422 On a new Species of Hare from Algeria. 



The spicula consist of four forms : — 



(a) Shaped like a pair of opera-glasses, or like two globose 

 bottles or carafes united at their sides and having two necks. 

 The sides bear large tubercles and the mouths of the necks 

 are set with small conical tubercles. 



(b) A cylindrical staff with two whorls, each of four thick 

 rays ; the projecting ends of the staff make up a ten-rayed 

 spicule. The ends of the rays are tuberculated. Contracted 

 and irregularly-formed spicules of this type frequently occur. 



(c) A few cruciform spicules of various shapes, but essen- 

 tially composed of four arms at right angles, meeting at the 

 centre with equal acute-angled bases. 



(d) Monaxile spicules, cylindrical, fusiform, or clavate, all 

 more or less tuberculated. These belong to the polype-cells. 



LII. — Description of a new Species of Hare from Algeria. 

 By G. E. H. Barrett- Hamilton. 



The following is a description of a new hare which was 

 obtained by Dr. F. D. Drewitt at Col. de Sta, in the Aures 

 Mountains, near Biskra, in Algeria, in March 1896. In its 

 size and form and in the peculiar narrowness of it3 skull this 

 hare is very similar to Lepus kabylicus, de Wint., but it is 

 remarkably different in its conspicuously lighter coloration ; 

 it appears to be a desert form of Lepus kabylicus, in which 

 all the rich cinnamon tints of that species are replaced by 

 pale grey or yellowish buff. 



Lepus pallidior, sp. n. 



In size, form, and skull similar to L. kabylicus. but 



with the coloration conspicuously lighter on all parts of the 

 body. The colour of the undeifur* in L. kabylicus is rich 

 cinnamon, but in L. pallidior pale grey or yellowish buff. The 

 white of the belly of L. pallidior is clearer, the cinnamon of the 

 flanks almost replaced by pale buff, the chin white, the cheeks 

 light grey instead of rufous, the nuchal patch and the fringes 

 of the ears a much lighter buff, and on the back the cinnamon 

 annulations of the hairs of Lepus kabylicus are replaced by 

 annulations of a silvery-grey colour. The size of the black 

 tips of the dorsal hairs is very much reduced, so that the back 



* Except the bases of the hairs in both species, which are bluish. 



