Zoology. ~ 125 
of which the common limpet at estes vulgata) ranges, giving a _— 
acter to the entire belt. Eac these sub-regions has its own charac 
teristic animals and plants. has the highest is constantly otiseatale 
ized by the presence of th riwinkle Littorina rudis, (and on our 
western shores, weenie neritoides,) along with the sea-weed Fucus 
canaliculatus. The se sub-region is marked by the sea-weed Lich- 
tna and the common ome (Mytilus edulis). In common with the 
third sub-region it oust always presents rocks thickly encrusted with 
tnacles; so that where our shores are steep, a broad w hite and, 
Pear, and the Pack are replaced by the gigantic sea-weeds known popu- 
larly as tangles (species of Laminaria, Alaria, &c.) among shies live 
myriads of peculiar forms of animals and lesser plants. enus 
cuna among shell-fish is especially characteristic of this ome, Tn 
sandy places, the Zostera or grass-wrack replaces the Laminaria. The 
Lawinantan ZONE extends to a depth of about fifteen fathoms, ee 
i its lowest part the greater sea-weeds are compara atively few, 
Nan? the prevailing plant is the curious coral-like vegetable aiid 
ulipore, ” 
From 15 to 50 or more fathoms we find a zone prolific in a 
Tms of Saital life, but from which conspicuous vegetables seem alm 
entirely me shed. The majority of its inhabitants sh sai 
ot ny of o pote: fishes belon 
ny plant like ay 8 abounding in it, the na sg Meee ypet 
se 
ies zones. When. they do so o they often eyenes ir mepee 
gives hee a a character. All recent researches, when scien- 
Ufically aha have confirmed ah classification Hs pope 
depth, When we have an apparent exception, as in the case of the 
ibmarine nae ta ‘of the Mull of Galloway, crease me ct Beechy 
Thompson, in pitt fan ot 
tpt faana Ms hat of the soralin zone, We 
