Overview
Distribution
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UNESCO-IOC Register of Marine Organisms
http://www.marinespecies.org/aphia.php?p=sourcedetails&id=1318
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Jereb, P.; Roper, C.F.E. (Eds)(2005). An annotated an illustrated catalogue of cephalopod species known to date. Volume 1: Chambered nautilusses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Species Catalogue for Fishery Purposes 4(1). FAO, Rome. 262p., 9 colour plates.
http://www.marinespecies.org/mollusca/aphia.php?p=sourcedetails&id=124589
© WoRMS for SMEBD
Source:
World Register of Marine Species
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Physical Description
Type Information
Catalog Number: USNM 730549
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: male;
Preparation: Dry; Isopropyl Alcohol
Collector(s): W. Saunders
Year Collected: 1977
Locality: Augupelu Reef, Mutremdiu Point, Palau, North Pacific Ocean
Depth (m): 183 to 305
- Holotype: Saunders, W. B. 1981. Veliger. 24(1): 1-7.; Saunders, W. B. 1981. The Veliger. 24(1): 1-7.
© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
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Catalog Number: USNM 730546
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: female;
Preparation: Alcohol (Ethanol)
Collector(s): W. Saunders
Year Collected: 1977
Locality: Augupelu Reef, Mutremdiu Point, Palau, North Pacific Ocean
Depth (m): 183 to 305
- Paratype: Saunders, W. B. 1981. Veliger. 24(1): 1-7.; Saunders, W. B. 1981. The Veliger. 24(1): 1-7.
© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
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Catalog Number: USNM 730673
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: male;
Preparation: Dry
Collector(s): W. Saunders
Year Collected: 1977
Locality: Augupelu Reef, Mutremdiu Point, Palau, North Pacific Ocean
Depth (m): 305 to 305
- Paratype: Saunders, W. B. 1981. Veliger. 24(1): 1-7.; Saunders, W. B. 1981. The Veliger. 24(1): 1-7.
© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
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Catalog Number: USNM 730672
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: ; larvae
Preparation: Dry
Collector(s): W. Saunders
Year Collected: 1978
Locality: Ngemelis Island, Great Wall On West Side, Palau, North Pacific Ocean
Depth (m): 305 to 305
- Paratype: Saunders, W. B. 1981. Veliger. 24(1): 1-7.; Saunders, W. B. 1981. The Veliger. 24(1): 1-7.
© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
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Catalog Number: USNM 730676
Collection: Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
Sex/Stage: female;
Preparation: Dry
Collector(s): W. Saunders
Year Collected: 1976
Locality: Augupelu Reef, Mutremdiu Point, Palau, North Pacific Ocean
Depth (m): 183 to 183
- Paratype: Saunders, W. B. 1981. Veliger. 24(1): 1-7.; Saunders, W. B. 1981. The Veliger. 24(1): 1-7.
© Smithsonian Institution, National Museum of Natural History, Department of Invertebrate Zoology
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Ecology
Habitat
Water temperature and chemistry ranges based on 5 samples.
Environmental ranges
Depth range (m): 183 - 305
Temperature range (°C): 9.138 - 12.266
Nitrate (umol/L): 20.290 - 30.508
Salinity (PPS): 34.531 - 34.533
Oxygen (ml/l): 1.675 - 2.513
Phosphate (umol/l): 1.668 - 2.286
Silicate (umol/l): 25.068 - 38.274
Graphical representation
Depth range (m): 183 - 305
Temperature range (°C): 9.138 - 12.266
Nitrate (umol/L): 20.290 - 30.508
Salinity (PPS): 34.531 - 34.533
Oxygen (ml/l): 1.675 - 2.513
Phosphate (umol/l): 1.668 - 2.286
Silicate (umol/l): 25.068 - 38.274
Note: this information has not been validated. Check this *note*. Your feedback is most welcome.
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Wikipedia
Nautilus belauensis
Nautilus belauensis, also known as the Palau nautilus, is a species of nautilus native to the waters around the Pacific island nation of Palau.[1] N. belauensis is very similar to Nautilus pompilius and shares with this species a closed umbilicus covered with a callus. It differs on the basis of a modified radula and fine raised ridges across and along the shell, which form a cross-grid texture. N. belauensis is the second-largest nautilus after the giant form of N. pompilius pompilius. The shell is usually up to around 210 mm in diameter, although specimens up to 226 mm have been recorded.[2]
N. belauensis seen from the front, showing the hyponome
Palau nautilus viewed from above
Diver with Palau nautilus showing size of a typical captured specimen
Close-up view of the eye of the Palau nautilus
View of a Palau nautilus from the side
A cage used to capture Palau nautiluses from a depth of approximately 30 m: note the five nautiluses and the mostly eaten chicken. The animals are released unharmed.
References
- ^ Saunders, W.B. 1981. A new species of Nautilus from Palau. Veliger 24(1): 1–7.
- ^ Jereb, P. 2005. Family Nautilidae. In: P. Jereb & C.F.E. Roper, eds. Cephalopods of the world. An annotated and Illustrated catalogue of species known to date. Volume 1. Chambered nautiluses and sepioids (Nautilidae, Sepiidae, Sepiolidae, Sepiadariidae, Idiosepiidae and Spirulidae). FAO Species Catalogue for Fishery Purposes. No. 4, Vol. 1. Rome, FAO. pp. 51–55.
- Norman, M. 2000. Cephalopods: A World Guide. Hackenheim, ConchBooks, p. 22.
Source:
Wikipedia
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