404 Mr. Newport on the Class Myriapoda, Order Chilopoda. 



Esq., F.R.S., chief officer of the Zoological department of the British Mu- 

 seum. 



56. Scol. complanata, corpore pedibusque postremis rufescentibus, segmentis mediis prae- 

 sertim dilatatis, dentibus 8, labio mandibulisque rufis apice nigris, antennis pedibusque 

 virescentibus, pedibus postremis angustis complanatis spinis in superficie interna in- 

 fernaque numerosissimis. — Long. unc. 5. 



Scol. complanata, Newp. I. c. p. 98. 



Hab. In Insula Caribaea S tJ Christophori. (v. in Mus. Brit.) 



Cephalic segment cordate, ovate; mandibular tooth large, with a minute tubercle at its 

 base ; labium smooth, transverse, sutures distinct ; dental plates quadrate ; teeth eight, 

 the external one on each side acute, the internal one notched and very much dilated, 

 spatuliform at its anterior margin ; antennas longitudinally striated with minute hairs 

 at the apex ; posterior pair of legs with the basilar joint elongated, superior surface 

 flattened, with the internal margin and surface armed with from twenty-one to twenty- 

 four minute spines, arranged in three irregular oblique series ; internal angular process 

 quinquefid, with two of the spines elongated and hooked downwards ; sometimes one 

 or two spines on the superior surface of the joint; inferior surface with seventeen small 

 black spines, thirteen of which are arranged in three alternating longitudinal series, 

 and the remaining four disposed in a triangle or quadrangle at the inner inferior sur- 

 face of the base of the joint. Lateral anal appendages short, with the process quin- 

 quefid, and four minute tubercles on the posterior margin. Prcanal scale small, elon- 

 gated, very narrow posteriorly, with the margin straight. 



57. Scol. incerta, brunnea, capite mandibulis labio appendicibusque lateralibus saturate 

 rufis, antennis pedibusque flavis, dentibus 6 nigris obtusis, pedibus postremis compla- 

 natis angustis elongatis; articulo basali subconvexo spinis ultra 20 acutis nigris in 

 superficie superiore interna ; processu articulari elongato mammillari multifido.— Long, 

 unc. 5\. 



Hab. ? (v. in Mus. D. Hope.) 



This species so very closely resembles 8. complanata, that I have some doubt whether it 

 ought to be described as distinct; but it seems to differ in some peculiarities which 

 usually afford good distinctions of species. The cephalic segment is small, cordate, 

 ovate, with its posterior margin almost circular, and there are two longitudinal eleva- 

 tions on its surface, and also two oblique ones on the basilar segment, as in S. Grayii. 

 The dental plates are subquadrate, with a deep sulcus; teeth six, obtuse, the external 

 one distant; labium smooth, with scattered obsolete punctures, and a transverse ridge 



