866 ME. B. I. POCOCK ON SCOEPIONS, PEDIPALPS, [NoV. 14, 



Countries,' p. 389, 1897). The latter, however, has the lower side 

 of the abdomen covered with setae, which are longer and more 

 numerous than in T. inornatus ; there are no blood-red markings 

 on the abdomen, and the depression of the vulva has no pale lateral 

 spot and black ridge. 



Thalassius aueatus, sp. n. (Plate LYII. fig. 20.) 



Colour. Carapace uniformly covered, except on the clypeus which 

 is brown, with pale hairs, white at the sides and becoming yellowish 

 on the summit ; abdomen covered above with golden-yellow hairs 

 and marked in its posterior half with some small symmetrical 

 brown spots ; sides of abdomen brownish red, darker above than 

 below, lower surface bright yellowish brown ; legs uniformly deep 

 chocolate-brown. 



Carapace as long as protarsus and one-fourth of the tarsus of 

 the 1st leg, slightly shorter than tibia of 1st and than tibia and 

 protarsus of 4th. 



Vulva very like that of T. regalis, but the anterior depression 

 filled in at the sides and leaving a longitudinally oblong median 

 depression. 



Log. Benito Eiver {G. L. Bates). A single adult female. 



Eecognizable from the other species by the uniform golden-yellow 

 colour of the upperside of abdomen and carapace, and uniformly 

 deep brown legs. 



Thalassius leucosticxus, sp. n. 



Colour of carapace brown, with a broad yellow band on each side 

 running from the clypeus almost to the posterior border, its upper 

 edge tolerably even, the lower irregularly jagged on a level with 

 the coxae of the 2nd and 3rd legs, where the space between the 

 stripe and the lateral margin is widest ; a few small white spots on 

 the dorsal surface of the carapace and one on each side above the 

 anterior extremity of the stripe. Abdomen a deep rich velvety 

 brown above, with a broad yellow stripe on each side, the stripe 

 straight throughout its length, not geniculate, but at its posterior 

 end irregularly jagged above, forming incipient white spots ; 

 anterior part of upper surface of abdomen with a few symmetri- 

 cally arranged yellow spots ; sides of abdomen below the stripe 

 spotted with yellow ; legs and palpi brown, spotted vvith yellow 

 stripes above, protarsi in addition ringed with darker bands ; 

 lower side of legs, sternum, and mandibles a tolerably uniform 

 fawn-brown ; lower side of abdomen a little darker than sternum, 

 with a few white spots at the sides. 



Carapace shorter than the 1st and 4th tibise and not quite so 

 long as the 4th protarsus, longer than the 1st protarsus ; width of 

 carapace just about equal to tibia of 3rd leg. Ocular quadrangle 

 longer than wide, shorter than height of clypeus ; posterior median 

 eyes larger than anterior medians. 



Legs 4, 2, 1, 3, strongly and normally spined ; protarsi not -very 

 noticeably plumose. 



