38 CHILOPODA. 
uncovered both above and below, closely porous throughout ; sternite small, narrow, parallel-sided, longer 
than wide ; /egs in female long, slender, longer than the preceding pair, without a claw. 
Number of pairs of legs 73-75. 
‘Length up to about 50 millim. 
Hab. Mexico, Omilteme in Guerrero 7000 to 9000 feet (H. H. Smith). 
This species and G. toltecus were taken in considerable numbers from beneath rotting 
logs at Omilteme. Until examined somewhat closely, the two appear identical ; but 
G. godmani may, in reality, be easily recognized by its much narrower anal tergite and 
larger and more inflated anal pleura, not to mention the greater number of its legs. 
4. Geophilus salvini, sp.n. (Tab. III. figg. 10, 10 a-c.) 
Colour testaceo-ochraceous, with a median dorsal fuscous band more or less clearly defined in the anterior half 
of the body, but gradually disappearing posteriorly ; head, antenne, and maxillipedes pale castaneous. 
Body slender, a little attenuated posteriorly. 
Head polished, somewhat coarsely punctured, considerably longer than wide, its sides nearly straight and sub- 
parallel, convex and somewhat abruptly converging before the anterior and posterior border, posterior 
border straight. 
Prebasal plate invisible ; basal plate punctured, much wider than long, its sides straight and strongly con- 
verging, its posterior border narrower than the anterior border of the first tergite. 
Antenne short and thick, nearly evenly thick throughout, sparsely hairy at the base, thickly hairy distally ; 
segments a little narrowed at the base, apical segment ovate and longer than the penultimate. 
Mawillipedes shining, punctured ; coxal plate mesially impressed, only a little wider than long, nearly parallel- 
sided, without chitinous lines, the anterior border bidentate ; jaws long and somewhat slender, largely over- 
lapping the head ai the sides and a little overlapping it in front, the joint of the claw being about on a 
level with the anterior angles of the head, the femoral segment bearing a single internal distal blunt 
tooth, and the claw armed with a basal sharp tooth. 
Tergites smooth, except the first and a few of the last bisulcate, the space defined by the sulci bearing a con- 
spicuous impression on each side of the middle line, giving the tergites the appearance of being quadri- 
sulcate ; prescuta nearly as wide as the tergites, and not sulcate. 
Sternites with a deep median impression and, in the anterior half of the body, shallow impressions on each side. 
Pleural prescuta larger than the tracheal sclerites, which are in contact with the tergites. 
Anal somite: tergite large, about as wide as long, narrowed posteriorly, not covering the pleure; pleure 
moderately inflated, furnished below with large somewhat scattered pores; sternite narrow, about twice 
as long as wide, its sides gently converging posteriorly; prosternal pieces distinct; legs short, a little 
longer than the preceding pair, furnished with longer and shorter hairs, composed of six segments, and 
not armed with a claw. 
Number of pairs of legs 71. 
Length about 43 millim. 
Hab. Mexico, Teapa in Tabasco (H. H. Smith). 
5. Geophilus stolli, sp.n. (Tab. III. figg. 9, 9 a-c.) 
Colour: body, legs, and antenne pale yellow; head and maxillipedes pale castaneous. 
Body narrowed posteriorly. 
Head parallel-sided, coarsely punctured. 
Antenne narrowed distally, hirsute in their proximal half, much more closely and shortly hairy distally. 
Maszillipedes sparsely hairy and punctured; coxal plate large, parallel-sided; its anterior border mesially 
rather deeply notched and weakly bidentate; the jaws largely overlapping the head laterally and in front, 
the joint of the claw, however, falling short of the anterior edge of the head-plate; the basal segment 
