KUNGL. SV. VET. AKADEMIENS HANDLINGAR. HAND 47. V<> 6. 2 I 



A similar opinion is also expressed by Fr. Wbener wh<> says ; ' Diese Schlange i i 

 bei Khartoum — — - - nicht selten; weiter siidlich am Weissen Xil scheinl sie nichl 

 melir vorzukommen. » From Somaliland it is not known, bu( l.oi i.i;\c i;i: has de- 

 scribed another species of the same genus from the latter country. When Zamenis 

 florulentus was discovered just north of Guaso Nyiri its southern boundary-line has 

 been moved very far beyond its hitherto known range. The collections made in the 

 country round Guaso Nyiri by this expedition have revealed the close connection of 

 the fauna of the country mentioned with that of Somaliland, but the affinity with 

 the Sudan fauna is otherwise not very apparent. The three other species of snakes 

 from the Guaso Nyiri region are all found in Somaliland. Conf. also what has been 

 said above about the lizards. 



The tenth species of snakes not mentioned as yet, Thrasops rothschildi, is a tree- 

 snake which for reasons set forth below ought to be regarded as an offshoot of the 

 West-African forest fauna. This is also in accordance with its occurrence in the 

 forest-region of Kenia and is an analogy to what is found in other groups as well. 



Boidae. 



Python sebaB C4ml. 

 Blur. : Cat. Snakes 13. M. I, p. 86. 



It was told that the Python was not very rare near Nairobi, although I never 

 had the opportunity of seeing any alive myself. A specimen was shot at Nairobi 

 river one of the first days of April, and Mr. Klein kindly presented me with the 

 head of this one. I heard from reliable sources that at least one Python killed near 

 Nairobi had attained a length of »24 feet». 



The Pythons are usually found among the rich vegetation round the small 

 rivers, and, of course, it is chiefly during the rainy season that they appear. 



The 21 of March Mr. Horne saw a Python not far from Meru borna and he 

 estimated its length to be about 16 feet». 



Colubridse. 



Zamensis florulentus Geoff. 

 Blgr. : Cat. Snakes B. M. I, p. 402. 



A young specimen was caught just north of Guaso Nyiri "Va 1911. Its general 

 colour is greyish yellow, — sand colour - - with transverse markings on the back, 

 two alternating series of roundish spöts on either side, and a third series of less de- 

 fined spöts at the lateral ends of the ventrals. All these markings are påle reddish 



1 Ergebn. — — — zool. Forschungsreise Dr. Fr. Werner"s nach dem ägypt. Sudan etc. XII Reptilien. 

 p. 48. Sitzber. K. Akad. Wiss. Wien, Math. Naturw. Kl., Bd. CXVI. 



