PLATE XVI 



FIG. I. Tceniosoma funnetti sp. nov. Caught on fishing-line by Chinamen, 

 Monterey Bay, Calif. Somewhat less than natural size. 



2. T. punnetti. Ventral side of head. Natural size. 



3. T. punnetti. Ventral side of head when strongly contracted. Twice 



natural size. 



4. Carinella albocincta sp. nov. Body somewhat contracted. Dredged 



between San Pedro and Santa Catalina Island, Calif., in 50-100 

 fathoms. Nearly twice natural size. 



5. C. albocincta. Ventral side of head. Twice natural size. 



6. Tetrastemma nigrifrons sp. nov. Anterior portion of body of the red- 



dish variety. Monterey, Calif. Enlarged seven times. Compare 

 fig. 7, pi. xiv, fig. i, pi. xvn. 



7. T. nigrifrons. Ventral side of head. Enlarged seven times. 



8. T. nigrifrons. Variety bicolor. Monterey, Calif. Enlarged four 



times. Compare fig. 7, pi. xiv, fig. i, pi. xvn. 



9. T. nigrifrons. Variety bicolor. Ventral side of head. 



10. Lineus -wilsoni sp. nov. Pacific Grove, Calif. Slightly enlarged. In 



the process of reproduction this drawing has made the body of the 

 worm to appear much too uneven and irregular both in outline and 

 color. 



11. L. wilsoni. Side view of head. Twice natural size. 



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