84 
Fam. Corbulidae. 
Corbula zelandica Quoy & Gaimard. 
North Island; 10, many sps., 1. 13. — 11b, 3 sps., 1. 14. — 
16, 5 sps., 1. 11.5. — 17, 1 sp., 1. 12. — 22, 1 old valve. — 
23, 2 sps., I. 13. — South Island: 29, many sps., 1. 14. — Auck 
land Island: 41 (Masked Island), 5 sps., 1. 12. 
North Island: 
Fam. Saxicavidae. 
Saxicava artica (Linné). 
4, 2 sps., 1. 10.5. — 9, some sps., 1. 19. — 10, 
2 sps., 1. 7. — 14, 1 sp., 1. 6. — 16, many sps., 1. 9. — 17, 4 
sps., 1. 12. — 18, 1 valve, 1. 8.5. — 28, many sps., 1. 12. — 
off Bare Island, 35 fms, clayish mud, 17/12 1911, 1 sp., 1. 10.5. 
— South Island: 29, 6 sps., 1. 21. — Stewart Island: 35, 1 sp., 
1. 11. — Auckland Island: 41 (Masked Island), 1 sp., 1. 13. — 
43, 4 sps., 1. 9. 
— Campbell Island; 45, many sps., 1. 5.5. 
Fam. Pholadidae. 
Pholadidea spathulata (Sowerby). 
North Island: 
1 Id, 1 sp., 1. 50. 
North Island: 
Pholadidea tridens (Cray). 
17, 1 sp., 1. 22. 
Barnea similis (Cray). 
North Island: 28, numerous sps., 1. 80. 
North Island: 
Fam. Thraciidae. 
Thracia transenna S u t e r. 
19, 1 sp., 1. 16. 
North Island: 
Thracia vitrea (Hutton). 
25, 1 valve, 1. 22. — Auckland Island: 43, 2 
sps., 1. 6.5. — 42, 1 sp., 1. 8.5. 
