96 NOTES ON AUSTRALASIAN SHIPWORMS, 



recently published by Mrs. Kenyon, the error of ascribing the 

 local shipworm to a European species is again repeated. 



At Oubatche, New Caledonia, I was shown by Madame Du 

 Bois, the local postmistress, several tubes of Kuphus arenarius, 

 which she informed me had been obtained from the reefs in that 

 neighbourhood. This is an interesting extension of the previously 

 recorded range. 



Summary. — The soft joarts rather than the hard should be 

 taken as a guide in a classification of the ship worms. A salient 

 character is the cup-like process of the mantle which embraces 

 both siphons and palettes; the siphons differ in the extent to 

 which they are divided. 



The genus Calobates, Gould, is hereby remodelled and character- 

 ised by a cup-like anterior fold of the mantle and short siphons 

 divergent for half their length. It thus embraces Wright's Nan.si- 

 toria, possibly Gould's Lyrudus, and species referred to other genera. 



A new species, Ca/.obaJesJiuviatilis, from Fiji is distinguished 

 by the rounded and produced auricle of the valve, and by the 

 hatchet-shaped palettes. 



The shipworms at present recorded from temperate Australia 

 are : — -Calobates atistralis, Wright, from Fremantle, W.A. ; C. 

 saulii, Wright (to which Teredo fragilis, Tate, is reduced), from 

 Adelaide, Melbourne, Launceston, Sydney and the Bellinger 

 River, N.S.W.; C. edax, Hedley, from Adelaide and Sydney, and 

 doubtfully Teredo (? Calobates) antarctica, Hutton, from Port 

 Stephens, N.S.W. 



EXPLANATION OF FIGURES. 



Calobates fluviafitis, Hedley. 



Fig. 1. — Exterior aspect of right valve. 

 Fig. 2. — Interior aspect of the same. 

 Fig. 3. — Hinge process, viewed anteriorly. 

 Fig. 4. — Palette, seen from the side. 

 Fig. 5. — The same, edgewise. 



Fig. 6. — Anterior extremity of trunk, with one palette removed, and 

 the mantle slit, to show the relative positions of siphon and palette. 



Calobates saulii, Wright. 



Fig. 7. — Interior aspect of right valve. 

 Fig. 8. — Exterior aspect of the same. 

 Fig. 9.— Palette. 



All magnified, and to various scales. 



