10 Salter—Budleigh Salterton Pebble-Bed. 
Silurian Plants (?) from the Pebbles at Budleigh Salterton.— 
As in our memoir in the Geological Society’s Journal there 
will be no figures of these Alge (they are doubtful things at the 
best, but appear to be singularly characteristic of certain Silu- 
rian beds in Europe and America), I give them here; and they 
may serve to stimulate collectors to pay attention to these 
obscure fossils until we know more of them. 
M. Rouault, the indefatigable explorer of the Normandy 
palwozoic strata, has described a dozen species -of two distinct 
genera of Fucoids from thence. One group, which he calls 
Vexillum, has palmate fronds, with a stem and a lateral rib ; 
and this may well belong to the same group of organic bodies 
Fig. 2. Vexillum; a fossil Fucoid from the pebbles at Budleigh Salterton. Nat. size. 
as the celebrated Cauda-galli or ‘cock-tails’ of American 
geology; the name is a homely one, but is expressive enough. 
No vegetable matter accompanies these casts of fossils, which 
were probably allied to Pavonia or Acetabularia (if mdeed 
they were vegetables at all); there is a fringed edge to some 
of the Cauda-galli casts, which favours this reference; and 
with regard to Vezxillum, M. Rouault has described a regular 
transverse, as well as longitudinal, ridging in all his species. 
Dedalus of that author appears to be a group of irregularly 
crisped and curled fronds, without a midrib; putting us in 
mind of the Ulve and Enteromorphe of our sandy shores. I 
confess I am in doubt about these fossils; they seem so like 
congregrated ripple-marks, confused with surf-ripples, and 
perforated by worms. Crowded over one another in all direc- 
tions, and occupying great tracts of surface, they are at all 
events worth notice, and may be truly, as their describer sup- 
poses, marine vegetables. 
