298 A MONOGRAPH OF THE AJSTRALIAN APHRODITEA, 



Plate IX. 

 "Fig. 1. — Head of Lepidonotus simplicipes, from above, magnified. 

 ,, 2. — Ventral seta of the same, X 200. 

 j^ 3. — Ventral seta of Lepidonotus csololepis, y 375. 

 ,, 4. — Dorsal seta of the same, X 375. 

 ,, 5. — A portion of tlie subcuticular layer of the elytra of the 



same, X 500. 

 ,, 6. — A portion of dorsal seta of Lepidonotus torresiensis, x 375 . 

 ,, 7. — Ventral seta of Lepidonotus dictyolepis. 

 ,, 8. — Portion of dorsal seta of the same. 

 ,, 9. — Head of Lepidonotus Jacksoni, from above, magnified. 

 ,, 10. — Head of Antinoe prcsclara, from above, magnified. 

 ,, 11. — 14. — Various forms of the ventral setse of the same. 

 ., 15. — Dorsal seta of the same. 



,, 16. — Head of Antinoe ascidiicola. from above, magnified. 

 ,, 17. — Head of A. pachjlepis. 



Plate X. 

 Fig. 1. — Portion of one of the elytra of Antinoe pachjlepis, X 375. 



,, 2. — Papilla from the dorsal cirri of the same, X 500. 



,, 3. — Head and anterior region of the body of Polynoe. 

 asterolepis, from above, magnified. 



,i 4. — The same from below ; the proboscis partly exserted. 



,, 5, and ba. — Ventral setae of the same, X 200. 



,, 6. — Another form of the setae of the same, X 400. 



„ 7. — Portion of one of the elytra of the same, X 375. 



,, 8. — Head and anterior portion of the ho(\y of Polynoe 

 ochthoebolepis, from above, magnified. 



yf 9. — The same from below. 



„ 10.— Section through the anterior region of the body of the 

 same, shewing the jaws, a, nerve-cord; h, b, 

 ventral longitudinal muscles ; c, neuropodium ; d, 

 notopodium ; e, retracted oesophagus ; f, J\ teeth. 



