HALICHONDRIA. 99 



great a depth as I remember myself to have found it. 

 " Halichondria panicea from the Rev. A. M. Nor- 

 man, parasitical on small branching zoophytes from 

 the Durham coast in 20 35 fathoms ; remarkable for 

 being of a milk-white colour ; the organic structures 

 all as usual." 



10. HALICHONDRIA GLABRA, Bow., n, 232 ; in, 101, 353, 

 PI. XLI, figs. 13. 



1870 Amorphina glabra, Schmidt. Spong. Atlant. Geb., 

 p. 77. 



11. HALICHONDRIA ANGULATA, Bow., n, 233 ; in, PI. 

 XLI, figs. 48. 



1867 Orina angulata, Gray. Proc. Zool. Soc., p. 540. 



12. HALICHONDRIA DISTORTA, Bow., n, 240 ; in, PI. XLII. 



1870 Amorpliina distorta, Schmidt. Spong. Atlant. Geb., 

 p. 77. 



13. HALICHONDRIA EDUSA, Boiv., in, 201 ; PI. LXXIII, 



figs. 6 9. 



14. HALICHONDRIA AMBIGUA, .Bow., in, 213 ; PI. LXXIY, 



figs. 14, 15. 



15. HALICHONDRIA COUCHII, Bow., in, 203 ; PI. LXXIII, 



figs. 1215. 



