104 



MODERN SYSTEM, 



** Tail with the superior double sti/les, having the style processa 

 suhcqual. 

 Sp. 3. Gam. Locusta. Ei/es lunate. 

 Cancer Gammarus Locusta. Montagu, Trans. Linn. Soc. ix. 92. Gam- 



marus Locusta. Leach, Eilin. Encj/ct.\n. Wo. — Trans. Linn. Soc. xi. 



359. — Stipp. to Encycl. Brit. i. 425. 

 Inhabits the British sea. 

 Sp. 4. Gam. Camptolops. Eyes flexuous. 

 Gammarus Camptolops. Leach, Ediii. Encycl. vii. 403. — Trans. Linn, 



Sjc. xi. 3G0. — Sapp. to Enci/cl. Brit. i. 12o. 

 Inhabits the sea about Loch llanza, in the Isle of Arran. 



Genus 9. AMPITH()E. Leach. 



Superior antenna; with no seta at the base of their fourth joint: tail 

 bimple above : hands ovate. 



Sp. 1. Am. rubricata. 



Cancer Gammarus rubricatus. ^Fontagu, Trans. Linn. Soc. ix. 99. Gam- 

 marus rubricalus. J^ach, Edin. Encycl. vii. 402. Ampithce rubri- 

 cata. Leach, FJin. Enci/cl. vii. 432. — Trans. Linn. Soc. xi. 360, — 

 Sapp. to Encycl. Brit. i. 425. 



Inliabits tlie sea of the southern coast of Devon. 



Genus 10. THERUSA. Leach. 



Superior aideniite with no seta at the base of their fourth joint : tail sim- 

 ple above: AflWs filiform. 



Sp. 1. The. Fucicola. Testaceous-cinereous or gray cinereous mottled 

 with reddisli. 



Pherusa Fucicola. Leach, Edin. Encycl. vii. 432. — Trans. Linn. Soc. xi. 

 S60.—Sapp. to Enci/cl. Brit. i. 426. ;;/. 21. 



Inhabits fuci on the soulliern coast of Devon, 



Stirps 4. Antennrr {cmr-jo'mtcd ; under ones longest, leg-shaped, {Four 

 anterior legs monodactyle.) 



Subdivision 1. — Second pair of legs uilli a large hand. 



Genus 11. PODOCERUS. Leach. 

 iyes prominent : four anterior legs monodactyle. 



Sp. 1. Pod.variegatus. Body varied with red and white. 



Podocerus variegatus. Leach, Edin. Encycl. vii. 433. — Trans. Linn. 

 Soc. xi. 361. — Supp. to Encpcl. Brit. i. 426. 



Inhabits the southern coast of Devonshire, amongst confervas and co- 

 rallines. 



Genus 12. JASSA. Leach. 

 Eyes not prominent: four anterior legs monodactyle, with oval hand>j 

 secoud pair with its internal edge dentated. 



