MICROCIONA. 53 



9. MICROCIONA ARMATA, Bow., ir, 129; in, PI. XXIII, 

 figs. 1724. 



Habitat. Shetland, 1864, Messrs. Peach and 

 Jeffreys (fide Bowerbank in litt. ad A. M. N.). 



10. MICROCIONA AMBIGUA, Bow. t u, 136; in, PI. XXV, 

 figs. 19. 



11. MICROCIONA JECUSCULUM, Bow. 



1866 Hymeniacidon jecusculum, Bow. n, 198. 



1874 Microciona jecusculum, Bow. in, 274, PL LXXXIII, 



figs. 1 6. 

 1870 Desmacidon jecusculum, Scliruidt. Spong. Atlant. Geb. 



p. 76. 

 1876 Microciona jecusculum, Carter. Ann. Nat. Hist., ser. 4, 



vol. xviii, p. 237. 



Habitat. Carter (1. c.) records this sponge as 

 dredged by the " Porcupine ' in 374 fathoms near 

 Cape St. Vincent (station 25), 1870, and near the 

 Faroe Islands (station 61), 1869, in 114 fathoms. 



12. MICROCIONA PLUMOSA (Montagu). 



1866 Microciona carnosa, Bow. n, 133. 



1866 Hymeniacidon plumosus, Bow. n, 195. 



1874 Microciona plumosa, Bow. in, 61, PL XXIV, figs. 713. 



1867 Pronax plumosa, Gray. Proc. Zool. Soc., p. 536. 



1870 Desmacidon plumosus, Schmidt. Spong. Atlant. Geb., 

 p. 76. 



Habitat. Westport Bay, Co. Mayo, N. 



