of South African Reptiles. 143 



Pedes quatuor, dactyli quinque ; digiti palmarum breves, 2dus et 

 3ius fere aequales, posteriorum longi, 2dus longissimus. 

 Porifemorales. 



1. Pleurotuchus typicus. — Supra brurmeus, dor so duobus lineis 

 longitudinalibus albis et duobus nigro variegatis ; lateribus maculis 

 subflavis noiatis ; subtus favo-albus, 



Back and sides brownish, the former with two longitudinal lines 

 on each side, the outermost white and narrow, the innermost black 

 and rather broader. Both commence at the outer corners of the eyes, 

 run in contact with each other, and the white one terminates near 

 the commencement of the tail, while the other extends nearly half 

 way to its point, and there, after uniting with its fellow of the oppo- 

 site side, gradually disappears. Sides variegated by small, some- 

 what square, spots of a yellowish cast, and the ground colour is 

 clouded and mottled with darker tints, which in some places ap- 

 proach to black. Belly yellowish white ; tail tinted with brownish, 

 brownish-red, and yellowish-white, but disposed in no regular order. 

 Legs and toes the same colour as the body, without variegations. Fe- 

 moral pores sixteen in number ; ten longitudinal rows of plates on 

 belly. Length from nose to anus four inches, from anus to tip of tail 

 seven inches and a-half. This lizard inhabits the dry sandy flats of 

 Little Namaqualand, and is rather abundant towards the mouth of 

 the Orange river, where it is called by the native Hottentots Ouru- 

 kaima-aap. Its motions are very quick, and when discovered upon 

 open ground runs towards the roots of the first bush it can find, and 

 from thence if pursued into any hole it can perceive, but if one can- 

 not be discovered, it even attempts, and frequently succeeds, in for- 

 cing itself under loose sand, so as to escape detection. 



2. Pleurotuchus Desjardinii. — Supra sub-brunneus, dorso Jasciis 

 duobus longitudinalibus, exteriore albo, interiore nigro, maculis ni- 

 gris maculatis ; lateribus lineis verticalibus nigris et albis nota lis ; 

 sublus favo-albus. 



Colour of back and sides brownish, with two longitudinal lines or 

 stripes on each side of the former, the outermost white, and the in- 

 nermost black ; those of each side in direct contact, commence be- 

 hind the eye and terminate on the root of the tail ; along the centre 

 of the back an irregular row of black spots, each marked with one 

 or more dots of white. Sides variegated by narrow vertical stripes 

 alternately black and white, below yellowish white ; legs greenish 

 brown, variegated with a few white spots ; femoral pores about 

 twelve in number ; eight longitudinal rows of plates on belly. 

 Length from nose to anus three inches and a-half, from anus to tip 



