Anglo-Norman Islands. 233 



surrounded by rocks clothed with an abundant covering of 

 Alga3, often enclosing small natural grottos, which give shelter 

 to interesting animals. At certain points, where the ground 

 is sloping, little streams are produced, carrying off the excess 

 of water from the higher parts, and it is in these streams that 

 we can make the best collections of Bryozoa, Compound 

 Ascidia, Hydroids, and some kinds of Sponges ; near the 

 banks the current is less rapid, and interesting Annelides may 

 be collected under stones (such as Lagisca propinqua, Polynoe 

 squamata^ Phyllodoce laminosa, Nephthys longisetosa^ Aom'a 

 Jbliacea, Nereis Marioni^ &c.). Certain stations, such as the 

 northern margin of the rock ^' La Ronde," where Tethya 

 lyncurium is abundant, the neighbourhood of the rock " Pic- 

 Triple," the vicinity of La Mothe, and the Sambue, deserve 

 to be particularly indicated. It is near La Mothe that I 

 captured several specimens of a very rare marine Heraipterous 

 insect, JEpopliihis Bonnaireij which is associated with a 

 beetle, ^pus Rohinn. 



Following the Grbve d'Azette comes St. Clement's Bay, 

 the general aspect of which is the same as that of the Gr^ve 

 d'Azette ; but the rocks, being more exposed to the winds, 

 are less covered with Alga3, and the pools which are formed 

 at low water are not so numerous as in the former locality. 

 In St. Clement's Bay I have collected nearly all the species 

 which I found on the GrJ^ve d'Azette, but at the cost of more 

 laborious researches. On the whole the fauna is rather poor. 



The next region, on the contrary, is much richer. It is 

 the triangular space left uncovered at low water, the apex of 

 which is La Rocque, while the base extends from the Con- 

 chi^re to well beyond Seymour Point. The region of which 

 the exploration was especially profitable to me is comprised 

 between La Rocque, Seymour Point, and the tower of the same 

 name, as also between the last and Karam<5, 



At this point there is, in fact, a thick layer of mud, partly ' 

 covered with Zosterce, in which live a certain number of 

 fossorial Crustacea which hollow out burrows in it [Callta- 

 nassa, Gehuiy and Axius), as well as many interesting worms 

 belonging to the genera Valencia^ Marphysa^ Clymene^ Petalo- 

 proctus, Phascolosoma^ &c. In those parts which are not 

 muddy the fauna is nearly the same as on the Gr^ve 

 d'Azette; some species, however, appear more abundantly than 

 at other points, such as P ortunus p)uber and P. ptusillus, Pisa 

 tetraodon, Maia squinadoj Xantho rivulosa, Pagurus, &c. 

 The Echinodermata are represented by numerous specimens 

 of Ophiothrix fragilis and a few of Asteria,s glacia.Us and 

 CrihreUa oculata ; Mr. Sinel has found one or two Holo- 

 Ami. & Mag. N. Hist. Ser. 5. Vol. xviii. 16 



