Bull. U. S. F. C. 1900, Vol. 2. — H. F, Moore. (To face page 1 76.) 
Plate 1 1 . 
Figs. X— tj. Cleanlis planicaiula Ben. — Fig. 1, animal, x 3.3. Fig. 2, first antenna, x 1(5. Fig. 3, second antenna, x 16. Fig. 4, first leg, x 16. 
Fig. 5, fourth leg, x 16. Fig. 6, seventh leg, x 16. 
Figs. 7-12. Ligia gracilis, n. sp. — Fig. 7, animal, x 3. Fig. 8, second antenna. Fig. 9, first leg, left. Fig. 10, fourth leg, left. Fig. 11, seventh 
leg, left. Fig. 12, telson and uropods, x 11. 
Figs. 13-17. Philoscia culebne, n. sp. — Fig. 13, animal, x 7. Fig. 14, antenna, x 33. Fig. 15, mandible, x 77. Fig- 16, first leg, x 33. Fig. 17, 
fourth leg, x 33. 
