BRITISH ASSOCIATION. 243 



The following is a list of the species which I have hitherto obtained 

 on the Dublin coast : — 



ORDER DISCOPHORA 



STTB-OEDEE I. STEGANOPHTHALMATA. 



Rhizostoma pulmo. 

 Cassiopcea lunulata. 

 Aurelia aurita. 

 Anrelia campannlata. 



Cyanea capillata. 

 Cyanea Lamarckii. 

 Chrysaora hyoscella. 



STTB-OEDEE II. GYMNOPHTHALMATA. 



Stomobrachium octocostatum. | Equorea formosa (n. «.). 

 Family Geryoniadce. 



Thanmantias typica (n. s.). 



Geryonopsis delicatula. 

 Thamnantias neglecta (w. s.). 

 Thanmantias Thompsoni. 



Thanmantias inconspicna. 

 Thaumantias lucifera. 



Family Sarsiadce. 



Sarsia tubulosa. 

 Bougainvillea Britannica. 

 Bougainvillea dinema (n. s.). 



Diplonema Islandica (n. g. and «.). 

 StCenstrupia Owenii (n. s.). 



ORDER SIPHOSTOPHORA. 



Agalmopsis elegans. 



ORDER CTENOPHORA. 



Beroe cncumis. 

 Cydippe pomiformis. 



Cydippe pileus. 

 Knemia ]S"orvegica. 



Twenty-five species are here enumerated. The above, for a local 

 list, can by no means be regarded as scanty, for Professor E. Eorbes, 

 after careful exploration of the Egean, observed but eighteen species in 

 that region. Every British species of Steganophthalmata, except Pelagia, 

 is here mentioned. The Cassiopcea lunulata is given on the authority of 

 my friend, Mr. E. Percival "Wright ; with this exception all the species 

 enumerated in the above list have been observed by myself. I have 

 captured, in Belfast Bay, two species of Thaumantias not found on the 

 Dublin coast, namely, T. lineata, and a new species, T. Pattersonii. 



I shall reserve my remarks on the Steganophthalmata for a future 

 occasion, and for the present confine myself to the naked-eyed forms 

 alone. Since the publication of Professor E. Eorbes' s monograph, about 

 twenty additional species of these beautiful animals have been found on 

 the British shores. Agassiz has studied their distribution on the coast 



