ISOPODS OF NORTH AMERICA. 



461 



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Fig. 516.— Iolella speciosa (After Bovallius). a, Labrum. b, Inner antenna, x 20. c, 

 Dorsal view of animal, x 4. d, Auditory bristle from the third joint of the peduncle 



OF THE inner ANTENNA. 6, FiRST JOINTS OF THE FLAGELLUM OF THE INNER ANTENNA. X ItJO. 



/, Some articles of the flagellum of the outer antenna, x 60. <;, An olfactory gland of 

 SAME. X 260. h, Peduncle of outer antenna, x 15. i, The last joints of same, x 200. 



J, H^AD. X 10. 



