511 



Oz. A v. 



30. Extensor (secundi) internodii pollicis, 0-34 



Inserted into the ungual phalanx of pollex. 



31. Supinator radii brevis, 0-81 



32. Pronator radii teres, 1*61 



33. Flexor carpi radialis, 1-03 



34. Palmaris longus, 1*60 



35. Flexor carpi ulnaris, 1*42 



36. Flexor digitorum sublimis, 



37. Flexor digitorum profundus, 



38. Flexor pollicis longus, 



Terminate in a common tendon, which is 

 distributed to the ungual phalanges of the 

 five fingers ; and the upper portion of the 

 common tendon, corresponding to that of 

 the flexor sublimis, sends a separate thin 

 slip to the index finger, which slip lies above 

 the index branch of the common tendon. 



8-40 



39. Pronator quadratus, 0*43 



Arises from the lower third of the ulna, and is inserted into the lower 

 fourth of the radius. 



The Kev. Samuel Haughton, M. D., Fellow of Trinity College, 

 Dublin, read the following paper : — 



Notes on Animal Mechanics. 



~No. XV.— On the Muscular Anatomy oe the Otter {Lutra vulgaris). 



In March, 1865, I dissected a very fine male Otter, which had lived ten 

 years in the Zoological Gardens of Dublin, and was well known to all 

 the frequenters of those Gardens, from his playful and docile habits. 

 He died of miliary tubercle, accompanied by pneumonic congestion of 

 both lungs ; and his right auricle and ventricle, with the two cavse and 

 hepatic vein, were filled with clotted blood, the result of the pulmonary 

 obstruction. 



This beautiful animal was originally presented to the Dublin Gar- 

 dens'by Dr. Home, of Ballinasloe, on the 8th of March, 1855, and died 

 on the 27th of February, 1865. 



The Council of the Zoological Society have made many attempts to 

 rear young Otters, but their exertions have seldom been rewarded Avith 

 success, owing to the extreme difficulty of procuring suitable food ; for 

 the Otter, although aquatic and piscivorous in its habits, is nursed on 

 mother's milk, in a dry warm nest, for a longer period than most carni- 

 vorous animals. As the habits of the Otter in this country, in its wild 

 state, are but little known, I make no apology for inserting in this place 

 the following account of the Lutra vulgaris, prefatory to my description 

 of its muscles — an account for which I am indebted to Mr. Robert 

 Montgomery, the Secretary of the Royal Zoological Society of Ireland, 

 who has had many opportunities of studying its habits in a state of 

 nature. I can myself bear testimony to the fact, that when cray fish 



