PLATE 75. 



Tetreres nesiotes Chamberlin. 



Figures 1-7. 



1.— Uncinus. X 870. 



2. — Seta from thirty fifth abdominal somite, with portion more highly enlarged. 



3. — Inner opercular paleae from near anterior end of series. X 51. 



4. — Three outer paleae from near caudal end of series. X 51. 



5. — Notopodial paleae from last thoracic somite. X 75. 



6. — Neuropodial paleae from second thoracic somite. X 75. 



7. — Nuchal hook, with adjacent papQla, in outline. X 51. 



Idanthyrsus cretus Chamberlin. 



Figures 8- 15. 



8. — Notopodial seta, first abdominal somite. X 30G. 



9. —  Simple seta from notopodium of second pale-bearing somite. X 78. 

 10. — Uncinus from middle region of body. X 870. 

 11. — Five of the inner opercular paleae. X 78. 

 12. — One of the shorter outer paleae. X 78. 



13. — • Tliree dorsal thoracic paleae in different aspects from the second pale-bearing somite. X 78. 

 14. — Dorsal thoracic palea from second pale-bearing somite, surface view. X 78. 

 15. — Ventral thoracic palea, first pale-bearing somite. X 78. 



