96 



MB. G. A. BOULEKGER ON NEW 



[Feb. 7, 



which does not appear to be mentioned by Gadovv ; that is, a bundle 

 (z) which passes from the hinder part of the membrana tympani- 

 formis interna to the oesophagus. I cannot distinguish a " bron- 

 chiodesmus," unless this is some modification of it. The only 

 muscle on the outer surface of the syrinx is the " tracheo- 

 bronchialis," which is attached to the ring d. 



Eig. 6. 



The syrinx of Notm-nis, from the left side ( X 8). 

 e.t., membrana tympaniformis externa. Other letters as in fig. 4. 



A comparison of the syrinx with the figures given by Gadow in 

 Bronn's ' Thierreich,' as well as with those described from time 

 to time by Beddard, shows that in this particular Notoniis is A'ery 

 peculiar. 



5. Descriptions of two new Lizards from the Interior of 

 British East Africa. By G. A. Boulenger, F.R.S. 



[ReceiTed January 6, 1899.] 

 (Plate X.) 

 Lacerta jacksoni. (Plate X.) 



Head rather long, much depressed. Eostral not entering the 

 nostril ; a single postnasal ; four upper labials anterior to the 

 subocular ; a series of granules between the supraoculars and the 

 supraciliaries ; occipital moderate, a little shorter than the inter- 



