PLATE CXXIIL 



Fig. 

 1 and r. Paleaa of outer row of the " crown" of Tetreres rrmrata, Allen, the second figure 



more highly magnified. 

 1 a. Exterior palea of the same row. X Zeiss oc. 2, obj. A. 

 1 b and 1 b'. Palese of the inner row, the first figure more highly magnified. X oc. 2, 



obj. A. 

 1 c. Capillary bristle of first set. X oc. 2, obj. A. 

 1 d. Anterior dorsal bristle. X 1 in. Beck. 



1 d'. Tip of anterior oar-shaped bristle. X oc. 4, obj. A. Enlarged. 

 1 d". Paddle-shaped bristle. X oc. 4, obj. A, with draw-tube. 

 1 e. Whorled anterior ventral bristle. X oc. 4, obj. A. 

 1 e' Portion of foregoing more highly magnified. 

 If. Anterior hook. X oc. 4, obj. F. 

 1 g. Posterior hook, x oc. 4, obj. F. 



1 h. Great anterior dorsal hook, x Beck 2 in. 



2. Spiked palese of crown of Sabellaria spinulosa, R. Leuckart. X oc. 4, obj. A. 



2 a. Bill-hook palea. X oc. 2, obj. D, with draw- tube. 



2 b. Shorter palea of same type. X oc. 2, obj. A, with draw-tube. 



2 c. Three spine-like simple bristles of the first series. X oc. 4, obj. D. 



2 d. Oar-shaped anterior bristle. X oc. 2, obj. D, with 1-in. draw-tube. 



2 e. Tapering serrated bristle with whorls of spikes from the dorsal series of the second 



foot. X oc. 2, obj. D, with 1-in. draw-tube. 

 2/. Whorled bristle of the ventral series. X oc. 4, obj. D, with draw-tube. 

 2g. Portion of the foregoing. X oc. 4, obj. F. 



2 h. Hook, x oc. 4, obj. F. 



2i. Tip of ventral curved, brush-like bristle. X oc. 2, obj. D, with 1-in. draw-tube. 



3. Palea of Sabellaria alveolata, L., from the outer row. X oc. 4, obj. A. 



3 a. Geniculate palea from the second row, from Naples. 



3 b. Palea from the third row (hatchet-like). X oc. 2, obj. D. 



3 d. Anterior hook. X oc. 4, obj. F. 



3 e. Posterior hook. X oc. 4, obj. F. 



3 x. Tip of spiked bristle. X oc. 2, obj. D, with ^-in. draw-tube. 



4. Tip of caudal hook of Pectinaria belgica, Pallas. X oc. 4, obj. A. (Vide p. 38.) 



