1898.] CTENirOEM SPIDERS or AFRICA, ARABIA, AKB STRIA. 31 



have not before been placed on record, so far as I am aware. 

 Mr. Gumming relates tbat the spider was seated on the outside of 

 the jolly-boat, above the water. When he tried to catch it, it 

 took to the water and made for a plant near the boat ; and on 

 again attempting to capture it, it beat a retreat again to the boat, 

 where it was eventually secured. This reminds me exactly of the 

 habits of other Lycoctenince which I met with on the Amazons, as 

 well as of the true dolomedine forms such as Triclaria. 



Thalassius phipsoni, sp. n. (Plate IV. fig. 5.) 



$ ad. 27 mm. Hah. Makim, Dorun, India. Type in coll. 

 Brit. Mus. 



Total length 27 mm. Carap. 10-5 x 8-75. Legs : i. 41 — ii. 41 

 _iii. 40— iv. 47. Tibia i. 9-5. 



Colour. Carapace and legs ferruginous-grey, the former 

 having two rich bands of white scales extending, longitudinally, 

 from the anterior angles of the clypeus to a point halfway down 

 the posterior decHvity, laterally not extending to the margin. 

 Abdomen entirely delicate ochreous-grey with oHve tint, having 

 a broad lateral band of rich white scales on each side. 



Structure. Tibia i. shorter than carapace. Vulva, see Plate IV. 



fig- ^- . ., . , 



This fine species is very similar m general appearance to 



T. jayakari, hut the difference of locality , and the diiierence in the 



A^lva and in the relative length of the tibia of the first pair of legs 



compared with the carapace, prove that it is certainly a distinct 



species. An adult female was taken by Mr. H. M. Phipson at 



Makim and a young female at Dorun, in British India. 



XiLus, Cambr., 1876. 

 XiLus CUETUS Cbr. 



2 juv. 5 mm. Spid. Egypt, p. 596, pi. Ix. fig. 13, Alexandria. 

 "Eyes in two not very widely separated and almost equally 

 curved transverse rows ; the convexity of the curves directed 

 forward, but the front row is the shortest. Each tarsus ends 

 with three curved claws." 



From the figures on pi. Ix. (I. c.) one would conclude the species 

 to belong to some genus closely allied to Dolomedes. 



Having carefully examined the type, I find it to be a three- 

 clawed form with 2 — 2 — 2 long subtibial spines, with an eye- 

 formula closely resembling Thalassius, and with three teeth on 

 inferior margin of fang-groove. Whether it is identical with 

 Thalassius or not one would not like to speak too positively from 

 such very immature specimens, but judging from the number of 

 spines beneath tibiae i. and ii. one would say most probably not. 

 Adult forms from the neighbourhood of Alexandria will probably 

 settle the point. 



