PLATE IVa. 
Fig. 1. Bristles from the ventral group of the first foot of Lcetmonice 
producta, . . . . . . x 350. 
Fig. 2. One of the stouter superior bristles showing minute chitinous 
nodules. From the second foot of the same, . . . x 350. 
Fig. 3. Serrated bristle from the upper division of the ventral branch of 
the second foot in the same form, . . . . x 90. 
Fig. 4. Spinose bristle from the lower division of the ventral branch of the 
second foot of the preceding, . . . , . x 90. 
Fig. 5. Tip of one of the lustrous brown dorsal spines (of medium size) of 
the same species, ...... x 90. 
Fig. 6. One of the same with the chitinous sheaths or guards from the 
ninth foot, . , . . . . . . x 90. 
Fig. 7. Tip of a spine showing an alternate arrangement of the recurved 
teeth from the same species, . . . . x 55. 
Fig. 8. Tip of one of the fully formed ventral bristles of the foregoing, . x 55. 
Fig. 9. Tip of one of the dark brown dorsal spines of Lcetmonice producta, 
var. wyvillei, . . . . . . . x 90. 
Fig. 10. Tip of one of the ventral bristles of the same form, . . x 55. 
Fig. 11. Portion of the distal region of one of the simple inner dorsal 
bristles of the same, showing the nodes, which are better 
marked than in proper, . . . x 350. 
Fig. 12. Portion of one of the fine dorsal bristles overlapping the scales of 
Lcetmonice producta, henthcdiana, . . . x 350. 
Fig. 13. Portion of the shaft (a short distance below that figured in PI. Va. 
fig. 10) of one of the dorsal spines of Lcetmonice japonica, . x 90. 
