226 Zoological Society : — 



are as long as, and not much larger than, the anterior ones ; vertical 

 five-sided, slender, with the posterior angle very acute ; occipitals 

 of moderate size, tapering behind, but with the extremity rounded. 

 The shield which is pierced by the nostril is very indistinctly divided 



into two ; loreal square ; anteorbital high, not extending on to the 

 vertical ; three posterior orbital shields ; an oblong temporal shield 

 is in contact with the two inferior oculars ; three or four scale-like 

 temporals behind the anterior one. Eight upper labials, the fourth 

 and fifth coming into the orbit. Scales short, rhombic, smooth, in 

 nineteen rows. Ventral shields 143 ; anal l/I ; caudal 85. The 

 colours have been described in the diagnosis ; the ground-colour 

 changes into lead- grey, after the epidermis has been rubbed off. The 

 maxillary teeth form one continuous series ; anteriorly small, they 

 gradually become longer and stouter posteriorly, and none of them 

 are grooved. 



inches, lines. 



Length of the head 4^ 



of the trunk 8 



of the tail 3 5 



This species is dedicated to the memory of the late Prof. A. M. C. 

 Dumeril. 



Note on Aspidochelys Livingstonii. By Dr. John 

 Edward Gray, F.R.S., V.P.Z.S., etc. 



In the 'Proceedings' for this year, p. 5, I described and figured 

 a Soft Freshwater Turtle from the Zambesi under the name of Jspi- 

 dochelys Livingstonii \ at p. 314 are printed some further observa- 

 tions on the African Trionyches with hidden feet {Emyda) ; and in 

 both these papers I state that I had not been able to find any pub- 

 lished description of a Tortoise from Zanzibar that Dr. Peters had 

 indicated to me in a letter to myself in 1840 under the name of 

 Cyclanosteus frenatus. 



Dr. Peters, through Mr. Sclater, has kindly referred me to a 

 paper by him on the Tortoises found during his travels, in the 

 * Bericht der Konigl. Akad. zu Berhn,' for 1854, p. 276, where the 

 Tortoise from Zanzibar is very briefly described, but under the 

 name of Cycloderma frenatum ; and has stated that he believes it is 

 the same as the one I described from the Zambesi. Mr. Sclater says 



