496 ALCYONIDIID^E. 



tall, stout, subconical papillae, wrinkled transversely, 

 from which the polypides issue, and which render the 

 surface hirsute. 

 Polypide with 16-18 tentacles. 



HABITAT. On old shells, Ascidians, stems of zoophytes, 

 from shallow to deep water. 



LOCALITIES. Northumberland, deep water (Alder) : 

 Filey (T. H.). 



GEOGRAPHICAL DISTRIBUTION. Bahusia, 10-12 fathoms ; 

 Spitzbergen, 5-30 fathoms (Smitt) : Nova Zembla, Be- 

 luscha Bay, 60-70 fathoms ; Kara sea (Stuxberg & 

 Theel). 



This very marked species is at once recognizable by its 

 roughened surface. The zoarium seems to be always 

 adherent ; the cells are prolonged above ; and the produced 

 portion, supporting the orifice, turns upward and forms 

 an elongate, somewhat conical process, which is strongly 

 wrinkled. The roughness of the surface is quite appa- 

 rent to the naked eye. The crust is thick and somewhat 

 coriaceous. 



ALCYONIDIUM LINEARE, Hincks. 



ALCYONIDIUM LINEAHE, Hincks, MS. and Ann. N. II. for September, 1877, 



217 : Alder, North. Cat. loc. cit. 21 (sep.). 

 ALCYONIDIUM IIIRSUTUM, forma HIFPOTHOEIDES, Smitt, loc. cit. 497. 



Zoaecia oval, with prominent tubular orifices, immersed in 

 a gelatinous crust, disposed in linear series, which 

 generally branch from a central mass. 



HABITAT. On shells from deep water. 



LOCALITIES. Dogger bank, on mussels (T. H.) : Culler- 



