S. bothriopus.
S. læte rubens, robusta; segmento cephalico sparse punctato, piloso; antennis pilosis, modice longis, haud acuniinatis; mandibulis pilosis, intus dente magno, conico, acuto armatis; labio piloso, antice profunde emarginato, medio canaliculato; scutis pilosis, latis, brevibus, sine suturis; pedibus plerumque flavis, dense pilosis, utrinque 50; paris postremi coxis magnis et foveis minutis multis impressis; sternis suturis sterno-episternalibus et sulco medio obsoleto signatis.
Bright red, robust; cephalic segment sparsely punctate, pilose; antennæ pilose, moderately long, not acuminate; mandibles pilose, within armed with a large, conical, acute tooth; labium pilose, anteriorly profoundly emarginate, medianly canaliculate; scuta pilose, broad, short, without sutures; feet generally yellow, densely pilose, 50 on each side; last pair with the coxæ large, and impressed with many minute pits; sterna marked with sterno-episternal sutures and an obsolete median sulcus.
S. bothriopus, Wood, Journ. A. N. S., new series, vol. v, 1863, p. 46.
The body is widest in the middle, but is much narrower at the anterior than at the posterior extremity. The last pair of feet are scarcely longer than the preceding. This species closely resembles G. rubens, Say, and may possibly prove identical with it, as the descriptions of that form are as usual quite meagre. Length, 1 inch.
Hab. Pennsylvania.
S. rubens.
S. "saturate aurantiaca; linea mediana duplici nigra e segmento corporis primo ad penultimuui ducta, segmento cephalico subcordato, antennis pilosis, labio mandibulisque lævigatis punctis raris, mandibulis nigris, pedum paribus 50. Long. unc. 1¼."
Deep orange, with a black double line passing from the first segment of the body to the penultimate; cephalic segment subcordate; antennæ pilose; labium and mandibles smooth, rarely punctate; mandibles black; pairs of feet 50. Length 1¼ inches.
Geophilus rubens, Say, Journ. Acad. Nat. Sci., Philada., 1st series, vol. ii; Œuvr. Entom. i, p. 25.
"" Gervais, in Ann. Sci. Nat., 1837, p. 52; Apt. iv, p. 320.
""Lucas, Hist. Nat. Anim. Art., p. 549.
""Newport, Ann. and Mag. Nat. Hist., xiii, p. 101; Linn. Trans., xix, p. 435; Catal. Brit. Mus. Myriapoda, p. 87.
"Hab. In America Boreali."
Species mihi ignota.
S. fulva.
S. fulvo-aurantiaca, polita; corpore antice attenuato; capite parvo; segmento cephalico subtriangulare, impunctato; antennis modice longis, filiformibus, haud acuminatis, sparse pilosis, articulis obconicis; mandibulis brevibus, crassis, singula denticulo modice magno conico; labio breve, antice medio valde emarginato, impunctato; scutis interdum linea media obsoletissima; pedibus modice longis, pilosis, gracilibus, cylindricis, utrinque 47; pari pos-
