BY C. HfiDLEY. 95 



The valve (tigs. 7-8) is distinguished by a broad and deep 

 auricle, truncated anteriorly and curved in to meet the antero- 

 median margin at an acute angle. The example before me 

 measures 7 mm. in height, and in length the same. So far as 

 my experience goes C saulii never approaches the size of (TJ edax. 



The anterior portion of the animal possesses the cup-like pro- 

 cess of the mantle like that figured and described for C.JluviatUis, 

 and I accordingly transfer it to Calobates. Wright has figured 

 the same feature in Kuphus Q) mannii* and I therefore follow 

 Try on t in placing it also in Calobates. This character is again 

 apparent in Wright's figures of Nausitoria dunlopei,X Calobates 

 anstralis,^ and C. tho7-acites.\\ 



I am much indebted to Prof. Ralph Tate for an opportunity of 

 examining authentic specimens of his Teredo frayilis.^] This has 

 left me no doubt that T. fragilis is a synonym of (7. saulii, to 

 which the unfigured valves quite correspond. The apparent 

 difference in the palettes is due to the fracture of the specimens 

 figured, wherein all joints but the basal one have been snapped off. 



Miss Lodder has sent me specimens of C. saulii from the 

 entrance of the Tamar River, and Sandfoi'd, Tasmania, and Mr. 

 G. B. Pritchard from Beaumaris, Victoi'ia. I have also seen it 

 from the Bellinger River, N.S.W. 



Besides C. saulii, Mr G. Halligan's series of Sydney shipworms 

 also embraced examples of Teredo edax, Hedley, a species which I 

 now wish to include in Calobates, since these entire animals possess 

 the character above emphasised, which appears to me to distinguish 

 the genus. 



I have also had brought under my notice valves of Teredo 

 a>it%rctica, Hutton, from Port Stephens, K.S.W., a habitat which 

 requires confirmatory evidence. Probably this species should 

 follow others into Calobates. In a list of Victorian Mollusca 



* Op. clt. XXV. PI. Ixv. f. 5. 



t Am. Journ. Conch, iii. 1867, Suppl. p. 19. 



X Op. cit. xxiv. PL xlvi. f. 2. 



§ Oj). cit. XXV. PI. Ixiv. f. 1, 



II Op. cit. XXV. PI. Ixiv. f. 7. 



H Trans. Eoy. Soc. S.A. 1888, p. 60, PI. xi. ff. 13a, 13b, 13c, 



K. 



