26 



Dr. F. "Werucr, of Vienna, lias been so good as to compare two 

 of the foregoing specimens with the types of Sjjatalura collaris, 

 Steindachner, preserved in the Vienna Museum, and with which, 

 lie informs me, they are perfectly identical. The specimens I sent 

 to Dr. Werner had their tails entire and unrenewed, whereas the 

 only one of the four types examined by him that possessed a tail 

 liad it reproduced. A rough sketch of this tail, with which I 

 have been favoured by Dr. AVeruer, represents a tail of the same 

 type as that of Spatalura, Gray. It is unquestionably a repro- 

 duced tail, crested above and below. Tlie tail, however, of this 

 species, when renewed for the second time, becomes nearly 

 cylindrical and the crests disappear. 



The types of S. collaris were described by Dr. Steindachner 

 as having a dorsal crest on the body, but Dr. Werner, having 

 informed me that my specimens, which have no trace of such a 

 crest, are perfectly identical with the foregoing types, are we 

 therefore to conclude that an error has crept into the description 

 of the species ? 



The only particulars in which P. carteri. Gray, differs from 

 P. collaris, Steindachner, are that it has a mesinl, ventral patcli 

 of spiny scales, and that no collar is present. Dr. Steindachner 

 did not know whence his specimens of P. collaris were obtained ; 

 whereas the types of P. carteri were from the Island of Masira. 



Hemidacttlus tukcicus, Linn. 



Lacerta turcica, Linn. Syst. Nat. 12 ed., i. 17G6, p. 3G2. 



2 d, 4$, and 3 juv. 



These specimens are all very pale-coloured, with one exception 

 in which the dark brown markings of the body and the brown 

 bands on the tail are very pronounced. Doubtless, if the 

 physical appearances of the localities in which these specimens 

 were obtained had been recorded, the light-coloured individuals 

 would have been found either to have come from the pale sahil or 

 fi'om the nearly white limestone clifts, and the darker specimen 

 from dark-coloui'ed rocks, as all geckoes are very adaptive in 

 their colouring. 



Hemidacttlus flaviviridis, Eiippell ^ 



Hemidactylus jlaviviridis, Eiippell, Anderson, Proc. Zool. Soe. 

 1895, p. 642. 



1 S •, Shelir on the sandy maritime plain to tlie east of Malcallah. 



' Tjpe cxaminecl. 



