12 
14. Membranipora spinifera. Johnston. 
SYNONYMS: 
Membranipora spinifera. Alder. North. Cat. Trans. Tynes Field Club 
III. 143. 
Flustra spinifera. Johnst. Newc. N.H.S. Trans. II. 266. 
(?) Flustra lineata (part.) Johnst. Brit. Zooph. ed. 2, 349. 
Only two minute specimens. In one I found on the side of almost 
every cell a slender pedicellate avicularium, in the other the avi- 
cularia were relatively few in number. Sometimes they seemed to 
be developed on the margin of the cells. 
The pair of spines placed under the top of the zooecium is ge- 
nerally large in proportion to the others (about 10 in number). Rare. 
Locality: Barents-Sea. 72° 5’ N. lat., 37° 57’ E. long, 140 fathoms. 
Habitat: On Hydroids. 
15. Mempbranipora unicornis. Fleming. 
SYNONYMS: 
Membranipora lineata. 5 forma. unicornis, ßß. 
Smitt. Öfr. k. Vet. Akad. Förh. 1867. 
365, 399. 
Membranipora membranacea. Johnst. Brit. Zooph. ed. 2, 328. 
Flustra unicornis. Flem. Br. An. 536. 
Membranipora unicornis. Alder. North. Cat. Trans. Tynes F. C. 
III. 146. 
Zooecia bearing two avicularia at their bottom could not be de- 
monstrated. Rare. 
Locality: Barents-Sea. 75° 13',5 N. lat., 25° 21',5 E. long, 100 fath, 
Habitat: On Aseidians. 
16. Membranipora lineata. Linnaeus. 
SYNONYMS: 
Callopora lineata. d’Orb. Paleont. Frangaise Terr. Cretaces. 1850. 
334. 
Membranipora lineata. Busk. Br. Mus. Cat. II, 58. 
Alder. North. Cat. Trans. Tynes Field Club 
III. 143. 
