430 
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 1/1; 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 ...... SOE OER ia ee ae, = 
== Of the thunk. seals sore eee ee 8 0 
ofthe tall tees ee eatin d crete, See ae 
This species is dedicated to the memory of the late Prof. A. M. C, 
Dumeril. 
5. Nore on ASPIDOCHELYS LIVINGSTONII. By Dr. Jonn 
Epwarp Gray, F.R.S., V.P.Z.S., erc. 
In the ‘ Proceedings’ for this year, p. 5, I described and figured 
a Soft Freshwater Turtle from the Zambesi under the name of Aspi- 
dochelys livingstonii; at p. 314 are printed some further observa- 
tions on the African Trionyches with hidden feet (Hmyda) ; 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 
