NO. 3 BARNARD : THE PHOXOCEPHALIDAE 195 



24. Third pleonal epimeron lacks setal row uncinatus 



25. Third pleonal epimeron with oblique lateral setal row 26 



25. Third pleonal epimeron lacks setal row 29 



26. Epimeral setal row short australis 



26. Epimeral setal row long 27 



27. Peraeopod 5, article 2 narrowing distally obliquus 



27. Peraeopod 5, article 2 widening distally 28 



28. Telson, each lobe with 2 setae calcaratus 



28. Telson, each lobe with one seta pyripes (=maximus) 



29. Peraeopod 5 with large spur on article 2 uncigerus 



29. Peraeopod 5 lacks large spur on article 2 30 



30. Gnathopod 1, article 6 very slender stebbingi 



30. Gnathopod 1, article 6 broad 31 



31. Gnathopods 1-2, sixth articles differ in size tatter salli 



31. Gnathopods 1-2, sixth articles alike in size 32 



32. Epistome produced 33 



32. Epistome not produced 34 



33. Epistome large similis 



33. Epistome small cognatus 



34. Uropods 1-2, inner and outer ramal spines dissimilar sinuatus 



34. Uropods 1-2, inner and outer ramal spines similar 35 



35. Female uropod 3, inner ramus half the length of outer 



ramus, or less 36 



35. Female uropod 3, inner ramus more than half the length 



of outer ramus 38 



36. Peraeopods lack stout spines oculatus (=?naculatus) 



36. Peraeopods armed with stout spines 37 



37. Gnathopods 1-2, article 4 produced simplex 



37. Gnathopods 1-2, article 4 not produced spinosus 



38. Third epimeron poorly setose, broadly 



attenuated behind rotundifrons 



38. These characters not combined 39 



39. Peraeopod 3 very stout villosus 



39. Peraeopod 3 slender 40 



40. Third epimeron, posterior edge usually concave or 



straight, setose, head long obtusidens 



40. Third epimeron, posterior edge convex, poorly 



setose, head short fuegicnsis 



Not included is P. centralis Schellenberg 1938, which is indistinguishable as a 

 specific entity 



