TREADWELL 



PLATE 8 



IH 





f J r 



^4 



^..i^s-- 3 



r%"^^' 



10 



AilDRiU CoSaLlimoi 



Figures 1 to 7, Dorvillea australiensis Mcintosh. Fig. 1. anterior end X 6. Fig. 2, first para- 

 podium X 41. Fig. 3, tentli parapodium X 41. Fig. 4, pygidium X 20. Fig. 5, anterior 

 plates of the maxillary series X 41. Fig. 6, median plates of the maxillary series X 41. 

 Fig. 7, mandible X 41. 



Figures 8 and 9, Arabella. duUa Treadwell. Fig. 8, maxilla X 68. Fig. 9, mandible X 68. 



Figure 10, maxilla of Drilonereis lumhrieus Treadwell X 20. 



Figure 11, maxilla of Drilonereis paucidentala, Treadwell X 55. 



