144: On Ilt'Jgehotjs from tin Persian GuJ/. 



JIdb. ^Mountains nortli of Aden ; type from El Kubar, 

 about GO miles north of AcIlmi. Alt. 5200'. 



2^i//)e. Adult male. 13. M. no. 2. 11. 22. 2. Original num- 

 ber 11. Collected 19tli June, 1902, by G. W. Bury. 



Whether the facial pattern of this specimen is constant or 

 not, llio small size of its feet and its whitish head sei)arate it 

 from true niger, while the size of its skull distinguishes 

 it from F. n. seniculusy which also has a somewhat similar 

 general coloration. 



The white Tanb hedgehog, the rej)resentative of the large- 

 bulla group of Paraechimis, is also a new subspecies of an 

 Arabian form. It may be called 



Paraechimis dorsalis albatus, subsp. n. 



Nearly allied, in all essential character?', to true P. dorsalis 

 of the Hadramaut, but smaller and more completely white. 

 Back at first sight appearing wholly pale sandy, but closer 

 examination shows that the spines of the median dorsal area, 

 where in dorsalis they are obviously darkened, are here also 

 not completely white throughout their length, having a sub- 

 terminal brown band. Spines of sides mostly light throughout. 

 JMuzzle and cheeks brown, with a median brown line running 

 up the forehead in some specimens, llest of head, ears, 

 shoulders, and under surface pure white — the inguinal region, 

 however, brownish. Hands, feet, and tail also pale brown. 



Skull as in true dorsa/is, but rather smaller. Zygomata 

 comparatively slender. Bullae of similarly large size, and 

 the pterygoids well inflated. Penultimate premolar absent 

 in all three skulls, this tooth being minute in some specimens 

 of dorsalis and absent in others. 



Dimensions of the type (measured in the flesh) : — 



Uead and body 196 mm.; tail 24; hind foot 32; 

 ear 44. 



Skull : condylo-basal length 46; zvgomatic breadth 27'7 ; 

 palatal length 24*6 ; dentariength'22-2 ' length of bulla 10; 

 combined length of j>* and two anterior mohirs 11. An old 

 male skull measures 48 mm. in condylo-basal length. 



Hab. Tanb Island, mouth of Persian Gulf. 



Ti/pe. Adult female. B.M. no. 21. 12. 3. 1. Original 

 immber 1185. Collected 8th April, 1921, by V. S. La Per- 

 sonne ibr the Cox-Chcesman collection. Presented. 



Readily distinguishable from dorsalis by its far paler 

 colour. Also related to P. ludlozvi, which may prove to be 

 best placed as a third subspecies of dorsalis. 



