295 



extremities. The hindmost sides of the thoracic segment cover the 

 edges of the two following segments, and its fore sides are covered by 

 the edges of the five segments that precede the last. The segments 

 are black, shining, without hairs, and thickly and very minutely pmic- 

 tured, having on the hind boi'der a white band, broadest at the sides. 

 It unfolds itself very slowly and imperceptibly. When laid on its 

 back it bends itself into the form of the letter S in attempting to re- 

 gain its feet. It is very slow in its movements, and when walking 

 taps the ground with its antenna? alternately. The antenna? are seat- 

 ed in front of the head near the mouth, and are 7-jointed, black, shin- 

 ing, punctured, subclavate, not longer than the head, slightly pubes- 

 cent towards the tips; the first and second joints are short, the third 

 much longer ; the fourth much shorter than the third and a little short- 

 er than the fifth ; the sixth somewhat longer than the third ; the se- 

 venth very short, obtuse, and but just appearing beyond the tip of the 

 sixth. The antennae are thrice bent, and lodged, w^hen in repose, in 

 a winding furrow between their base and the eyes, which extend along 

 the hind border of the sides of the head and are granulated. 



Glomeris plumheits. The first pair of legs have 2-jointed thighs 

 and distinct claws, and therefore have not a tendency, like those of 

 Julus, to be transformed into palpi. The clypeus is unidentate. — Sa- 

 vigny. The head has nearly the shape of a semicircle, of which the 

 hind border forms the chord, or rather a rim behind which the head 

 becoming naiTower is introduced under the margin of the following 

 segment. It seems to form one uninterrupted segment, though the 

 presence of a suture on its margin, between the eyes and the base of 

 the antennae, indicates that there are two. Behind the head is a small 

 segment in the form of a semicircle, of which the chord is next the 

 head, it has three sutures along the fore border, and it bears one pair 

 of legs, which are short, black, shining, smooth, clothed with a few 

 hairs, and 6-jointed ; the first joint is short; the second long, and 

 broader towards the tip and concave on the inner side ; the third and 

 fourth are short ; the fifth is nearly as long as the second, and nar- 

 rower toward the tip ; the sixth is short, white, slightly curved, and 

 like a bristle or claw. The second or thoracic segment is large, and 

 double the breadth of the first, and passes over the border of the fol- 

 lowing, which follows the like plan, as do all the rest which are 12 in 

 number ; they are convex in front, rounded on the sides, and have the 

 hhid border straight. Two or three, and on either side four sutures 

 extend along the fore border, and mark the space that is attached by 



