274 PROF. ROLLESTON ON THE DOMESTIC PIG 



VIII. A Memoir by Prof. L. Biitimeyer, " Xeue Beitrage zur Kenntniss des Torfschweins," 

 in the ' Verhandlungen der naturforschenden Gesellschaft in Basel,' iv. 1, 1864, 

 pp. 132-186. 

 IX. The Inaugural Dissertation " Zur Kenntniss des Torfschweins," by Johann "Wil- 

 helm Sclmtz, Berlin, May 4, 1868, referred to by Mr. Darwin in ' Animals and 

 Plants under Domestication,' vol. i. p. 71, ed. 2nd, 1875. 

 X. A memoir by Prof. B. Hartmann on the " Verbreitung der in nordostlichen Afrika 

 wildlebenden Saugethiere," in the ' Zeitschrift fur Erdkunde zur Berlin,' Bd. iii. 

 1868, in which (at pp. 349-352) there is an account of S. sennaariensis, which 

 the Professor and Dr. Schutz consider to be the parent stock of S. scrofa, 

 var. palustris. 

 XI. Letter from Dr. A. B. Meyer, of the Boyal Zoological Museum, Dresden. 

 XII. Letter from Professor R. Hartmann, of Berlin. 



XIII. Letter from Professor Pitzinger, of Vienna. 



XIV. Letter and drawing from Professor Busk, of London. 



XV. Letter from the Bev. 0. Spencer Bubb, late Missionary in Borneo. 

 XVI. Letter from G. Dobson, Esq., B.A., M.B., P.L.S. 



A comparison of the skull of the old male of /§. celebensis lent me by Dr. A. B. Meyer, 

 and the measurements of it given below,' with the skulls of S. andamanensis and with the 

 descriptions of the skull of 8. verrucosus given by Nathusius, Biitimeyer, and Miiller and 

 Schlegel, will show that while agreeing with these skulls in general contour and propor- 

 tions it is intermediate between them in actual size. The highest point in the sagittal 

 contour is, as in the Suidcs above named, a little way anterior to the upper edge of the 

 occipital squama ; the transverse arc from one orbital process of the frontal to the other is 

 even more convex than in any other Asiatic Pig ; the zygomatic arch is short, deep, and 

 roughly sculptured ; the lower canine's alveolus reaches back to a prominent external pro- 

 tuberance in the plane of the anterior lobe of the third molar, a point further backwards 

 than it usually attains to. The posterior lobes of the third molars, though consisting 

 of 4-5 cusps, have not the great antero-posterior length relatively to the rest of the tooth 

 which we find in specimens of the same sex of S. cristalus. 



As in S. verrucosus, the bony palate is nearer to the basicranial bones than in most 

 other Suidce. 



Its measurements (being those adopted by Professor Biitimeyer, ' Verhandlungen 

 Gesellschaft Basel,' 1864, p. 163, from Nathusius, ' Abbildungen von Schweineschadeln,' 

 1864, p. 6) are as follows : — 



Measurement of Skull of Sus celebensis. 



millim. inches. 



Length from foramen magnum to tip of intermaxillaries 281 = 103 



Length of occipital crest to tip of intermaxillaries 325 = 12.8 



Length from occipital crest to tip of nasals 320 = 12 - 55 



Length of nasals 154 = 6 - l 



Anterior part of frontal and sagittal sutures 56 = 2*2 



