Mr. Newport on the Class Myriapoda, Order Chilopoda. 393 



The posterior legs are moderately elongated, with the basilar and second joint equal and 

 narrowed. Superior surface subconvex, with the external margin subacute : internal 

 margin rounded, with two spines, the apical one elongated, hooked and bifid. Internal 

 surface smooth, with a single spine immediately below the marginal one. Inferior sur- 

 face convex, with two spines in a longitudinal series on the external side. Preanal scale 

 elongated, trigonate, with the angle rounded, and the posterior margin straight, with a 

 longitudinal impression, most strongly marked in the male. Anal appendages oliva- 

 ceous, minutely punctured, with the apex bifid. 



(c.) Antennae 18-articulatae, articulis elongatis; pedum pari postremo gracili baud armato. 



35. Scot, inermis, saturate castanea, dentibus labialibus 10 minutissimis, pedum paris pos- 

 tremi gracillimi articulo basali subcylindrico laevi nudo : spina articulari apice bifida, 

 squama praeanah elongata triangulari margine recta. — Long. unc. 5^. 



Hab. In Ora Tenasserim Peninsulffi Ulterioris Indiae Orientalis. {v. in Mus. Brit.) 



This species greatly resembles S. Gervaisii, but differs from it in the entire 

 absence of spines on the femora of the posterior pair of legs. 



36. Scol. Silheiensis, ferruginea, segmentorum marginibus posticis saturate viridibus, an- 



tennis articulisque tarsalibus metatarsalibusque rufescentibus ; unguibus nigris, pedum 

 paris postremi articulo basali coraplanato ; margine superiore interiore spinis tribus 

 acutis nigris uncinatis : superficie inferiore rotundata nuda, dentibus labialibus 10 mi- 

 nutis. — Long. unc. 5|. 



Var. a. Pedum paris postremi articulo basali basi paulum angustata, squama praeanali 

 elongata margine postico rotundata, corpore pedibusque coloris magis rufescentis. 



Hab. In Silhet Indiae Orientalis. {v. in Mus. D. Hope.) 



Cephalic segment convex, cordate, ovate, posterior border thin ; basilar segment lai-ge, trans- 

 verse; mandibular tooth large; labium smooth, sutures absent. Dental plates short, 

 transverse, bounding anteriorly a deep ovate impression on the labium; teeth ten, 

 minute, obtuse and coalescing, forming a rounded margin; posterior pair of legs 

 elongated, with the basilar and second joints equal, third joint a little shorter than the 

 second ; basilar joint slightly dilated, with the superior surface flattened and of equal 

 width throughout ; the external margin subacute, straight ; internal margin with three 

 strong spines, the middle one on the internal surface, the angular one bifid and elon- 

 gated ; inferior surface smooth, rounded, toothless. Second joint narrower than the 

 first, slightly constricted and rounded. Preanal scale elongated, concave, with the 

 lateral and posterior margins straight ; in the female rounded, 



3 F 2 



