatt in Ann. and Mag. Nat. Hist. vi. 167. Couch Zooph. Corn. 6 ; Corn. 

 Faun. iii. 17. Sertularia flexuosa, Lin. Syst. x. 814, no. 34. Sertularia ericoides, 

 Pall. Elench. 127. Esper Pflanz. Sert. tab. 12, fig. 1, 2. Sertolara polizonia, 

 Cavol. Polip. mar. 224, tav. 8, fig. 12-14. Sertularia Gayi, Lamour. Expos. 

 Method. 12, tab. 66, fig. 8, 9. (var. ft.) Fig. bona. Sertularia pinnata, Templeton 

 in Mag. Nat. Hist. ix. 468. (var. .) Thompson in Ann. Nat. Hist. v. 250. 

 Sertularia hibernica, Johns. Brit. Zooph. 128. Sertularia Ellisii, M. Edwards in 

 Lam. Anim. a. Vert. 2de 6dit. ii. 142. Johns. Brit. Zooph. 123. Couch Zooph. 

 Corn. 6 ; Corn. Faun. iii. 17. 



+ From sertula, the diminutive of serta, a garland. 



