686 DR. E. LoNNBERG ON the [June 19, 



In view of these considerations, it seems difficult to deny that 

 cases of inheritance of acquired characters have been brought 

 forward. It would appear at any rate to be a choice between this 

 Lamarckian interpretation and the view of Professor Weismann, 

 that these useful directions of variation have been produced by the 

 adaptive requirement, by means of selectional processes within 

 the germ. 



Notes. 



Exceptions found among Ungulates to ordinary slope on extensor surface of 

 ulna are as follows: — 



Oryx gazella. Oryxbeisa. Strepsiceroskudu. Oreascanna. Alcesmachlis. 

 Baphicerus campestris. Baphicerus melanotis. Ourebia nigricaudata. Ourebia 

 hastafa. Tetraccros quadricornis. Nesotragus moschatus. Cephalophus 

 grimmi, C. rufilatus, ft leacogastris, C. abyssinicus, ft dories. Pudua humilis. 

 Moschus moschiferus. Xenelapjhus antisiensis. Hydropotes inermis. Dor- 

 celaphus bezoarticus, D. americanus, D. hemionus. Ccrvuhis wamtjac, C. reevesi, 

 C. lachrymans. Capreoluscaprea. Elaphodusndchiaiius. Ccrvus alfredi, C. por- 

 eintes, C. axis, C. duvauccli, C. elupihus, C. dama, C. cashtnirianus. 



Also certain Chevrotains and Suidas noted. 



Be A. Ungulates in which an Inguinal Whorl is found. 



Bubalis caama. Bavgifcr tarandus. Cervicapra fuhorufula. Cervieapra 

 arundinum. Coins thomasi, ft buffbni. C. vardoni, ft leche. Equus hemionus. 

 Bos sondaicus, B. indicus. Ovis ophion, 0. amnion, 0. sairensis, 0. poli. Capua 

 pyrcnaica. Saiga tartarica (present in male, absent in iemale). Gazella 

 granti, G. mhorr. Antilocapra americaiw. Cvphalophis dorsalis. Cerius 

 kuhli, C. elaphus. Camclus bactriamts. Lama huanacus. 



BeB. Ungulates in which a Post-Humeral Whorl is found. 



Strcpsiceros kudu. Bar.gifer tarandus. Cobus leche. Eqiius hemionvs. 

 Equus burchelli (young). Bos sondaicus, B. depressicornis. Oris ophion, 

 0. ammon, 0. sairensis, 0. poli. Antilocapra americana. Dorcelaphws 

 americanus, I), dichoromus. Elaphnrus davidiavus. Lama huanacus. 



4. On the Structure and Anatomy of the Musk-Ox 

 (Ovibos moschatus). By Dr. Einar Lonnberg. 



[Eeceived April 25, 1900.] 



Contents. 



Sect. 1, The Development of the Horns, p. 687. 

 „ 2. Description of the Hoofs, p. 694. 

 „ 3. Description of the Skull, p. 695. 



„ 4. Comparison between the Skull of Ovibos and that of Budorcas, 

 p. 715. 



In further elucidation of the relationships of the Musk-ox, I 

 beg leave to offer the following remarks in continuation of those 

 read before the Society on February 20th last l . 



1 See P. Z. S. 1900, p. 142. 



