22 



Gastuochana rugulosa. Gast. teald oblongd, albklil, slriatd, ru- 

 gulosd, striis anticis prope marginem hiantem confertis, acutis ; 

 hiatu longissimo : long. 8, lat. 0*3, all. ()"4 poll. 



Hab. ad Insulas Gallapagos et apuci Insulam Lord Hood's dictani. 



Found with the last.— G. B. S. 



Gastroch^na UYALiNA. Gdst. tcstd oviiU, ulb'idd , hijulind, Itevi, 

 dorso longitudinaliter striato ; latere anlko brevi ; hiatu duos 

 trienles testa aquante : long. 0'55, lat. 0"25, alt. 0"3 poll. 



Hab. ad Insulam Lord Hood's dictam. 



Found with the two last. — G. B. S. 



A Note was read from Mr. Gray, giving an account of the arrival 

 in England of two living specimens of Cerithium urmalum, vvhich had 

 been obtained at the Mauritius, and liad been brought from thence in 

 a dry state. That the inhabitants of land Shells will remain alive 

 without moisture for many months is well known : he had had occa- 

 sion to observe that various marine Mullusca will also retain life in a 

 state of torpidity for a considerable time, some facts in illustration of 

 which he had communicated at a recent Meeting of the Society (Pro-- 

 ceedings, Fart I., p. 116.): the present instance included, however, 

 a torpidity of so long a continuance as to induce him to mention it 

 particularly. The animal, though deeply contracted within the shell, 

 was apparently healthy, and beautifully coloured. It emitted a con- 

 siderable quantity of bright green fluid, which stained paper of a grass 

 green colour : it also coloured two or three ounces of pure water. 

 This green solution, after standing for twelve hours in a stoppered 

 bottle, became purplish at the upper part ; but the paper retained its 

 green colour though exposed to the atmosphere. 



The Secretary mentioned an instance of the arrival in this country 

 of a living Cerithium Telescopium, Brug., brought from Calcutta, in 

 company with some small Paludina:, which also reached England 

 alive : these MoUusca were, however, kept in sea water frequently 

 changed. The Cerithium was placed by Mr. G. B. Sowerby, for dissec- 

 tion, in the hands of the Rev. M. J. Berkeley and G. H. Hoffman, 

 Esq., who have prepared a paper on its anatomy for the forthcoming 

 No. of the ' Zoological Journal' : it will be illustrated by a series of 

 figures, which were exhibited to the Meeting. It is worthy of re- 

 mark, that the spirit in which this animal was immersed for the pur- 

 pose of killing it, and in which it was kept for some weeks, became of 

 a dark verdigris colour. 



Dr. Weatherhead exhibited two young OrriMorhynchi preserved 

 in spirit, which he had recently received from New Holland, and 

 stated his intention of presenting one of them to the Society's Mu- 

 seum. The smallest of them is about two inches in length ; the 

 largest about four. Both are destitute of hairj and in both the 

 eye-lids are closed. In the smaller one there is a vestige of an 

 umbilical slit. 



