Victorian Species of Teredo. 123 



EXPLANATION OF PLATES. 



Plate XII. 



Fig. 1. Oregon Pine, after 18 months' immersion at Lakes. 

 Entrance. Attacked by — 

 Teredo brnguieri, Chiaje. 

 Teredo navalis, Linn. 

 Teredo pedicillatus, Quatrefages. 

 Teredo saulii, Wright. 

 Fig. 2. Eucalyptus from pile, Portsea Pier. The two large bur- 

 rows are those of Tei-edo brnguieri, Chiaje., the 

 larger one attaining a length of 2 ft. 6in. 

 Fig. 3. Eucalyptus from pile, Portsea Pier. Cross-cut to show 

 burrows. The large bore is that of Teredo bruguieri,. 

 Chiaje., its diameter being 18 mm. 

 Fig. 4. Drift timber from Port iUbert. Bored by Teredo. 



Plate XIII. 



Fig. 6. Portion of calcareous lining of a burrow, with larvae- 



thereon . 

 Larva of Teredo (after Quatrefages). 

 Shelly layer at termination of burrow. 

 Calcareous tube or sheath of Teredo bruguieri, Chiaje, 



showing internal concamerated structure at poster ior 



end, and its absence at anterior extremity. 

 Pallet of Teredo navalis, Linn. Length, 6.5 mm. 

 Pallet of Teredo (Xylotrya) saulii, Wright. Length, 



19 mm. 

 Pallet of Teredo bruguieri, Chiaje. Length, 10 mm. 

 Pallet of Teredo pedicillatus, Quat. Length, 5 mm. 

 Pallet of Teredo fragilis, Tate (type). Length, 2 mm. 

 All of the figures are variously magnified. 



