Anglo-Norman Islands. 361 



spond to those which Gosse designates by the names of G. 

 smaragdina, C. rhodopy'asina, C. chrysochlorina, and C. coral- 

 Una, according to the predominant colour. 



In the third cave 1 have also collected several specimens 

 of Alcyonium digitatum. In this same cave are found Tuhu- 

 laricB [T. indivisa, Hincks), which cover its roof with their 

 dense tufts. 



The Simple Ascidia are very generally diffused, Cynthia 

 rustica attains a very large size ; we tind further Ascidia 

 jproducta^ Ascidiella aspersa and A. scabra, Cynthia sulcatula, 

 and Mulgula arenosa, Aid. 



Upon the tunics of these different species are attached 

 numerous Compound Ascidia, such as Leptoclinum asperum 

 and L. durum, Amaroucium albicans and A. Nordmannij 

 Bryozoa, namely Crisia cornuta and C. denticulata. Lam., 

 Cellejjora pumicosa, Lam., Lepralia jhliacea, Ell. & Sol., Scru- 

 pocellaria scrupea, Busk, Mucronella Peachii, Johnst., Mem- 

 branipora pilosa, Lmn., &c., together with numerous Hydroids 

 (^Campanulariaij Sertularice, Plumularice). 



Among the Ascidians live numerous species of Vermes and 

 Crustacea. The Annelides are especially represented by 

 Nereis cultrifera and N. Dumerilii, Syllis arnica and S. diva- 

 ricata, I'rypanosyllis Krohnii, Grube, common Serpulce and 

 VermiliWy and a species of Filigrana. 



The Crustacea almost all belong to the Isopoda and Am- 

 phipoda. Among the latter I will cite Montagua monocaloides 

 and M. marina, Atylus bispinosus, Anonyx Edwardsii, and 

 Microdeutopus Websterii, Sp. B. ; Nicea Lubhockiana, Aora 

 gracilis, Fodocerus capillatus, Eximguia stillipes, Nordra. ; 

 and Ncenia tuberculosa, Sp. B. Among the Isopoda : — Lepto- 

 chelia Edwardsii, Faratanais forcipatus, Apseudes talpa, Jcera 

 Nordmamii, Janira maculosa, and, finally, a new form, which 

 I described last year in the ' Annales des Sciences Naturelles ' 

 under the name of Joiropsis brevicomis, Kcehl. 



I will further indicate Caprella kystrix, Kroy., Pycnogonum 

 littorale, and Ammothea longipes. 



I have already noticed the presence in the c&vesof yFJpophilus 

 Bonnairei and its larva. 



As to the MoUusca, they are represented by a few not very 

 interesting forms, such as Anomia ephippium, Linn., Modio~ 

 laria marmorata, Forbes, and AI. discors, Linn., Chiton dis- 

 crepans, Br., and C. Icevis, Mont., Alytilus edulis, Linn., var, 

 angulata, and Doris tuberculata, Cuv. 



