Anglo-Norman Islands. 237 



rium, Jolinst., may be collected in great abundance at the 

 Gr^ve d'Azettc, and some examples of Caminus osculosus, 

 Gr., at the Dog-Nest. Ilicrocionm armata, Bow., and 

 Hymeniacidon armatura^ Bow., are sometimes met with upon 

 P(scfe?i-shells ; the former species is more scarce and only lives 

 upon specimens brought up by the dredge. Halichondria 

 jianicea, Johnst., is a sponge easy to recognize, which covers 

 the rocks with broad green or yellowish expansions. Hijmeni- 

 acidon celata^ Bow,, occurs frequently between the lamella} 

 of empty oyster-shells. Hymeniacidon caruncida, Bow., H. 

 mamnieataj iiow.jisodicfyafucorum, Bow., I. parasitica, Bow., 

 and /. si7mdans, Bow., are all common species at Jersey. 

 Isodictya cinerea is much more rare. Another generally 

 distributed sponge forms thin layers, which are difKcult to 

 detach, upon the surface of the rocks ; it is easily recognizable 

 by its fine rose-colour, and is perhaps identical with Verongia 

 rosea, found by Barrois at Saint-Waast. Lastly, I doubtfully 

 reiei' to Bysideafragilis, Bow., some sponges which live upon 

 certain specimens of Pisa Gibhsii and Inachus dorliynchus. 



CCELENTEEATA. 



There is nothhig peculiar in the Actinian fauna of Jersey, 

 and the types met with are the same that are found upon all 

 our coasts. Aneinonia sulcata, Penn., and Actinia equina, 

 Linn., are very generally distributed. At Elizabeth Castle 

 the rocks are covered with Actinia equina, all the speci- 

 mens of which are of a uniform blackish-olive colour. Tealia 

 crassicornis, Th., is often associated with the two prece- 

 ding species, but always subordinate to them in number. 

 Bunodes gemmacea, Gosse, occurs in abundance in the little 

 shallow pools of whicli the bottom is occupied by gravel. 

 In the same stations Sagartia parasitica. Couch, occurs 

 attached to the shells in which the hermit-crabs take shelter, 

 and the margins of which always bear a rich garniture of 

 Hydractinia echinata and Sagartia hellis, Gosse, which is also 

 sometimes met with fixed upon the rocks. We also find, but 

 rather rarely, Sagartia troglodytes, Gosse. I once found two 

 specimens of a small white Actinia attached to the rocks 

 at Elizabeth Castle, which 1 have not been able to dis- 

 tinguish from Sagartia sphyi-odeta, var. Candida of Gosse. 

 Edicardsia callimorplia^ Gosse, is tolerably common in slightly 

 muddy gravels, and I have found several specimens of it at 

 Elizabeth Castle. 



Lastly, to conclude the enumeration of the Actiniae of 

 Jersey, 1 will mention Adamsia palliaia, Bodd., which never 



