18G7.] MR. G. F. ANGAS ON AUSTRALIAN MOLLUSCA, 519 



Rounder and more inflated than the preceding, with the umbones 

 central ; finely concentrically ridged ; white or livid purple. Dredged 

 at Watson's Bay in 3 fathoms. Length 5 hnes. 



46. *Tellina (M^ra) semitorta. 



Tellina semitorta, Sow. in Conch. Icon. Tellina, pi. 39. f. 221 a,b. 

 _ A small, elongately ovate, bean-shaped species, very short poste- 

 riorly and finely concentrically grooved throughout, pale yellowish 

 or pmkish white. Dredged in Port Jackson. Length G lines. 



47. Tellina (Angulus) ticaonica. 



Tellina ticaonica, Desh. P. Z, S. 1854, p. 358. 



A nearly smooth, pale rose-coloured, shining species. Dredged 

 at Laue Cove. Length 5 lines. Found also in the Philippines." 



48. *Tellina tenuilirata. 



Tellina tenuilirata. Sow. in Conch. Icon. Tellina, pi. 39. f. 219«, J. 



A small elegantly shaped shell, somewhat beaked and truncate 

 behind, and finely lirate throughout, white and shinino-, some- 

 times carnelion-red. Dredged at the "Sow and Pigs" bank. Leno-th 

 6 lines. ° 



49. *Tellina (Angulus) unifasciata. 



Tellina unifasciata. Sow. in Conch. Icon. Tellina, pi. 29. f. 156. 



A thin flattened species, smooth and shining anteriorly, and deli- 

 cately one-rayed, with pink at the posterior slope. In aspect very 

 like T. exilis. Lam., from Japan, which is pink, with two white rays 

 posteriorly. Dredged in Port Jackson. Length 5| hnes. 



50. Tellina (Angulus) lilium. 



Tellina lilium, Hanley, P. Z. S. 1844; Thes. Conch. Tellina, 

 pi. 58. f. 85. 



A pure-white species, nearly smooth, with the posterior area 

 grooved. Dredged at Lane Cove. Length 8 lines. 



51. *Tellina semiplana. 



Tellina semiplana. Sow. in Conch. Icon. Tellina, pi. 39. f. 222a, 5. 

 A smooth, flattened, white species, with but little character. 

 Dredged in Port Jackson. Length 1 inch. 



52. *TeLLINA SEMIFOSSILlS. 



Tellina semifossilis. Sow. in Conch. Icon. Tellina, pi. 41. f. 237. 



A rough-looking, somewhat ovately formed species, more or less 

 eroded at the umbones, yellowish white, here and there rudely con- 

 centrically ridged. Johnson's Bay, Port Jackson, on mud at low 

 water. Length 9 lines. 



