Species of Oriental Mygalomorphaj. 181 



Mandible armed below with about 11 teeth, which are 

 larger in front and behind, and mixed up in the middle with 

 small teeth, continuous with the granules which cover the 

 hinder half of the area. 



Labium smallish, much wider than long, narrower than 

 the ocular tubercle, separated by a deep groove from the 

 sternum, densely spinulose like the internal angle of the base 

 of the maxilla. 



Sternum considerably longer than wide, widest between 

 the cox£e of the third leg, narrower forwards, distance be- 

 tween the posterior impressions about equal to the width of 

 the ocular tubercle. 



Legs 1, 4, 2, 3, long and slender, the first pair stouter as 

 well as longer than the fourth ; patella and tibia of first longer 

 than of fourth, and a little longer than the carapace, the 

 length of which is a little greater than the patella and tibia 

 of the fourth ; tarsus and protarsus of first equal to width of 

 carapace, shorter than those of fourth by one third of the 

 tarsus ; tarsus of first the longest, of second and fourth 

 about equal ; tarsus of palp longer than that of first leg, and 

 measured to apex of scopula longer than tibia of palp ; protarsi 

 of first only slightly longer than that of third ; tibiae of first 

 and fourth about equal ; patellae of third and fourth almost 

 equal, and shorter than that of the second ; scopulce wide, 

 entire, except that on protarsus of fourth, which is divided 

 and covers rather more than one third of the segment, that 

 on the third covering more than half. Posterior spinners 

 about equal in length to the protarsus of the third ; second 

 segment shorter than first or third, which are about equal. 



Measurements in millimetres. — Carapace, length 28"5, width 

 of tubercle 4-5, length 3-2 ; abdomen (somewhat shrivelled), 

 length 26, width 18; length of sternum 12*5, width between 

 cox£e of third legs 10, between those of first legs 8. Ap- 

 pendages : length of palpi 50, of first leg 81, of second 74, 

 of third ^b, of fourth 79 ; posterior spinner 12-5. 



Log. N.W. Borneo (probably mainland opposite Labuan). 

 One specimen obtained by A. Everett, Esq., in 1888. 



PJiormingochilus tigrinus, sp. n. 



? . Colour. — Carapace clothed with yellowish-red hairs, 

 redder at the sides ; abdomen reddish, with strongly defined, 

 lateral, fuscous spots and stripes and a median fuscous band j 

 the lower side of the body, and of the cox£e and femora, a very 

 deep blackish green ; scopulaj olive-green ; the long setse on 

 the limbs and trunk reddish. 



Carapace a little wider than in Everettii, the width being 

 Ann. & Mag. N. Hist. Ser. 6. Vol. xv. 13 



