CLASS II. MYEIAPODA. .115 



Fam. III. Po LYDESMiD^. Leach. 

 Ei/ii obsolete. 



Genus 4. POLYDESMUS, Latr., Dumir., Leach. 



AntentKE with the second joint scarcely longer than the first, and much 

 shorter than the third: bodij linear; the segments laterally com- 

 pressed, margined : eyes ohsolcte. 



Sp. 1. Pol.complanutas. Reddish cinereous; last segment of the body 

 mucronatcd. 



Juhis complanatus. L'uin. Sj/st. Nat. i. 1065, Falir. Etit. St/st. ii. 393. 

 Polydesmus complanatus. Latr. Gen. Crust, et Lisect. i. 70. Leach, 

 Editt. Enci/cl. v'li. 408. — Trans. Linn. Soc.xi. 381. — Suppl.to Encycl. 

 Brit. i. 430. pi. 11. — Zool. Misc. iii. tab. 135. 



Inhabits Europe, beneath stones. 



Genus 5. POLLYXENUS. Latr., Leach. 

 Body elongated, linear, and depressed; the segments on each side with 



small bundles of scales, ending in pencils : feet twelve on each side: 



antemue inserted beneath the head at the interior margin. 

 Sp. 1. Pol. Lagurus. Body brown; head black: the pencils of the tail 



white. 

 Scolopendra Lagura. Linn., Fabr. Pollyxenus Lagurus. Latr. Gen. 



Crust, et Lisect. i. 77. Leach, Zool. Misc. iii. p. 38. pi. 135, B. Cuv. 



Reg. An. 3. 155. 

 Length of the body from 1-i to Q.^ lines. 

 Inhabits Europe. In Britam it is found in profusion beneath the bark 



of trees. 



Order II. SYNGNATHA. 



Fam. I. ScoLOPENDRAD.E. Leach. 



Body with each segment bearing two legs: hinder legs distinctly longer 

 than the others. 



8tirps l.-^Legs on each side fifteen. 



Genus 6. LITIIOBIUS. Leach, Lamarck. 



Antenna conic-setaceous ; joints (about forty-five) conic-setaceous, the 

 two first joints largest: under Up anteriorly broadly notched; the 

 margin very much denticulated : eyes granulated. 



Sp. 1. Lith.forficatus. Head broad : under lip entirely and deeply co- 

 vered with impressed dots ; legs testaceous-yellowish. 



Scolopendra forficata. Linn.Syst. Nat. i. 106'i. Fabr. Ent. Syst. n. 390. 

 Lithobius forficatus. Leach, Edin. Encycl. vii. 408. — Trans. Linn. 

 Soc.xi. 381. — Sapp. to Encycl. Brit. i. 431. pL 2'i. — .Zool. Misc. iii, 

 tab. 137. 



Inhabits Europe, beneatli stones. 



