359 



Cardita latissima, Tate, 



1886. Cardita latissima, Tate, Trans. Roy. Soc. South Aust. vol. viii. p. 153, 

 pi. ii. fig. 5. 



Shell roundly-oblong ; surface ornamented witli about thirty 

 costae having lamellar scales. It differs from C. polynema in being 

 •widened posteriorly, and in having fewer radial costae. 



Dimensions. — Height 13 mm.; length 14 mm. 



Form, and Loc. — P]ocene : Aldinga, South Australia. 



L. 9903. Specimens of both valves, of the neanic stage of 

 gro w th . Purchased. 



Cardita delicatula, Tate. 



1886. Cardita delicatula, Tate, Trans. Eoy. Soc. South Aust. vol. viii. 



p. 154, pi. ii. fig. 10. 

 1893. Cardita delicatula, Tate and Dennant, id. vol. xvii. pt. 1, p. 224. 

 1896. Cardita delicatula, Tate and Dennant, id. vol. xix. pt. 1, p. 113. 



Shell ovate, depressed ; umbones oblique, curved inwards ; 

 posterior margin rouadly truncated ; surface " with twenty-six 

 compressed radial ribs, densely beset with granules passing into 

 scales ou the posterior slope ; interspaces a little wider than the 

 ribs ; inner margins of valves coarsely crenulated." — Tate. 



Dimensions. — Height 10 mm. ; length 12 mm. 



Form, and Loc. — Eoceue : Muddy Creek, Victoria. 



L. 9905. Several examples of both valves. Purchased. 



Cardita calva, Tate. 



1887. Cardita calva, Tate, Trans. Roy. Soc. South Aust. vol. ii. p. 189, 



pi. XX. fig. 14. 



Shell small, subtrigonal, depressed ; umbones elevated, acute ; 

 umbonal area smooth, with distant sulci, from which proceed about 

 twenty radial costae, closely granulated ; the intercostal spaces are 

 widest anteriorly and posteriorly. 



Dimensions. — Height 5 mm. ; length 5 mm. 



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



L. 9906. Examples of both valves. Purchased. 



