MARINE WOOD-BORING ANIMALS. 



401 



■times the width of the distal part. The siphons (text-fig. 8) are 

 adherent for two-thirds of their length in preserveil specimens. 



Text-fiofure 8. 



Xylotrya australis, sp. n. Sjnitj'pe from Auclvland. 



Siphons and associated structures from the right side. The fleshy collar 



has been divided and reflected, the pallets remaining- attached. 



Text-fi figure 9. 



Xylotrya capensis, sp. n. Syntype from Simon's Town. 

 A. Eight, B. Left valve of shell. 



The largest complete specimen (from Auckland) is about 35 cm. 

 long in the preserved state. The valves measure up to 13"5 mm. 

 in length and about the same in depth. 



