452 Mr. S. 0. Eidley on Franz-Joseph-Land 



ginal row of perforations, above the mouth ; one pair of these 

 fenestra3 in particular resembles a pair of avicularian frames ; 

 and if they are avicularia they would appear to connect the 

 form with M. coccinea. It appears to have no connexion with 

 M. simplex^ Hincks, of the Barents Sea. 



Ohs. The form is certainly nearer to M. ventricosa than to 

 M. Peachii in both its general and more special characters ; 

 it is to be hoped that more adult specimens may be obtained 

 to decide the questions raised by its peculiarities. 



Escharoides Sarsi, Smitt. 



Eschara rosacea, Sars, Forh. Vid.-Selsk. Clir. 1862, p. 141. 

 Escharoides Sarsii, Smitt, (Efv. Akad, Forh. 1867, Bihang, pp. 24, 158, 

 pi. xxvi. ligs. 147-154. 



A fine tip of an Escharoid colony, closely resembling that 

 depicted in Smitt's fig. 147 {loc. cit.) ; reddish brown in colour. 

 The mouth is well represented in Smitt's fig. 150. The 

 avicularium within the mouth was the only one observed. 



Cyclostomata. 

 Crista denticulata^ Lamarck. 



Cellaria denticalata, Lamarck, Anim. s. Vert. (2) ii. p. 182. 

 Crisia denticulata, Milne-Edwards, Ann. Sc. Nat. (2) ix. p. 201, pi. vii. 

 fig. 1. 



Several small colonies, not exceeding 8 millim. in height. 

 Fronds broad, from two to four zooecial tubes in the breadth. 

 Internodes sometimes short ; joints between them inconspicu- 

 ous, often brown-coloured. Openings of cells almost round. 



Ocecia numerous ; rings surrounding ooecium seldom per- 

 ceptible ; openings of ocecia rare or absent. 



Lichenopora v&rrucaria^ Fabricius. 

 (PL XXI. fig. 5.) 



Madrepora vemicaria, FalDricius, Fauna Groenlandica, p. 430. 

 Licheno2wra verrucai'ia, Hincks, Hist. Brit. Mar. Pol. p. 478, pi. Ixiv. 

 figs. 4, 5. 



Seven colonies. Lip frequently bidentate. On Flustra car- 

 hasea &c. 



Septal Structures in Lichenopora. — In one of the older 

 colonies the zocecia exhibit a very distinct horizontal dia- 

 phragm crossing their cavity at various depths ; it is perfo- 

 rated in the centre by n small orifice. This structure is appa- 

 rently represented, though somewhat indistinctly, by Smitt 

 (CEfv. Akad. Forh. 1866, pi. xi. fig. 3) ; but the zooecial tubes 

 which contain it are taken by him for ooecial funnels j hence his 



