387 



Tellina masoni, Tate. 



1887. Tellina masoni, Tate, Trans. Roy. Soc. South Aust. vol. is. p. 165, 



pi. xvi. figs. 6a-b. 

 1893. Tt'lliiia masoni, Tate and Dennant, id. vol. xvii. pt. 1, p. 22.3. 



In this species the umbones are situated about one-third the 

 length of the shell from the posterior margin; the ventral 

 margin is arched ; exterior ornamented by closely-set, slightly 

 elevated, concentric lamellre ; pallial sinus very large, reaching to 

 near the anterior adductor scar. 



Dimensions. — Height 14 mm. ; length 21 mm. 



Form, and Loe. — Eocene : Muddy Creek, Victoria. 



L. 9865. Examples of both valves. Purchased. 



Tellina sequilatera, Tate. 



1887. Tellina <eqnilafera, Tate, Trans. Roy. Soc. South Aust. vol. ix. 



p. 166, pi. xvi. figs, ba-b, 9a-b, pi. xx. fig. 19. 

 1893. Tellina aqmlatera, Tate and Dennant, id. vol. xvii. pt. 1, p. 22.5. ' 



Shell oval-oblong, nearly equilateral, smooth, and somewhat 

 convex ; there is a slight radial depression near the post-dorsal 

 margin, proceeding from the umbo ; exterior ornamented -srith 

 concentric striae ; siphonal inflection very deep, narrow, rounded 

 at the extremity, reaching to near the anterior adductor scar, and 

 (contrary to what obtains in T. alhinelloides and T. masoni) is quite 

 detached from the pallial impression. 



Dimensions. — Height 24 mm. ; length 35-5 mm. 



Form, and Loc. — Miocene : Muddy Creek, Yictoria. 



L. 9863. Examples of both valves. Purchased. 



Tellina stirlingi, Tate. 



1887. Tellina stirlingi, Tate, Trans. Roy. Soc. South Aust. vol. ix. p. 166, 



pi. xvi. figs. la-b. 

 1893. Tellina stirlingi, Tate and Dennant, id. vol. xvii. pt. 1, p. 225. 



Shell differs principally from T. cequilatera in being elongate-oval, 



