16 PROCEEDINGS OF THE NATIONAL, MUSEUM. vol.60. 



of setae, and caudad and laterad of them are four or five setae on 

 each side in two series, the total number of setae being thus 12 or 

 13; all are very short (pi. 4, fig. 1). Median piece of labrum large, 

 bearing six teeth. Coxae of second maxillae broadly united, pores 

 opening through mesal edge. The chitinous coxopleural suture is 

 strongly marked in its caudal half, becoming weaker anteriorly 

 where it curves around the ectal side of the pore. The lappets of 

 the first maxillae are long and conspicuous, but that of the second 

 joint is smaller proportionately to that of the first than in tardus. 

 Anterior margin of presternum with two reduced, almost obsolete 

 teeth. Femuroid of prehensors armed within at distal end with a 

 rounded tooth, claw at base with a dark, conical tooth. Other 

 joints unarmed (pi, 4, fig, 2), First spiracle vertically elliptic, 

 much larger than the second. The second and following spiracles 

 circular. Last ventral plate narroAv; sides converge caudad, more 

 strongly so toward caudal ends; caudal margin straight. Coxo- 

 pleural pores numerous, but fewer above than in tardus. Last dorsal 

 plate broader than in the latter species (pi. 3, fig. 5). Anal legs 

 in male but little thickened; with numerous very short hairs on 

 ventral surface of proximal joints. Pairs of legs (male), 59, 



Length, about 21 mm. 



Locality — Guatemala: San Rafael, June 4, 1914. (O. F. Cook), 



Type— 1^0. 24129, U,S,N.M. 



43. SUTURODES STOLLI (Pocock). 



Geopliilvs stolli Pocock, Biol. Centr. Amer. Chilopoda, 1896, p. 38, pi. 3, 



figs. 9-9c. 

 Pachymeriuni stolli Attems, Scluilze Forscliungsr. im West. u. Zentr. 

 Siidafrika, 1909, vol. 2, Abt. 1, p. 35, fig, 5, 

 This species is listed under Suturodes with but little doubt, al- 

 though I have not seen specimens of the form. Attems places the 

 species in Pachymeinum, of the Geophilidae proper; but his figure 

 shows a coxopleural suture as developed posteriorly. This suggests 

 the condition in the preceding species, in which the posterior part 

 of the suture is strongly chitinous and conspicuous, wliile the anterior 

 part is weaker and quite likely to be overlooked in the unmounted 

 maxillae. 



EXPLANATION 0¥ PLATES. 



The plates were drawn by the author. 



Plate 1. 



Neivportia divergcns. 



Fig. 1. Head and first segments, dorsal view X 17. 



Cryptops micrus. 

 2. Last leg, mesal view X 65. 



