Ten body rings, not counting the neck-plate. Thirteen pairs of limbs. Eyes hard to find, on the lateral corner of the head (Fig. 18, p. 37). Family 2. _Glomeridae._ 11 body rings. 17 pairs of legs. Eyes arranged in a row curved outwards. [Illustration: FIG. 19.—_Glomeris marginata._ (From C. L. Koch, _Die Myriapoden_.)] Family 3. _Sphaerotheriidae._ 12 body rings. 19 pairs of legs. Eyes crowded together in a cluster. [Illustration: FIG. 20.—_Sphaerotherium grossum._ (From C. L. Koch, _Die Myriapoden_.)] Family 4. _Julidae._ Body cylindrical. More than 30 body rings. Many eyes crowded together in a cluster. [Illustration: FIG. 21.—_Julus nemorensis._ (From C. L. Koch, _Die Myriapoden_.)] {44}Family 5. _Blanjulidae._ Thin cylindrical body with more than 30 body rings. Eyes either absent or in a simple row beneath the edge of the forehead. [Illustration: FIG. 22.—_Blanjulus guttulatus._ (From C. L. Koch, _Die Myriapoden_.)] Family 6. _Chordeumidae._ Resemble the _Polydesmidae_ (Fam. 7), but the head is longer and less rounded in the forehead. The antennae are placed more at the side of the head. Eyes small and numerous, in a cluster. Body rings always 30 (Fig. 16). Family 7. _Polydesmidae._ Body cylindrical, with a lobe or keel on the posterior part of the upper surface of the body ring. Always 19 body rings. No eyes. [Illustration: FIG. 23.—_Polydesmus collaris._ (From C. L. Koch, _Die Myriapoden_.)] Family 8. _Polyzoniidae_. Body with varying number of rings arched transversely downwards and sharp at the sides. The anterior part of the ring somewhat hidden. The eyes in a simple row. The stigmata very small and placed near the lateral corner of the body ring. Head small in proportion to the body. [Illustration: FIG. 24.—_Polyzonium germanicum._ (From C. L. Koch, _Die Myriapoden_.)] Order II. CHILOPODA (or SYNGNATHA). Antennae with many joints, at least 14. Only one pair of legs to each body ring. The genital opening on the last ring of the body. Bases of the legs widely separate. There are four families in this Order:— {45}Family 1. _Lithobiidae._ Body with 9 principal and 6 subsidiary rings. On both principal and subsidiary rings one pair of legs, except on the last ring of the body. Many eyes; the posterior ones large and kidney-shaped. The antennae with many rings. [Illustration: FIG. 25.—_Lithobius erythrocephalus._ (From C. L. Koch, _Die Myriapoden_.)] Family 2. _Scolopendridae._ Body with 21 or 23 rings, no intermediate rings. Every ring with one pair of legs. The last pair very long. Last pair at the point of the last ring. Four or no eyes. Antennae with 17 or 20 joints. (Fig. 15, p. 31). Family 3. _Notophilidae._ [Illustration: FIG. 26.—_Notophilus taeniatus._ (From C. L. Koch, _Die Myriapoden_.)]