SYNONYMS: 
Cellularia eburnea. Pallas. Elench. 75. 
Crisia aculeata. Johnston. Brit. Zooph. ed. 2; Hassall. Ann. 
N. H. (1841) 170. 
Orisia eburnea. Lamx. Hist. nat. des pol. corall. flex. 138; 
Johnst. Brit. Zooph. ed. 2, 283; Milne Edw. 
Ann. d, Sc. Nat. Il. Zoologie 198; Reid. 
Ann. N. H. XVI 385; Smitt. Oefv. k. Vet. 
Ak. Förh. 1864, 117 & 132. 
Cellaria eburnea. Ellis & Sol. Zooph. 24; Lamarck. Syst. d. 
Anim. s. Vert. ed. 2, II 184. 
Tufted Ivory Coralline. Ellis. Corall. 39 n°, 6. 
Sertularia eburnea. Linn. ed. 2, 1316. 
Sertolario d’avorio. Cavolini. Mem. dei Polipi marini 240. 
The spine on the outer side of the zooecia is wanting; zooecia 
prettily elongated; joints very clear, almost quadrangular, corneous, 
horn-coloured. 
Height about } inch. 
_ Loeality. Barents Sea. 72° 5’ N. lat.; 37° 57’ E. long. 140 fathoms. 
Habitat. On Ascidians and Zoophytes (chiefly Sertularians along 
with other Polyzoa as Cellularia Peachii, Menipea ternata &e, 
2. Crisia denticulata, Lamark. 
SYNONYMS: 
Cellaria denticulata. Lamk. S. Anım. s. Vert. ed. 2, II 182. 
Crisia luxata. Blainv. Man. d’Actinol. 1834, 460. 
Couch. Cornish Fauna 1844. 
Crisia dentieulata. Johnst. Brit. Zooph. ed 2 284. 
Busk. Monogr. of the (rag Polyzoa, 93. 
Milne Edw. Ann. d. sc. nat. ser. 2, Zool. IX, 201. 
Smitt. Öfv. af. k. Vetensk. Akad. Förhandl. 1864 
117 segq. 
2) 
In the present specimen of this species the branches are slender 
and delicate; the zooecia are relatively long and generally straight. 
In these respects the specimens correspond closely with the unnamed 
