1893.] Entomology. 575 
tarsus is not provided with a claw, but is capable of being turned back 
against a depression in the tibia. The mandibles are shorter than the 
body. 
During the autumn of 1892, I found under a piece of driftwood 
along a small creek, a fully developed male belonging to this genus. 
The species is evidently rare for I have never been able to find another 
although I have searched persistently. 
Sabacon spinosus, n. sp. 
Male—Body 3 mm. long, 2 mm. wide ; palpi, 8mm. long. Legs: 
first, 11.5 mm. ; second, 19 mm. ; third, 12 mm.; fourth, 16.5 mm.— 
Body testaceous with dusky markings; the markings on dorsum 
arranged transversely and following segmentation. Palpi and legs 
light testaceous with almost continuous dusky blotches. Ocular 
tubercle black, very near front margin of cephalothorax, much wider 
than long, low, with a deep longitudinal sinus but no spines on carine. 
A small round, not very distinct pore on each cephalo-lateral angle of 
the dorsum, not isolated by distinct oblique sinuses. On the dorsum 
of the cephalothorax and the ocular tubercle are many short, acute, 
black spines arranged more or less irregularly ; back of ocular tubercle 
on cephalothorax are two transverse rows of similar spines, and on 
Fig. 1—Sabacon spinosus. Male: A, palpus; B, eye eminence; C, distal tarsi 
of first leg. All magnified. 
