" Zur Losung der ' lixxxaXh-Frage.'' " 39 



terminating towards the distal end of the flagellum in aspined 

 projoction. Distal part of flagellum dilated and squarely- 

 truncate. Flagellum inserted above the interval between the 

 two anterior teeth and extending posteriorly to the middle of 

 the mandible; basal lamina moderately elevated (fig. 5). 



Maxillipalp. Tibia, metatarsus, and tarsus of maxillipalp 

 ventrally ])rovided with numerous cylinder-bristles, those of 

 the metatarsus and tarsus unequal in size and more numerous 

 than those of the tibia. 



Measurements in mm. Length of tibia of maxillipalp 13"75, 

 of metatarsus and tai-sus of maxillipalp 12; breadth of 

 cephalothorax 8. (In another specimen tibia 12, metatarsus 

 and tarsus 11, cephalothorax 6*5.) 



Hah. Two males of this new form were collected by 

 Captain R. Ford in British East Africa (near Lake Baringo?). 



Remarks. The specimens are dry and somewhat shrunken, 

 and therefore the total length cannot be given. The colour 

 also is somewhat faded. The species may be readily distin- 

 guished by the peculiar form of the flagellum. 



V. — Remarks on Prof. L. von ]\I6hehfs Paper ^^ Zur Losung 

 der ' Muralis-i'>a_9'e.' " ^j G. A. Boulenger, F.U.S. 



Pursuing his studies towards the solution of the Lacerta 

 muralis problem, studies which, it is already perfectly clear, 

 will result in a plethora of ill-defined Jordanian species, the 

 distinguished Hungarian zoologist Prof, von M(5hely has 

 recently jjublished a short paper * in which he attempts to 

 prove that the derivation of forms must have taken place in 

 a direction the reverse of that postulated by Eimer f and since 

 endorsed by most workers at this dithcult group, including 

 myself, and to which Dr. Gadow's recent investigation of the 

 American lizards of the genus Cnemidophorus \ has given 

 further support. 



The numerous variations in the pattern of markings in 

 L, muralis fall roughly under five heads — striated, spotted, 

 reticulated, harred, oceUated. It is evident to any one 

 studying large series that these different types of markings 

 are insensibly connected by every possible gradation §. Tlie 



* Ann. Mus. flung, v. 1907, p. 84, pi. iii. 

 t Arch. f. Natuig. 1881, p. 375. 

 i Troc. Zool. Soe. 1900, i. p. 277. 



§ Eimer has pointed out that the pattern on the posterior part of the 

 body anticipates the evolution of that on the anterior part. Ihis is true 



