OF THE FIRTH OF FORTH. 7 
and various lists and notices by Professors Allman, Forbes, 
Jameson, Drs Fleming, M‘Bain, George Johnston, F. E. 
Schulze, and others. 
In our own investigations, comprising shore-collecting and 
dredging from fishing boats and steamers, extending over 
several years, we have taken the great majority of the species 
of Hydroids recorded as having been found in the Firth of 
Forth, and have been fortunate enough to discover several 
which have not hitherto been met with in this area. Our 
most notable deficiencies are among the minute Athecata 
discovered by Wright. 
HYDROIDA. 
I. ATHECATA— 
CLAVIDA. 
Clava multicornis (Forsk.). 
Firth of Forth (7. S. W.); Kincardine to 
Fifeness (/6.); Kincardine, 2 fathoms 
(Th.) ; Firth of Forth (G. J. A.). 
This species is common between tide 
marks on various parts of the shore. We 
have taken it at Joppa, at Wardie, and at 
South Queensferry. 
It is the Clava repens of Wright (Proc. 
Roy. Phys. Soc., EHdin., 1857; Ed. New 
Phil. Jour., July 1857). 
C. squamata (Miill.). 
Queensferry on Fucus vesiculosus (T. S.W.); 
Craigflower (@. J. A.). 
In Dr Wright’s paper on Clava this 
species figures as C. membranacea (Ld. 
New Phil. Jour., July 1857). 
C. nodosa (T. S. Wright). 
Queensferry and Largo, on Delesseria san- 
guinea (T. S. W.). 
This species was first described in Proc. 
Roy. Phys. Soc., Hdin., for 1862. 
Turris neglecta (Lesson). 
Queensferry (7. S. W.). 
