ON THE CHJLOPODA OF NORTH AMERICA. 31 



antecedent or subsequent naturalist. If this should prove a new species, we would 

 propose the name nesuphila. We subjoin the following description : — 



S. brunnea, robusta ; capite magno, sparse minute punctata, segmento basali maximo; niandibulis ma^nis 

 punctatis, singulo dente magno et tuberculo minirao; labio lato, valde convexo, punctata; laminis dentali- 

 bus longitudine fere bislatioribus, singula dentibus 5, obtusis, coadunatis armata; antennis antice 

 pubescentibus ; pedibus robustis; pedibus postremis gracilibus, supra complanatis, articulo basali tibiali 

 vix longiore, margine interiore superiore spina 1, superficiebus interiore et inferiore singula spinis 

 duobus, processu angulari, elongato, spinis duobus armato; appeudicibus analibus lateralibus dense rude 

 punctatis, obtusis, apice decurvato aliquando spina obtusa; squama preanali media leviter canaliculata- 

 sternis punctatis. 



As our specimen has been preserved for some years in alcohol, the color may differ 

 materially from that of the living animal. The antennae both being broken, we are 

 unable to give the number of joints composing them. The scuto-episcutal sutures are 

 distinct, as are also the sterno-episternal. The lateral margins of the scuta are much 

 thickened ; the posterior angles of some of the hinder ones rounded. The last pair of 

 feet are very slender when compared with the body. The lateral anal appendages 

 have a corroded appearance and are very dark colored. Their apices are very obtuse 

 and strongly curved downwards, one of them being armed with a small and very 

 blunt spine, which is indeed more of a tubercle than a spine. The preanal scale is 

 somewhat elongate, narrowed, and with its angles rounded posteriorly. 



164 | 1 | Oahu or Maui. | U. S. Explor. Exped. | C. P. | Unc. 7 | 



S. COMI-ressipes, n. sp. — S. olivacea; capite magno, minutissime sparse punctata, segmento cephalico 

 elongato, ovato, prebasali nullo, basali maximo; antennis 20 articulatis ; laminis dentalibus latis, margine 

 antico rotundato ; dentibus 10, roagnis, conicis, acutis, utrinque tribus intimis coadunatis, duobus ex- 

 timis sejunetis; pedibus valde compressis ; pari postremo luteolo, robusto, supra complanato, subtus valde 

 convexo, articulis basali tibialique supra marginibus elevatis subacutis; basali margine interno supe- 

 riore quinque-spinoso, superficie inferiore spinis 8 — 10 triseriatis alternantibus; processu angulari 

 elongato, spinis 4; articulo tarsali supra complanato, marginibus superioribus subacutis sed haud elevatis ; 

 appendicibus analibus lateralibus brevibus, apicibus acutis, singulo spinis 4 — 6; squama preanali breve. 



The scuta have apparently been bordered posteriorly with green and the antenna? 

 light yellow, but long preservation in spirits has rendered the color indefinite. Scuto- 

 episcutal sutures traceable, divergent posteriorly ; sterno-episternal very well marked. 

 Terminal scutum large, its posterior margin slightly arched, its breadth nearly twice 

 its length. Preanal scale short, much narrowed posteriorly, and with its posterior 

 angles slightly rounded. This may be & Tongana, Gervais, Apt. iv. 276, but we can- 

 not decide from M. Gervais' description. 



161 | 1 | Fejee Islands. | U. S. Expl. Exp. | | Unc. 3 | 



S. repens, n. sp. — S. brunnea ; capite modico, sparse minute punctato, segmento cephalico ovato, lato ; an- 

 tennis 19? articulatis; dentc mandibulari modico; laminis dentalibus longitudine bis latioribus, et 

 labio sparse punctatis; dentibus labialibus 10, distinctis, utrinque tribus intimis coadunatis, duobu.- 



