PLATE 38. 



Hyalinoecia leucacra Chamberlin. 



Figures 1-3. 



1. End of crochet from sixty sixth .somite of paratjTje. X 278. 



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

 -3. — Mandible of paratype. X 45. 



Hyalinoecia tecton Chambeblin. 



Figures 4-9. 



4. — Mandibles, dorsal view. X 27. 



.5.— MaxiUae of left side. X 27. 



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



7 — Pectinate seta from anterior parapodium. X 1075. 



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



9._ Blade of limbate seta from dorsal group of same parapodium. X 278. 



