374 ( Scientific Intelligence. — Zoology. 



28. Terrestrial Shell Animals may he carried alive great 

 distances. — The Macroceramus signatus was sent me by a 

 friend who has taken great pains to put me in possession of the 

 mollusca of the Virgin Islands, that I may examine them for 

 publication. I find that the terrestrial testaceous mollusca will 

 travel to a very great distance in a living state, even in the tro- 

 pics, if packed in saw-dust. I have also lately dispatched tin 

 boxes perforated on all sides, and filled with wet moss and mud, 

 in which I hope soon to obtain alive the aquatic mollusca which 

 swarm in the waters of the mighty Oronooko, and the canals 

 and ponds of the neighbouring colonies. — L. Guilding. Zool. 

 Journal, No. xiv. 



29. Formation of the shell of the Cyproea. — Mr Samuel 

 Stutchbury, who had an opportunity of examining many indi- 

 viduals of C. Tigris at the Pearl Islands, informed me that 

 those cowries lived there in very shallow water, and always under 

 rolled masses of madrepore. They never were to be seen ex- 

 posed to the sun's rays. On lifting one of these masses, a tiger 

 cowry was generally observed with its shell entirely covered by 

 the large mantle, which was mottled with dark colours, the in- 

 tensity of which the animal seemed to have the power of chang- 

 ing, for the colours varied in the same light in the same me- 

 dium, after the manner of the spots on the Cephalopodous Mol- 

 lusca, or, to use a more familiar instance, somewhat in the same 

 way that the hues of a turkey's wattle vary. On touching the 

 mantle, it was immediately withdrawn within the shell, which 

 became exposed in all its brilliancy. So firmly did the soft 

 parts adhere to the shell, that, in no instance (and the experi- 

 ment was often made), did Mr Stutchbury succeed in extract- 

 ing them by force, either during life or before decomposition 

 took place. He was obliged to let the animal die, and suf- 

 fer the soft parts to decay, in order to remove them — Zool. 

 Journ. No. xiv. 



30. On the Tape-Worms J'ound in Water hy Lhmatis. 

 — In an excursion with the late Eysenhandt, in search of 

 water-plants, says Dr Baer, we sailed up the Pregel, and land- 

 ed on the north bank of the Frishc Haaf, at Margen, nine 

 miles from Konigsberg. The first object brought to me was a 

 tape-worm : we searched further, and soon found nearly a do- 



