PLATE 38. 



Fig. 1. Reconstruction of anterior end of Driomenia pacifica. 



Fig. 2. Same, posterior end. 



Fig. 3. Entire animal enveloped in small portion of hydroid colony, Pertularella sp. X 5. 



Figs. 4, 5, 6, 8. Sections along lines A, C, B, D, in fig. 1. X 50. 



Figs. 7, 9. Along lines E, F, of fig. 2. X 50. 



Fig. 10. Section of hypoderniis and cuticle. X 260. 



Fig. 11. Same of Pachymenia abyssorum. X 60. 



