564 ALLAN HANCOCK PACIFIC EXPEDITIONS VOL. 14 



PLATE 48 



Fig. 1. Smitiina cordata new species, very young zooecium with de- 

 tails of the primary aperture. 



The same, secondary aperture and suboral avicularium. 

 The same, ovicell. 



The same, in high calcification with raised peristome and 

 large umbo. 



Smittina maccullocliae new species, zooecia, ovicell and ele- 

 vated avicularium and peristome. 



The same, showing peristome in the absence of an avicu- 

 larium. 



Smittoidea prolifica new species, zooecium with ovicell and 

 suboral avicularium. 



Fig. 8. The same, diagram showing details of aperture and spines. 



Fig. 9. Smittoidea reticulata (MacGillivray), zooecium with char- 

 acteristic position and shape of avicularium, and diagram of 

 aperture. 



Fig. 10. The same, ovicell. 



Fig. 11. Smittoidea transversa (Busk), zooecia, ovicell, transverse 

 suboral avicularium and aperture. 



Fig. 12. Parasmittina crosslandi (Hastings), zooecium with ovicell, 

 and diagram of aperture and different types of avicularia. 



Fig. 13. Parasmittina alaskensis new species, zooecium with secon- 

 dary aperture, spines and two types of avicularia. 



