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Chatham Islands
| Island/Location | Te Whanga Lagoon |  |
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| Specific location | Western shore of Muriwhenua | ||||
| Family | Veneridae | ||||
| Genus/Species | Chione stutchburyi | ||||
| Diet/Habitat | Suspension feeder | ||||
| Collection date | Feb 1933 | ||||
| Collector/Collection | AWB Powell | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:14621 | ||||
| Notes | Articulated with ligament (worn). Sediment in interior of shell. 1.56g | ||||
| δ13C | CRA | ± | ΔR | ± | |
| Island/Location | Owenga |  |
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| Specific location | |||||
| Family | Veneridae | ||||
| Genus/Species | Dosina (Phacosoma) maorianai | ||||
| Diet/Habitat | Suspension feeder | ||||
| Collection date | 1936 | ||||
| Collector/Collection | AWB Powell | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:14615 | ||||
| Notes | Articulated with ligament. 13.67g | ||||
| δ13C | CRA | ± | ΔR | ± | |
| Island/Location | Owenga |  |
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| Specific location | |||||
| Family | Veneridae | ||||
| Genus/Species | Irus (Notirus) reflexus | ||||
| Diet/Habitat | Suspension feeder | ||||
| Collection date | 1936 | ||||
| Collector/Collection | AWB Powell | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:14619 | ||||
| Notes | Articulated with ligament (worn). 3.26g | ||||
| δ13C | CRA | ± | ΔR | ± | |
| Island/Location | Owenga |  |
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| Specific location | Depth 18m | ||||
| Family | Pectinidae | ||||
| Genus/Species | Chlamys diffenbachi | ||||
| Diet/Habitat | Suspension feeder | ||||
| Collection date | Feb 1933 | ||||
| Collector/Collection | AWB Powell | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:99259 | ||||
| Notes | Articulated valuve. Sponge on surface. Fine detail present. 2.85g | ||||
| δ13C | CRA | ± | ΔR | ± | |
| Island/Location | Te Whanga lagoon |  |
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| Specific location | |||||
| Family | Mytilidae | ||||
| Genus/Species | Xenostrobus securis | ||||
| Diet/Habitat | Suspension feeder. Fond of brackish waters | ||||
| Collection date | 1925 | ||||
| Collector/Collection | Marwick | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:99032 | ||||
| Notes | Articulated valves. Bryzoan and algae on surface. Animal present. Periostracum present. 0.131g | ||||
| δ13C | CRA | ± | ΔR | ± | |
| Island/Location | Waitangi |  |
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| Specific location | |||||
| Family | Mytilidae | ||||
| Genus/Species | Modiolarca impacta | ||||
| Diet/Habitat | Suspension feeder | ||||
| Collection date | Feb 1933 | ||||
| Collector/Collection | AWB Powell | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:17201 | ||||
| Notes | Articulated with ligament. Periostracum present. 3.71g | ||||
| δ13C | CRA | ± | ΔR | ± | |
| Island/Location | Waitangi |  |
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| Specific location | |||||
| Family | Mytilidae | ||||
| Genus/Species | Modiolus areolatus | ||||
| Diet/Habitat | Suspension feeder | ||||
| Collection date | Feb 1933 | ||||
| Collector/Collection | AWB Powell | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:17209 | ||||
| Notes | Articulated with ligament. Periostracum present. Algae on exterior. 4.76g | ||||
| δ13C | CRA | ± | ΔR | ± | |
| Island/Location | Owenga |  |
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| Specific location | |||||
| Family | Ostreidae | ||||
| Genus/Species | Ostrea lutaria | ||||
| Diet/Habitat | Suspension feeder | ||||
| Collection date | Feb 1933 | ||||
| Collector/Collection | AWB Powell | ||||
| Museum | Auckland Museum | ||||
| Museum aquasition No. | AK:13160 | ||||
| Notes | Fragments from articulated shell. 1.63g | ||||
| δ13C | CRA | ± | ΔR | ± | |