38 ' ENDEAVOUR " SCIENTIFIC RESULTS. 



figured examples, which came from Tristan d'Acunha at 1425 

 fathoms. 



Forty miles south of Cape Wiles, 100 fathoms. Two 

 valves. 



Genus BAIRDIA, McCoy. 

 BAIRDIA AMYGDALOIDES, G. S. Brady. 



Bairdia amygdaloides, G. S. Brady, Trans. Zool. Soc. 

 Lond., v., 1865, p. 364, pi. Ivii., figs. 6a-c. Id., Chall. 

 Hep., Zool., i., pt. iii., 1880, p. 54, pi. ix., figs. 

 5a-f ; pi. x., figs. 2a-e. 



B. amygdaloides appears to be almost peculiarly an Australian 

 form, but it also occurs in the South Pacific. It is also a 

 common fossil in Australian Tertiary beds, from at least 

 Miocene times upwards. 



Station 36, east of Tasmania, 777 fathoms. Frequent ; 

 specimens small. 



Forty miles south of Cape Wiles, 100 fathoms. Frequent ; 

 specimens of normal size. 



BAIRDIA ANGULATA, G. 8. Brady. 

 (Plate ii., fig. 3). 



Bairdia angulata, G. S. Brady, Les Fonds de la Mer, i., 

 1867, p. 199, pi. xxvii., figs. 11, 12. Id., Chall. Rep., 

 Zool., i., pt. iii., 1880, p. 59, pi. xi., figs. 5a-d. 



It is of great interest to meet with this widely distributed 

 but rare species in the Southern Ocean. Dr. Brady records 

 it from off the Azores, 450 fathoms ; Torres Strait, 155 

 fathoms ; and off the West Coast of South America, 160 

 fathoms. 



Station 36, east of Tasmania, 777 fathoms. Two left and 

 one right valve. 



BAIRDIA FUSCA, G. S. Brady. 



Bairdia fusca, G. S. Brady, Trans. Zool. Soc. Lond., v., 

 1865, p. 364, pi. Ivii., figs. la-d. Id., Chall. Rep., Zool., 

 i., pt. iii., 1880, p. 49, pi. vii., figs. 2a-d. Egger, 

 Abhandl. d. k. Bayer. Akad. Wiss., xxi., Abth. ii., 

 1901, p. 427, pi. vii., figs. 47-49. 



This species is characteristically Australian, having been 

 originally described by Brady from Australian specimens and 



