501 



perforate. Eight pairs of ribs directly join the sternum, which consists of seven bones, with 

 the xiphoid cartilage. The transverse processes of the last two lumbar and first sacral ver- 

 tebrae are articulated to one another. The upper costa of the scapula has a wide and deep 

 notch. The femur has a third trochanter. 



Presented by Sir Stamford Raffles, P.Z.S. 



2867. The skull of the Malayan Tapir (Tapirus indicw). 



The paroccipitals are compressed and slightly incurred : they are strengthened by a long 

 post-tympanic process, developed from the squamosal and articulated to the fore part of 

 the base of the paroccipital, so as to circumscribe a space occupied by the true mastoid, 

 which is confluent with the petrosal. One or two vacuities are left in this space for the 

 exit of veins. The post-glenoid process is much developed. The base of the pterygoid pro- 

 cess is perforated lengthwise by the ectocarotid : the apex is slightly recurved : it unites with 

 the palatine by a squamous suture. The entopterygoids are thin, small, curved lamellse 

 applied to the inner side of the base of the pterygoid processes, and uniting with each other 

 below, and clear of, the presphenoid. The major part of the palatine enters into the forma- 

 tion of the large oblique hinder aperture of the nasal passages : the smaller anterior division 

 completes the bony palate which terminates behind between the first and second true molar. 

 The last molars have not emerged from their formative alveoli. The lacrymal canal commences 

 by two distinct orifices. The bases of the nasal bones are deeply grooved, and articulate with 

 the frontals parallel with the back part of the orbit. There is no superorbital foramen or 

 canal. The premaxillaries terminate behind at a considerable distance from the elevated 

 nasals. 



Presented by Sir Stamford Raffles, P.Z.S. 



The following, to No. 2878 inclusive, are parts of the same skeleton of the Malayan 

 Tapir (Tapirus indicvs) : 



Presented by Sir Stamford Raffles, P.Z.S. 



2868. The atlas. 



The base of the transverse process is twice perforated by the vertebral artery, the anterior 

 perforation opening upon the groove which leads to the foramen in the neural arch common 

 to the vertebral artery and first spinal nerve. 



2869. An anterior dorsal vertebra. 



The base of the neural arch is perforated on each side by the spinal nerve. The neural 

 spine is strong and of considerable length. The fore part of the centrum is convex, the bind 

 part concave. 



2870. A left dorsal rib. 



