458 ZOOLOGY. 



20. Homalosoma lutrix, L. 



Coluber lutrix, L. Syst. Nat. ed. 12, i. p. 275. 

 Homalosoma lutrix, Dum. et Bibr. vii. p. 110. 



A very young specimen, only 9 in. long, was taken at 

 Asliangi. 



21. Bucephalus typus, Smith. 



Zoological Journal, Yii. p. 441. 



a. capensis. Smith, in. Zool. South Afr. Kept. pi. 12. — Giinther. 



jB. typus, Dum. et Bibr. Erp. Gen. vii. p. 877. 



One specimen, only 22 in. long, was procured at 

 Senaf^ ; a larger one, which was captured on the Anseba, 

 measures 33 in. 



22. Psammophis sibilans, L. 



Coluber sibilans, L. Syst. Nat. ed. 12, p. 383. 

 Pha/m/mophis monoliger, Dum. et Bibr. vii. p. 891. 



A single individual of this common African Tree Snake 

 was taken in the Anseba valley. It is 23 in. long. 



Oedee BATRAOHIA. 



23. Pyxicephalus rugosus. 



A single specimen found at Senafe. 



24. Rana mascariensis, Dum. et Bibr. 



Dum, et Bibr. Erp. Gen. viii. p. 350. 



This Frog was common in the streams at Suru, and at 

 Ain on the Lebka, both at low elevations, not exceeding 

 2,000 feet above the sea. 



