30 
MARINE FAUNA OF ST. ANDREWS. 
Genus Thuiaria, Fleming. 
Thuiaria thuja , L.; Hincks, Brit. H. Z. vol. i. p. 275. 
Common; chiefly frequenting dead valves of Cyprina , 
Pecten , and Tapes, as well as stones—shooting its long stems 
upwards (occasionally to the length of 14 inches) amidst 
masses of the tubes of Serpula, Thelepus, and other Annelids, 
and patches oiAlcyonium. In some examples a short secondary 
stem branches from the main trunk near the base. Parasitic 
upon the stems are numerous other corallines, such as Diphasia 
rosacea , which clothes anew the bare zigzag trunk with a more 
silky fringe than nature originally provided ; rough crusts of 
Cellepora or the spreading Alcyonium and A Icyonidium entirely 
surround it; while occasionally a long tunnel of Thelepus is 
glued from the base to the branching portion. Now and then 
it occurs in the stomach of the cod. 
Fam. 9. Plumulariidse. 
Genus Antennularia, Lamarck. 
Antennularia antennina, L.; Hincks, Brit. H. Z. vol. i. p. 280. 
From the deep water of the bay; common, but less so than 
the next species. Fine tufts reach a height of fully 11 inches. 
In a curious example a number of simple straight stems pro¬ 
ceed from the upper edge of a fragment of an old trunk. 
Antennularia ramosa , Lamarck; Hincks, Brit. H. Z. 
vol. i. p. 282. 
Common in deep water, whence it is usually brought by the 
fishermen’s lines. 
Genus Plumularia, Lamarck. 
Plumularia pinnata, L.; Hincks, Brit. H. Z. vol. i. 
p. 295. 
Frequent in deep water, and often reaching the height of 
7 inches. A tall variety is found in which no spines are present 
