5l6 REVIEWS 



previously described by the author two new genera, Leptocheirus and 

 Toroteoiemus, are added in the present paper. The limbs in these 

 forms are of strangely primitive structure, in some respects. The 

 propodial and epipodial bones are elongated, and there are but three 

 digits, with a rudimentary or vestigial fourth. The hind limbs are 

 also larger than the fore limbs, in some at least ; and the ribs of the 

 dorsal region in some of the species are single-headed. The author 

 promises us the description and illustration of still other and diver- 

 gent forms soon, and, from the thoroughness with which he is studying 

 his abundant material, we may confidently expect much new light 

 upon the history of this strange, and in many respects puzzling, order 



of reptiles. 



S. W. W. 



Oil the Skull of a True Lizard {^Paliguana Whitei) from the 



Triassic of South Africa. By R. Broom. Records of the 



Albany Museum, Vol, I, p. i. 



Hitherto the mesozoic history of the Squamata, aside from the 



Dolichosauria and Mosasauria, has been very scanty indeed. The 



discovery by Broom of what is undoubtedly a real lacertilian from the 



Triassic is, therefore, of more than passing geological interest. The 



author believes that its relationships are close with the American 



Iguanas. The teeth are apparently pleurodont, the quadrate is free, 



and the upper temporal arch has the disassociated elements of the 



lacertilia. With this addition to the Triassic fauna, all the known 



orders of reptiles are now represented in this formation, as also the 



mammals. 



S. W. W. 



