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



Sectio A. 



Pedum paris postremi articulo basali complanato, brevi, crasso ; spinis in superficie inferiore 

 numerosis, in seriebus longitudinalibus tribus dispositis. Antennae plerumque 20-arti- 

 culatae. 



1. Scot, angulipes, testacea, capita pedibusque postremis ferrugineis, his brevissimis crassis; 



articulo basali triangulari complanato marginibus subelevatis : margine interiore spinulis 



6 superficieque interna spinula unica. — Long. unc. 4j. 

 Scol. angulipes, Newp. I. c. p. 97. sp. 10. 

 Hab. In Insula Madagascar, {v. in Mus. Brit.) 



Cephalic segment small, cordate ; basilar segment and body yellowish, with the labium and 

 mandibles ferruginous: labial sutures distinct; dental plates lozenge-shaped; teeth 

 eight, small and distinct, but obtuse, with the margin arched. Mandibular tooth large ; 

 posterior pair of legs very thick, short, with the joints triangular, Superior surface of 

 the basilar joint flat, Avith acute, slightly elevated margins ; the internal one with six 

 minute spines, the four anterior of which are very small, and arranged in two series, 

 closely approximated ; the fifth intermediate between these and the sixth or apical one, 

 which is very large and quadrifid at the apex ; internal surface flat, with a single tooth 

 near the inferior border; inferior surface rounded, with nine teeth arranged in three 

 alternating longitudinal series, three in each series, as in S. morsitans. Second joint 

 with the superior surface somewhat convex in the middle, with the margins free and 

 elevated, inclosing an elongated oval space. Lateral anal appendages small, obtuse, 

 with the apex multifid. Preanal scale four-sided, short, cordate, with the posterior mar- 

 gin rounded. 



This species is distinctly allied to S. morsitans, Linn., and might at first 

 sight be mistaken for it, but it differs in the legs being shorter and thicker, 

 and more triangular, in the form of the dental plates, and in the colour of the 

 head, posterior legs and body. 



2. Scol. morsitans, viridi-flavescens, segmentis plerumque marginatis, dentibus 8 brevibus 

 obtusis ; margine dentali rotundato, pedum paris postremi articulis femorali tibialique 

 marginibus superne liberis elevatis ; femoralis superficie interiore spinulis 5 v. 6 nigiis 

 quarum posteriore apicalive magna quadrifida : inferiore spinulis 9 triseriatis alternan- 

 tibus. — Long. unc. 2| — 3. 



Scol. morsitans, Linn. Syst. Nat. 



Scol. marginata. Say, in Journ. Acad. Nat. Sci. Phil. 1821, p. 9. et in (Euvr. Entom. ed. Gory, 

 livr. i. p. 22. 



