THE GENI5RA AND SPECIES OF SYMPHYLA. 85 



a.bove it moderately long, with about eight fine lines; the 

 apical seta is a little shorter than the area. 



Length. — From 1*75 to 2"5 mm. 



Locality. — Island Koh Chang, Gulf of Siain, under stones, 

 January 12th, 1900 (Dr. Th. Mortensen). 



Remarks. — The species is closely allied to S. neotropica, 

 from Venezeula, but is distinguished, by a number of rather 

 small characters. The cerci have protruding setge near the 

 upper margin, the claws are more slender and nearly equal in 

 length, the second scutum with the setse a little shorter, the 

 secondary whorl complete only on the distal third of the 

 antennge, etc. 



10. Scolopeudrella pusilhi, n. sp. PI. 7, figs. 4 a — 4 c. 



Material. — One specimen with the full number of legs. 



Head. — Moderately long, scarcely one fourth longer than 

 broad. The central rod interrupted at the middle, without 

 lateral branches, its anterior part and the frontal branches 

 well developed. 



Antennae. — One antenna is complete, and contains twenty- 

 seven joints. The setse in the central whorls are naked, 

 slender, and tapering from the base, rather short on the 

 proximal and short on the distal joints. The secondary 

 whorl begins below on the fourteenth joint, but it has 

 scarcely been developed on the upper side even on the most 

 distal joints. 



Scuta. — The second scutum (fig. 4 a) has the hind margin 

 between the processes straight, without striped band; the 

 processes are of moderate size, distally conspicuously pro- 

 duced, rather considerably longer than broad, with two setse 

 at the outer margin, one seta rather near the base of the 

 inner margin, and the distal seta somewhat removed from 

 the end. The antero-lateral seta3 are not half as long as the 

 processes; between these and the distal seta) five or six short 

 setae are inserted at the lateral margin. The third scutum 



