Linnaah Society. 309 



the epiglottis to the tip, and 5 lines broad. Its dorsal surface was 

 covered with small papillae, and at the posterior part were three Large 

 or circumvallated papillae, arranged as the points of the letter V. On 

 the under surface is a curious body, 7 lines long and '.] wide, the tip 

 of which is free, flat and pectinated, the rest free at the sides and at- 

 tached in the middle. From the form, position and size of this singular 

 organ, one cannot help conjecturing that the pectinated end may act 

 as a brush to free the inferior incisor teeth from adherent particles of 

 the insect food on which the animal subsists. 



The submaxillary and parotid glands were very large, particularly 

 the former. 



The masseter and temporal muscles were largely developed, and 

 the whole muscles of the upper extremity very powerful. 



The cerebral hemispheres were large, and extending some way 

 back over the cerebellum, but their surface was remarkably smo( th 

 and almost free from convolutions, resembling in this respect the 

 brain of Cheiroptera, to which order the Lemurs present several 

 points of affinity. 



LINN^SAN SOCIETY. 



January 17th, 1854. — Robert Brown, Esq., V.P., in the Chair. 



Read a letter from David Moore, Esq., A.L.S., of the Botanic 

 Garden, Glasnevin, near Dublin, addressed to James Yates, Esq., 

 F.L.S., &c. " On the introduction of Anacharis Alsinastrum, Bab. 

 into Ireland." 



" It is rather remarkable," Mr. Moore observes, " that it should 

 have been noticed in England and in Ireland about the same time. I 

 am not perfectly certain now, but I think it was in the early part of 

 1842 I first saw tbe plant growing in a small pond in the garden of 

 Isaac M. D'Olier, Esq., of Booterstown, near Dublin. That gentle- 

 man has been long known for his zeal in horticultural pursuits, as 

 well as for his fine collection of exotic plants, which he has been in 

 the habit of getting from various parts of England, as well as from 

 the continent, along with some of which he considers the Anacharis 

 was introduced to his collection, though he has no knowledge of its 

 being so. At the time stated, Mr. D'Olier acted as Chairman of the 

 Committee of Botany for the Royal Dublin Society, which caused 

 me to have frequent official intercourse with him, and for which 

 purpose I occasionally went to Booterstown. In the centre of his 

 garden, where a number of gold and silver fish were kept in a small 

 pond, we first noticed the Anacharis. I did not then know the 

 plant, further than that it was not a British species, and brought 

 some of it to cultivate in the Botanic Garden, where it was placed 

 in an earthenware crock and put in the pond. Little more was 

 thought about it, until the late Mr. Macauley brought it from the 

 pond in Mr. D'Olier's garden to the College garden, about the time 

 inquiry was awakened respecting it in England. My foreman then 

 told me there was plenty of it growing in our pond, which I had not 



