BY C. HEDLEY. 705 



PANOP.EA ANGUSTA, Sp.nOV. 



(Plate Ixxx., figs.40, 41, 42.) 



Shell small, thin, oblong, inflated, gaping at each end, but 

 most anteriorly. Colour white. Anterior side a little shorter 

 than the posterior, rounded at each end, excised antero-ventrally. 

 Dorsal margin rather concave. Beak prominent. Cardinal 

 tooth large and projecting. Sculpture consisting of irregular 

 concentric ridges and furrows. Length, 63; breadth, 35; depth 

 of single valve, 13 mm. 



Compared with P. australis Sowerby,"*^ the new species is more 

 cylindrical, smaller and thinner. Brazier has recorded! P. aus- 

 tralis from the Sow and Pigs bank, Port Jackson, but that record 

 was based on P. angusta. Imperfect shells from Wreck Bay, 

 N.S.W., indicate that P. australis reaches north to this State. 

 Under the name of P. australis, Valenciennes has described j a 

 South African species, which Woodward renamed P. natalensis,% 

 and Sowerby again renamed P. attenuata. An extreme variety 

 of P. australis is shown under that name by Sowerby, PI. vi., 

 fig. 11, Panopaea, Conch. Icon., xix., 1873. For this, I now pro- 

 pose the name " sj^atiosa^ Sowerby erred in ascribing P. 

 zelandica Quoy and Gaimard, to Moreton Bay, Queensland. 

 His P cancellata,\\ described as Australian, has not been locally 

 recognised. From external appearance, I should consider that 

 the Table Cape fossil, Lyonsia agneivi Ten.- Woods, IT w^as a 

 Lutraria rather than a Panopcea, as it is classed by Tate and 

 Pritchard. 



Ilab. — One right valve (type) collected at Tewantin, Queens- 

 land, by Mr. Carl Laseron. One left valve dredged near Xorth 

 Head, Sydney, by Mr. John Brazier. 



♦Sowerby, Genera Rec. and Foss. Shells, 1., pt.40, 1834, P1.32, f.2. 

 t Brazier, Proc. Linn. Soc. N. S. Wales, ii., 1877, p.371. 

 J V'alenoienues, Archiv. du Mus., i., 1839, p. 3, Pi. 3, f.l ; Id., Conch. 

 Illustr., Fimopcea, 1843, p. 3, PI. 8, 11, 12. 



§ Woodward, Proc. Zoo). Soc, 1855(1856), p.220 ; Sowerby, Conch. 

 Icon., xix., 1873, Pi. iii. 



II Sowerby, Conch. Icon., xix., 1873, PI. ir., f.4. 

 IT Proc. Roy. Soc. Tasm., 1875, p.25, Pi. iv., fig.l3. 



