MARINE WOOD-BOmXG ANIMALS. 



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

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



Text -figure 8. 



Xylotrya australis, sp. ii. Syntype from Auckland. 

 Siplions and associated structures from the riglit side. The fleshy collar 

 has been divided and reflected, the pallets remaining attached. 



Text-figure 9. 



Xylotrya capensis, sp. n. S3aitype from Simon's Town. 

 A. Right, 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. 



