216 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 9 



Fig. 1. Tegella armifera (Hincks), lateral avicularia directed back- 

 ward. 



Fig. 2. Tegella unicornis (Fleming). 



Fig. 3. Tegella magnipora new species. Note absence of avicularia 

 and the presence of a large fenestra or pore at distal end of 

 ovicell. 



Fig. 4. The same, showing secondary calcification of ovicell. 



Fig. 5. Tegella robertsonae O'Donoghue. 



Fig. 6. Tegella arctica (d'Orbigny), with lateral avicularia directed 

 forward and smaller ovicell. 



Fig. 7. Tegella armifera var. cassidata (O'Donoghue), with more 

 elevated avicularia. 



