76 



R. J. Anderson, 



A.-P. Tr. Bas. For. M. For to Sup. D. bet. Bet. Length Cond. B 

 Angle Cond. 



Lemnr Varius. 3 cm 3 1.7 1.3 2.5 0.8 1.-5 1.1 0.3 



Central cerebellar eminence marked. Lateral convex. L. Varius (2) nearly 

 same. In L. Varius (3) distance between Condyles 0.4 in front, 

 liemur Catta Foramen Magnum. A.-P. 0.9. Trans 1.2 m (2). .Juv. Foramen is round. 

 Lepidolemur microdon. Foramen 1.0 round. Basilar (?). Condyle 1.0 by 0.5. 

 Galeopithecus volans. Condyles 0.5 aparts 0.7 behind. Sutures obliterated. 

 Galago. A.-P. 2.1. Tr. 1.9. Basilar 1.0. Foramen 0.8. Galago (2). Basilar 0.6. 



Foramen 0.7 ant posterior. 

 Tarsius sp. Foramen 0.7. Basilar. Condyles 0.2 in front. 0.6 behind. 

 Prosimia mongoz. Basilar 1.1. Foramen 1.1. Condyles. 0.6 in front, dist. 



beh. 1.5 ccm. 

 Propithecus Edwardsii. Basilar 1.2, Foramen 1.3. By (1.4) broad. 

 Loris gracilis. Shortest 1.3. Transverse greater. Foramen to Summit 1.2. 

 Indris brevicaudatus. Basilar 1.5. B'oramen 1.2. Foramen to Summit 4.2. 



Lemur Rudugoz. Trans Diam equal to antero - posterior. 

 A ridge is continued down along the occipital temporal 

 suture from the curved line a second runs forward and 

 goes to post root of Zygom. 



Hapale Oedipus. Anti.-Post. 2.2 cm. Trans 2.1. 

 Basilar 0.8 cm. Foramen 0.7. 



Foramen round. Foramen to Poste- 

 rior end of sagittal suture 1.2 cm. 

 " 7\yj Condyles 0.2 distant in front, and 0.7 



dist. behind. Length of Condyle 0.5. 

 Breadth 0.4 cm. A suture corresponds 

 to the upper curved ridge of the 

 occipital bone or nearly so. Two V impressions with the angles turned out 

 are on each side of the median eminence which runs up and back. Hapale 

 Jacchus. A.-P. 2.0 cms. T. 1.8 cm. B. 0.8. F. 0.5 round F. to Summit 

 (Suture) 1.0. Condyles Front. 0.2 distance 0.7 beh. Length of Condyle 0.6 

 by 0.25 broadest. The median external eminence is wider above than 

 near Foramen magnum. There are two elevations one above and one 

 below, on right side a triangular impression. There 

 is only one elevation in the left side, three other 

 specimens were examined. 

 Mycetes Seniculus. A.-P. 4. T. 4.0. B. 2.7. F. 1.3 round. 

 Foramen to ^1 suture 3.4 cm. Mesial elevation 

 slight. Tabular part thin at sides. The poste- 

 rior part of the Mandible is far back in the six 

 specimens examined. The average of six gives 

 the following measurements in Centimetres. A.- 

 Post. 4.2. Tr. 4.1. B. 2.1. F. 1.5. F. to S. 2.5. 

 D. betw. Cond. 0.7. 1.2 beh. Cond. 1.1x0.6. 

 Cebus-gives. A.-Post. 4. T. 3,9. B. 0.9. F. 1.5. F. to S. 

 2.4 cm. Dist. Cond. 0.5 — 1.3. L. 1 x 0.4. 



The breadth of the Foramen was much less than the Ant.-Post. diam. 

 in two specimens out of seven. 



Fig. 1. 



Fig. 2. 



