230 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 16 



Fig. 1. Caberea ellisi (Fleming), note the absence of a scutum. 



Fig. 2. The same, dorsal view showing the vibracular chambers. 



Fig. 3. A masti ff ia rudis (Busk). 



Fig. 4. The same, dorsal view, vibraculiform avicularia. 



Fig. 5. The same, ovicell and diflFerent sizes of avicularia. 



Fig. 6. Scrupocellaria californica Trask, dotted lines show position 

 of joint. 



Fig. 7. The same, giant lateral avicularium. 



