PLATE 38. 



Hyalinoecia leucacra Chamberlin. 



Figures 1-3. • 



1. — End of crochet from sixty sixth somite of paratype. X 278. 

 2. — Hooded crochet of first parapodium. X 278. 

 3. — Mandible of paratjrpe. X 45. 



Hyalinoecia tecton Chamberlin. 

 Figvires 4r-9. 



4. — Mandibles, dorsal view. X 27. 



5.— Maxillae of left side. X 27. 



6. — Crochet from posterior region, distal portion. X 278. 



7. — Pectinate seta from anterior parapodimn. X 1075. 



8. — Blade of limbate seta from ventral fascicle of a posterior parapodium. X 278. 



9. — Blade of limbate seta from dorsal group of same parapodimn. X 278. 



