COLLECTING ANIMALS. 299 



to one or other of the jars. The plants often bear 

 the more delicate Zoophytes, as Coryne, Sertularia, 

 Camjmmdaria^ &c., growing parasitically upon them ; 

 and some interesting Sponges, as Grantia compressa 

 and G. ciliata. But more generally the sponges are 

 found incrusting the surface of the rocks in the 

 darkest places, especially on the sides of caverns, 

 intermixed with many species of the Polyzoa. 



The Sea- Anemones [Actinia, &c.) adhere to rocks ; 

 the common smooth species [A. mesemhryanthemum) 

 often high up, exposed to the air; but the rarer kinds 

 generally in the sheltered crannies and basins, in 

 gravelly fissures, or on the under surface of stones. 

 They must be carefully dislodged by inserting the 

 finger-nail beneath the base, and gradually shoving 

 them ofi"; but those sorts that live in holes must be 

 chiselled out. 



Many of the Star-fishes, Sea-Urchins, and Sea- 

 Cucumbers are to be procured by tm-ning over loose 

 stones at the lowest tide-level; various species of 

 Annelides haunt the same places, and some of these 

 are of surpassing beauty. Many curious kinds of 

 Crabs and other Crustacea, too, and in spring the 

 elegant Xudibranch Mollusca, reward the labour of 

 stone-turning. 



The imivalve Mollusca crawl freely over the sur- 

 face of the rocks, or roam amid the umbrageous 

 foliage of the weeds that fringe the clear pools ; 

 whither also many of the lithe and slender worms, 

 and the swimming Crustacea, as the Prawns and 

 their allies, resort. Some of the Bivalve Mollusca 

 buiTOW into the solid rock itself, and the Acorn Bar- 



