THE MYRIAPODA OF NORTH AMERICA. 185 



latiore ; mandibulis magnis, singula intus denticulo magno aouto armata; dente mandibular!, gracile, longo; scutis 

 latis, brevibus, suturis scuto-episcutalibus nullis; pcdibus modice longis, utrinquc 69, pari postremo — (in mare?) 

 longo, valdc incrassato, illico acuminata, articulis obconicis — (in femina ?), parvo, gracile, articulis subcylindricis; 

 suturis sterno-cpisternalibus distinctis; squama preanali postice valde angustata. 



Orange, robust; head rather large, sparsely pilose; anterior margin of basilar segment somewhat greater than 

 posterior; mandibles large, — each armed on inside with a large, acute, denticule; mandibular tooth, slender, long; 

 scuta broad, short; scuto-episcutal sutures absent; feet rather long, on each side 69; last pair — (in male?) long, 

 very much thickened, rapidly acuminate, articles obconic — (in female?), small, slender, articles subcylindrical ; 

 sterno-episternal sutures distinct; preanal scale posteriorly very much narrowed. 



S. LyEViPES, Wood, Journ. A. N. S., new series, vol. v, 1863, p. 48. 



One of the specimens has the last pair of legs very thick and long and vertically com- 

 pressed. They are composed of eight joints, all of which are obconic except the last, 

 which is very short and rapidly acuminate. This individual is probably the male. The 

 other, the female, has the hindmost legs very slender, with the coxal joint proportionally 

 very much larger than in the male. 



Hub. Georgia. — Museum of Academy; Dr. J. L. Le Conte. 



S. TyENIOPSIS. 



S. dilute fulva; corpore valde depresso, modice lato, anticc leviter angustato; capite magno; segmento cephalico 

 subtriangulare ; antennis brevibus, moniliformibus, postice leviter depressis, crassis, antice cylindricis, haud acu- 

 minatis, pilis brevissimis mollibus paucis; labio breve, lato, antice obsolete bidentato, sulco mediano leviter im- 

 presso; mandibulis crassis; scutis brevissimis, sine suturis sed interdum linea mediana obscura; sternis brevis- 

 simis, singulo depressione submediana ovata. in corpore antico conspicuissima ; pedibus brevibus, crassis, cylin- 

 dricis, haud pilosis, utrinfpje 141, pari postremo (in femina?) gracile, breve. Long. unc. 4 J. 



Light yellow ; body very depressed, rather broad, anteriorly slightly narrowed ; head large ; cephalic segment 

 subtriangular ; antennas short, moniliform, posteriorly slightly depressed, thick, anteriorly cylindrical, not acumi- 

 nate, with a few soft, very short hairs ; labium short, broad, anteriorly obsolctely bidentate, impressed with a slightly 

 pronounced median sulcus; mandibles thick; scuta very short, without sutures, but with sometimes an obscure 

 median line; sterna very short, each with a single submedian ovate depression, most conspicuous on the anterior 

 portion of the body; feet short, thick, cylindrical, not pilose, on each side 141, last pair (in female ?) slender, 

 short. Length, 4 J inches. 



S. T.ENiopsis, Wood, Journ. A. N. S., new series, vol. v, 1863, p. 48. 



In the single specimen the color is very light, but originally may possibly have been an 

 orange. The body is almost destitute of polish. The epimeral plates are very large. I 

 am indebted to Dr. J. L. Le Conte for the specimen, which he captured in the mountains 

 of Georgia. 



vol. xin. — 24 



