156 PROCEEDINGS OF THE ACADEMY OF [Feb., 



plates with a icw scattered hairs, more numerous on posterior plates; 

 venter likewise nearly glabrous, except the last plates; antennte uni- 

 formly clothed with straight slender hairs of moderate length. Head 

 but little wider than long (10:9). Antennse: articles 39-44, mostly 

 very short, the ultimate about equal in length to the two preceding 

 taken together. Ocelli on each side: 11-13, arranged in 3 series 

 (1 +3, 4, 3-1 +4, 4, 4), somewhat distant from each other. Prosternal 

 teeth: 4-4, the 2 inner on each side rather closer together than others. 

 Spines of the first legs 1,3.1; penult legs with 2 claws, spines 1, 3, 3. 2 ; 

 anal legs with 2 claws, spines 1, 3, 3, 1; last 3 pairs of coxse armed 

 laterally with a stout spine, unarmed below or above. Coxal pores 

 I'ound, moderately large, 5, 5, 5, 4-5, 6, 6, 4 (5). Gonopods of 9 : 

 claw broad, tripartite, the middle lobe longest, slender and acute, 

 the side lobes short; basal spines 2-2, the outer stouter than the inner 

 and flattened distally. 



Length of body 13-16 nmi. ; width of Sth plate 1.6-2 nnn. ; length of 

 antennse 6.3-8 mm.; length of anal legs 5.4-7 mm. 



Habitat. — Portland., Greg. 



Etymology. — Latin bellulus, of pleasing appearance, graceful. 

 5. Lithobius remex sp. nov. 



Description. — Body brown, legs paler; head smooth; dorsal plates 

 nearly smooth, a little roughened by weak longitudinal folds; head 

 with a few long hairs ; dorsum \\\ih scattered short hairs ; ventral plates 

 smooth and glabrous ; legs sparsely pilose ; antennae rather sparsely 

 clothed with moderately long straight hairs ; prosternum with a few 

 hairs about margin ; claws of prehensorial feet with long hairs at base. 

 Head cordate, slightly wider than long. Antennse: articles 20, be- 

 yond the second short, except the ultimate Avhich is long, nearly equal- 

 ing in length the three preceding together. Ocelli on each side: 6, 

 arranged in 2 series (1+2, 3), deeply pigmented. Prosternal teeth 2-2. 

 Spines of the first legs 1, 2, 1; anal legs with the claw single, spines 

 1, 3, 2, 0, in thecJ' conspicuously expanded in a subvertical direction, 

 the plane of flattening more nearly horizontal distally, not produced 

 into lobes or knots; posterior pairs of coxse without trace of spines. 

 Coxal pores: pore-bearing groove deep, so that the pores are often 

 visible with difficulty from below, 3, 4, 4, 3, moderate. 



Length of body 8 mm.; width of Sth dorsal plate 1.1 mm.; length 

 of antennae 2.9 mm. ; length of anal legs 2.9 mm. 



Habitat. — Shasta Springs, Cal. 



Etymology. — Latin remex, an oarsman, the reference being to the 

 flattened anal legs of the d^. 



