386 Mr. E. L, Layard's Rambles in Ceylon. 



animals will be in constant motion ; to remedy this I suggest 

 that around each tank should be placed glass cases or tables 

 containing specimens of all living in the tank and properly 

 named ; this^ I think, would enable the public to identify the 

 species, it would also instruct and amuse; by this plan you 

 might also point out the burrowing bivalves, which, although in 

 the tank, would be seldom visible. I believe the public exhibi- 

 tion of Marine Vivaria will bring them into almost universal 

 use as ornaments to the drawing-room or for purposes of in- 

 struction in Museums, Literary Institutions, and perhaps even 

 in the school-room. Should this be the case, the labours of sea- 

 side naturalists will be called into requisition, and a better class 

 will enter into the supplying specimens. 



I will now give a list of some of the more easily obtainable 

 species to place in a vivarium. I am very fortunate in obtaining 

 species here, and it is but seldom that I have not also some 

 rarity in my possession. 



Of shells I recommend species of Pholas, Scrobicularia, Donax, 

 Tapes, Cardium, Mytilus, Crenella, Tellina, Nucula, Pectunculus, 

 Pecten, Chiton, Patella, Acmea, Pileopsis, Fissurella, Puncturella, 

 Emarginula, Haliotis, Trockus, Phasianella, Littorina, Lacuna, 

 Rissoa, Trvncatella, Apporhais, Cerithium, Scalaris, Natica, Velu- 

 tina, Laminaria, Murecc, Purpura, Nassa, Buccinum, Fusus, Tro- 

 phon, Mangelia, Cypraea, Ovula, Cylichna, Amphisphyra, Toma- 

 tella, Akera, Bulla, Scaphander, Philine, Aplysia, Pleurobranchus. 



Of Echinodermata the most showy are — Solaster, Uraster, Pal- 

 mipes, Comatula, Asterina, Asterias, Cribella, Ophiocoma, Echinus 

 and Spatangus. 



Of Crustacea, all the species ; as also the Cirrhipeda and An- 

 nelides. 



Of sea plants I strongly recommend Fucus serratus as a useful, 

 and the whole of the Rhodosperms as lovely additions, and some 

 few of the Melanosperms ; but the colours of the Chlorosperms or 

 green sea-weeds are so fugitive, that it is with regret I cannot 

 recommend a family of which the beautiful Bryopsis is a member. 

 I am. Gentlemen, yours very obediently, 



William Thompson. 



XXXVI. — Rambles in Ceylon. By Edgar Leopold LAYARD,Esq. 

 To Richard Taylor, Esq. 



[Continued from p. 314.] ., . 



Anarajahpoora, Wednesday, 30th April, 1852. 



My dear Sir, — Here I am, in the City of the Kings, now the abode 



of ruin and desolation : torrents of rain are falling day and night : a 



rushing mountain stream, called the Malwatteoya, bounds our walks, 



i 



