392 PERCY SLADEN TRUST EXPEDITION 



boundary between the cephalothoracic area and the rest of the scutum. Ocular-tubercle 

 of large size and furnished dorsally with three prominences, which 

 are arranged in a longitudinal series ; the anterior one being very 

 long and pointing forwards and upwards ; the second very much 

 smaller ; and the posteriormost minute and tubercular (Fig. 9). 

 The whole surface of the scutum is covered with large and con- 

 spicuous granules, each of which carries a short and stout hair. 

 A pair of enlarged and almost tubercular granules is present in the 

 middle of the second abdominal segment, they are separated from 

 one another by an interval equal to their diameter. Another pair, 

 which are slightly further apart from one another, are placed in 

 the middle of the third. Slightly enlarged granules, which are Fig. 9. Sitalces gardineri, 



. . , ,i r> i » ,i 1. i • i J n. sp. Ocular-tubercle 



also paired, occur on the first and fourth abdominal segments, and £ rom the gide 



the granules of these pairs are further apart from one another than 



those of the second and third segments. A number of the granules of the middle part of 



the cephalothoracic area are also enlarged. Posterior margin of the scutum furnished 



with three conspicuous projections (the middle one being much the largest), and also with 



enlarged granules. 



Ventral surface furnished with granules similar to those of the upper surface, but of 

 smaller size. Coxa of fourth leg a little broader and much longer than the coxee of the 

 other legs ; the anterior side of the free part of the segment with 5 — 6 little projections, 

 and the dorsal side with a somewhat larger projection. 



Palp rather weak and shorter than the body. Femur armed below, at the proximal 

 end, with two spines, and with a distal spine on the inner side. Patella about half the 

 length of the femur, about equal in length to the tibia, and a little shorter than the 

 tarsus ; it is armed with two inner spines and with a minute outer spine. Tibia with 

 three inner and two outer spines. Tarsus much longer than the claw and furnished with 

 three spines on each side, the distal pair being much more slender than the others. 



Legs of moderate length. Femur of first pectinate both above and below, the teeth 

 in the dorsal series 13 in number, those in the ventral series 11 — 12 in number; its 

 trochanter with 1 — 2 small dorsal prominences and with three small ventral prominences. 



Measurements in mm. Length of body 2'75, of palp (from base of femur) T7. 



Material. A single mutilated female example from Mahe. 



Remarks. M. Eugene Simon, to whom I sent a sketch of the ocular tubercle of the 

 new species described above, kindly informs me that I am right in thinking that it belongs 

 to the genus Sitalces. According to Loman, however, the two species of this genus (both 

 of which are from the island of Reunion) probably belong to different genera. Judging 

 from Simon's description I should say that this is very possibly the case, but I have not 

 examined specimens of these species, and therefore I am unable to express a definite 

 opinion upon them. There is little doubt, however, that the species from the Seychelles 

 is closely allied to S. novem-tuberculatus, Sim., and I propose to regard the latter as the 

 type-species of the genus Sitalces. 



