EXPEDITION TO SOKOTRA: NEW SPECIES. 7 
(7) Glauconia filiformis. 
Very closely allied to G. macrochynchus, Jan, with which it agrees in the 
very prominent hooked snout, the number and arrangement of the head 
shields, and the extremely slender form. It differs in the more pointed 
snout, and in the rostral shield not extending so far back as the level of the 
eyes. 14 scales round the body. Diameter of body 100 to 140 times in total 
length, length of tail 13 times. Caudal spine small. Flesh-coloured, each 
dorsal scale with a pale brown spot. 
Total length, 155 millim. 
Four specimens from Sokotra (Dahamis, 350 feet; Jena-agahan, 1200-2500 
feet ; and Homhil, 1500-2500 feet). 
(8) Glauconia longicauda. 
Snout pointed, strongly projecting, slightly hooked ; supraocular present ; 
rostral moderately large, not extending to the level of the eyes, its upper 
portion a little longer than broad ; nasal completely divided into two, the 
lower part very small; ocular bordering the lip, between two labials, the 
anterior of which is very small; five lower labials. 14 scales round the body. 
Diameter of body 40 to 48 times in the total length; length of tail 5 to 7 
times. Caudal spine strong. Brown above, white beneath. 
Total length, 170 millim. 
Numerous specimens from Sokotra (Dahamis, 350 feet ; Jena-agahan, 
1200-2500 feet ; Homhil, 1500-2500 feet). 
III. Descriptions of the New Species of Scorpions, 
Centipedes, and Millipedes. 
By R. I. Pocock. 
Scorpiones (Scorpions). 
Heteronebo, gen. nov. 
Genus of the Diplocentrini, with the ocular tubercle shallowly sulcate or 
entire. Hand flat above, with strong external keel and weak median keel, or 
convex above and obsoletely keeled. Yursi not distally lobate, the inferior 
angle nearly rectangular (about 85°). Tail without definite half-moon-shaped 
area at the posterior extremity of the lower surface. 
Type of genus, H. granti. 
Intermediate in character between the Arabian genus Nebo and the 
Central American and Antillean genus, Diplocentrus. | Resembling the former 
in the elongation of the 5th caudal segment ; the latter in the structure of 
its tarsi and ocular tubercle. 
The two species of this new genus, each of which is represented by a 
couple of females, taken on Abd-el-Kuri, may be diagnosed as follows :— 
(1) Heteronebo granti. 
a. Hand with its upper surface nearly flat, bordered externally by a strong 
“finger keel” and furnished with a weaker median longitudinal keel ; ocular 
tubercle small, not sulcate ; inferior median keel obsolete on caudal segments 
