730 DR. CHALMERS MITCHELL ON [June 15, 



Plate LXXV. 

 G-ennadas parvus Sp. Bate. 

 Fig. 1. Petasma, right side. X 17. 



Getinadas scutatus Bouvier. 

 Fig. 2. Petasma, left side. X 25. 



Gennadas intermedius Sp. Bate. 

 Fig. 3. Petasma, right side. X 16. 



Gennadas calmani, sp. n. 



Fig. 4. Petasma, left side. X 19. 

 5. Thelycum. X 1h 



Gennadas houvieri, sp. n. 



Fig. 6. Thelj'cum, showing spermatophores in situ. X 20. 

 7. Thelycum of another specimen. X 20. 



6. Notes on a Young Walrus (Odobcenus rosmarus) recently 

 living in the Society's Gardens. By P. Chalmers 

 Mitchell, M.A., D.Sc, Hon. LL.D., F.R.S., Secretary 

 to the Society. 



[Received June 11, 1909.] 



(Plate LXXYI. *) 



The Society received on Nov. 23, 1908, two young examples of 

 the Atlantic Walrus, Odohcenus rosmarus. The animals came 

 from Franz Josef Land and were cubs born in the spring of the 

 same year, and probably, therefore, under nine months old. It 

 was stated that whilst the whaling ship, which brought them 

 from the Arctic region, was in harbour, the animals were allowed 

 to go to the bottom, ropes being tied round their shoulders to 

 prevent their escape, and the sailors were of the opinion that they 

 fed themselves there although they had no views as to what the 

 food was. On the other hand, they had been fed on the voyage 

 until their arrival in England, on whale's blubber. On their 

 arrival at the Gardens, the only food that they would take at 

 first, and whiclt afterwards they appeared to prefer, was horses' 

 fat. They took this from the hand in small pieces, and as they 

 sucked it in, made a slobbering sound with their protruded lips. 

 Whatever food they took, either from the hand, or from the 

 ground, or from a bucket mixed with salt and water, they always 

 sucked in small pieces, and would take only when it was soft 

 and slippery. As fat is not a sufficient diet, every effort was 

 made to get them to take something more nutritious. After a 

 good deal of persuasion they were induced to take fresh fish, 

 cleared of bones and cut into strips ; they preferred cod to haddock 

 or whiting, and would not touch filleted herring. They ate 

 greedily the soft viscera of cod, such as liver and roe, and portions 

 of the intestines. They also took mussels and scallops removed 



* For explanation of the Plate see p. 732. 



