462 TEE CRUISE OF THE ' CURAQOA: 



PLATE XLII. Figs. 1, 2, 3. 



VENUS BOSEO-TINCTA, Baird. 



Shell sub-cordately orbicular, dull white, concentrically lami- 

 nated; laminae broad, distant, 16 in number, the upper very 

 small, and tipped at the umboues with rosy red, the lower very 

 large and wide, reflected upwards, more or less striated, the 

 interstices striated; ligamental area moderately excavated; lunule 

 cordate ; interior of valves of a pink colour, except the margin, 

 which is white. 



Height 13^ lines. 

 Breadth nearly the same. 

 Hah. New Caledonia. 



PLATE XLn. Fig. 4. 

 AECA NOV^ CALEB0NI2E, Baird. 



Shell very swollen, obliquely ovate, equivalve ; anterior side 

 very slightly angled, extremely short, posterior obliquely extended 

 to an acuminated point ; of a dull white colour, apparently 

 covered with a close epidermis ; radiately ribbed ; ribs about 36 

 in number, rather flat and close set, densely wrinkled-noduled, 

 not divided by a sulcus or groove, interstices closely crossed with 

 raised lines ; umbones small ; ligamental area moderately large, 

 bent inwards. 



Length, from anterior to posterior side, nearly 2^ inches. 

 Breadth about 2 inches. 

 Hah. New Caledonia. 



