no 



THE MYRIAPODA OF NORTH AMERICA. 



topsposiica ( C. poslica, Say), except as to the ryes and teeth. Is it possible that Mr. 

 Newport is mistaken as to tin- possession of eyes > Say certainly did not see them. 

 Length 1 : ! inches. 



Hdb. North Carolina. — Dr. Wm. Stimpson. — Smithsonian Collection. 



Fig. 10. 



Fi£ 11. 



O. SPINICAUDA. 



0. aurantiaca; capite polifo, punctata; segmento basali depressione magna triangulari mediana; antennis 17 

 articulatis, antice pubescentibus ; laminis dentalibus, labio mandibulisque subprofunde punctatis, rnargine antico 

 rotundato; denticulis labialibus 4, parvis, arete coadunatis, indistinctissimis ; labio medio antice subcarinato; 

 scuto postremo maximo, subprofunde punctato, alteris fere bis majore, lateribus rotundatis, marginibus lateralibus 

 valde elevatis ; pedibus postremis robustis, supra complanatis, intus com plana tis et rude punctatis, articulo basali 

 tibiali fere acquali ; femore, tibia, tarsisque margine interiore supcriore acuto et serrulato, fern ore tibiaque margine 

 interiore inferiore quo(|ue acuto et serrulato; processu angulari parvo, spina unica robusta acuta ; appendicibus 

 analibus lateralibus angustis, postice truncatis, dense profunde punctatis, singula spina unica apicali minutissima; 

 squama preanali elongata, subprofunde punctata, media leviter canaliculata. (Figs. 8, 9, 10, 11.) 



Orange ; bead polished, punctate ; basal segment with a large median triangular depression ; antenna: 16 articu- 

 late, distally pubescent ; dental lamina, with the labium and 

 mandibles subprofoundly punctate, anterior margin rounded ; 

 labial denticules 4, small, closely coadnate, very indistinct; 

 labium medianly anteriorly subcarinate ; last scutum very 

 large, subprofoundly punctate, almost twice as large as the 

 others, with its sides rounded, its lateral margins very much 

 elevated; last pair of feet robust, above complanate, within 

 eomplanate and rudely punctate; basal and tibial joints about 

 equal ; interior superior margin of the femur, tibia and tarsi 

 acute and serrulate; the interior inferior margin of the femur 

 and tibia also acute and serrulate; angular process small, with 

 a single acute robust spine; lateral anal appendages narrow, 



posteriorly truncate, densely profoundly punctate, each with a very minute apical spine; preanal scale elongate, 



Bubprofoundly punctate, medianly lightly^canaliculate. 



O. SPINICAUDA, Wood, Journ. A. N. S., new series, vol. v, 1863, p. 36. 



The color varies greatly in depth <>f shade, but the two ends are almost always darker 

 than the intermediate portion of the body; the feet, with the exception of the last pair, 

 are generally lighter. The cephalic segment is slightly emarginate in front. The suture 

 between the true basilar segment and the prebasilar fold is very deep; it is formed by two 

 lines rapidly divergent from the centre, and at the central portion then- is quite a large 

 triangular depression. In some specimens the scuto-episcutal sutures are well-marked. 

 The posterior borders of the scuta are straight. The terminal scutum is nearly twice as large 



