10 



Garamaridae 365 



Peraeopod 5 long, 2d Joint moderately 



expanded 5. Gen. Crangonsrx p. 370 



Peraeopod 5 short, 2d Joint greatly 



expanded 6. Gen. Hyalellopsis p. 374 



Telson sometimes entire, sometimes 



emarginate ox" cleft 7. Gen. Pallasea p. 374 



Telson entire, with or without emar- 



gination — 8. 

 Telson cleft — 15. 



J Telson not emarginate — 9. 

 ) Telson emarginate — 11. 



j Uropod 3, rami long 8. Gen. Weyprechtia p. 380 



) Uropod 3, rami short — 10. 



J Antenna 1, accessory flagellum short 9. Gen. Paramicruropus . . . p. 382 

 \ Antenna 1, accessory flagellum long 10. Gen. Parapherusa p. 383 



( Uropod 3, inner ramus longer than outer 11. Gen. Amathillopsis .... p. 384 

 II 1 Uropod 3, inner ramus shorter than 

 I outer — 12. 



12 

 13 

 14 

 15 



16 



17 



18 

 19 



20 



Uropod 3, inner ramus well developed 12. Gen. Gaminarelliis .... p. 386 

 Uropod 3, inner ramus very short — 13. 



Body smooth 13. Gen. Eucrangonyx . . . . p. 388 



Body with dorsal carina — 14. 



Peraeopods 3 — 5 rather short .... 14. Gen. Axelboeckia p.391 



Peraeopods 3 — 5 very long 15. Gen. Brachynropus .... p. 392 



Antenna 1 without accessory flagellum 16. Gen. Macrohectopus . . . . p. 394 

 Antenna l with accessoiy flagellum — 16. 



I Antenna 1, accessory flagellum 1- or 2- 

 jointed — 17. 

 Antenna 1, accessory flagellum of more 

 than 2 joints — 29. 



{31axilla 1, 2d joint of palp not longer 

 than ist 17. Gen. Cardiophilus p. 395 

 Maxilla 1, 2d Joint of palp longer 

 than Ist — 18. 



f Uropod 3 short — 19. 



\ Uropod 3 well developed — 20. 



f Body more or less carinate 18. Gen. Brandtia p. 395 



\ Body not carinate 19. Gen. Micruropus p. 398 



Uropod 3, outer ramus much longer 

 than inner — 21. 



\ Uropod 3, outer ramus not much longer 



than inner — 25. 



„^ j Uropod 3, outer ramus 1-jointed . . 20. Gen. Neoniphargus .... p. 404 

 \ Uropod 3, outer ramus 2-jointed — 22. 



{Maxilla 1, inner plate with few setae . 21. Gen. Niphargus p. 405 

 Maxilla 1, inner plate with many 

 setae — 23. 



t Uropod 3, 2d Joint of outer ramus 



Qo ) long 22. Gen. Eriopisa p. 411 



I Uropod 3, 2d Joint of outer ramus 

 ' very short — 24. 



