PLATE CXXIX. 
Fie. 
1 and 1’. Anterior bristles of Dasychone argus, Sars, with moderately broad wings. 
x oc. 4, obj. D. 
1”. Antero-posterior view of the same. x oc. 4, obj. D. 
la. Tuft of bristles in anterior foot. x 60. 
1} and 10’. Posterior bristles. X oc. 4, obj. D. 
le. Tuft of bristles in posterior foot. x 60. 
1d. Transverse section of the bristles. x 180. 
le. Anterior hook. x oc. 4, obj. D. 
1f. Posterior hook. X oc. 4, obj. D. 
2. Bristle of Dasychone lucullana, Delle Chiaje, with broader wings. X oc. 4, obj. D. 
2a. Anterior slender curved bristle from Naples. x oc. 4, obj. D. 
2b. Anterior hook. X oc. 4, obj. D. 
3. Branchia of Laonome Kroyert, Malmgren. x Beck 1-in. 
3a. Tip of bristle with narrow wings. X oc. 4, obj. D, with 1-in. draw-tube. 
36. Bristle with somewhat broader wings. x oc. 4, obj. D, with 1-in. draw-tube. 
3¢. Oar-shaped bristle with broad wings.  X oc. 4, obj. D, with 1-in. draw-tube. 
3d. Anterior hook. x oc. 4, obj. D, with 1-in. draw-tube. 
3e. Posterior hook. x oc. 4, obj. D, with 1-in. draw-tube. 
4. First series of winged bristles of Jasmineira elegans, De St. Joseph. x oc. 4, 
obj. D, with draw-tube. 
4a. Anterior bristle with somewhat wider wings. X oc. 4, obj. D. 
4b. Spatulate form. x oc. 4, obj. D. 
4c. Long slender form near the tip of the tail. X oc. 4, obj. F. 
4d. Long anterior hook. X oc. 4, obj. D, with draw-tube. 
4.e. Posterior hook. xX oc. 4, obj. F. 
5 and 5’. Anterior winged bristles of Orta Armandi, Claparéde. X oc. 4, obj. F. 
5a. Slender simple bristle. x oc. 4; obj. FH. 
5. Anterior long crotchet. x oc. 4, obj. F. 
5c. Posterior hook. xX oc. 4, obj. F. 
6. One of first bristles of Chone infundibuliformis, Kroyer.  X oc. 2, obj. D. 
6a. Posterior bristle. X oc. 2, obj. D. 
6b. Anterior hook. X oc. 2, obj. D. 
6b’. Two anterior hooks in skin. X oe. 2, obj. D. 
6c. Posterior hook. x 700. 
7. Anterior bristle of Aimphicora Fabricia, O. F. Miller. x oc. 4, obj. F, with draw- 
tube. 
7a. Anterior hook. x oc. 4, obj. F, with draw-tube. 
8. Anterior hook of Huchone rosea, Langerhans. X oc. 4, obj. F. 
8a. Posterior hook. xX oc. 4, obj. F. . 
9. Ovum of Nicolea venustula, Montagu. x oe. 1, obj. D. 
