Trochus niloticus was reported from 47 countries/islands


Table 1: the species is currently present in 46 of them (endemic, native, introduced);
Table 2: possible in 1 of them (stray, questionable);
Table 3: absent from 0 of them (extirpated, not established, misidentification, error).
Table 4: all reports listed together.

Distribution: Indo-Pacific: from Madagascar, Sri Lanka, Andaman and Nicobar Islands, to as far east as French Polynesia, north to southern Japan and Hawaii, and south to Australia.
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Table 1: Present in 46 countries/islands (endemic, native, introduced)
Continent Country Occurrence Main Ref.
Oceania American Samoa ASM introduced 74657
Asia Andaman Is. ANI native 100789
Oceania Australia AUS native 349
Asia Bangladesh BGD native 95877
Asia Brunei Darsm BRN native 349
Asia Cambodia KHM native 349
Oceania Caroline I. CRL introduced 349
Asia Christmas I. CXR native 105915
Asia Cocos Is. (Keel) CCK native 105915
Oceania Cook Is. COK introduced 349
Oceania Fiji FJI introduced 349
Oceania French Polynesia PYF introduced 349
Oceania Guam GUM introduced 349
Oceania Hawaii HWI introduced 74657
Asia India IND native 114576
Asia Indonesia IDN native 349
Asia Japan JPN native 349
Oceania Kiribati KIR introduced 74657
Africa Madagascar MDG native 349
Asia Malaysia MYS native 349
Oceania Marshall Is. MHL introduced 349
Oceania Micronesia FSM introduced 349
Asia Myanmar MMR native 349
Oceania Nauru NRU native 106736
Oceania New Caledonia NCL native 349
Oceania Niue NIU introduced 74657
Oceania North Marianas MNP introduced 349
Oceania Palau PLW native 100789
Oceania Papua New Guinea PNG native 349
Asia Philippines PHL native 349
Oceania Samoa WSM introduced 349
Africa Seychelles SYC native 106766
Asia Singapore SGP native 349
Oceania Solomon Is. SLB native 349
Asia Sri Lanka LKA native 97545
Asia Taiwan TWN native 349
Asia Thailand THA native 349
Asia Timor-Leste TLS native 349
Oceania Tokelau TKL introduced 86524
Oceania Tonga TON introduced 74657
Oceania Tuamotu Is. TUA native 87883
Oceania Tuvalu TUV introduced 74657
Oceania US Misc Pac PUS introduced 74657
Oceania Vanuatu VUT native 349
Asia Viet Nam VNM native 349
Oceania Wallis Futuna WLF native 100789

Table 2: Possible in 1 country/island (stray, questionable)
Continent Country Occurrence Main Ref.
Antarctica Br Antarctic Tr BAT questionable 106766

Table 4: Reported from 47 countries/islands.
Continent Country Occurrence Main Ref.
Oceania American Samoa ASM introduced 74657
Asia Andaman Is. ANI native 100789
Oceania Australia AUS native 349
Asia Bangladesh BGD native 95877
Antarctica Br Antarctic Tr BAT questionable 106766
Asia Brunei Darsm BRN native 349
Asia Cambodia KHM native 349
Oceania Caroline I. CRL introduced 349
Asia Christmas I. CXR native 105915
Asia Cocos Is. (Keel) CCK native 105915
Oceania Cook Is. COK introduced 349
Oceania Fiji FJI introduced 349
Oceania French Polynesia PYF introduced 349
Oceania Guam GUM introduced 349
Oceania Hawaii HWI introduced 74657
Asia India IND native 114576
Asia Indonesia IDN native 349
Asia Japan JPN native 349
Oceania Kiribati KIR introduced 74657
Africa Madagascar MDG native 349
Asia Malaysia MYS native 349
Oceania Marshall Is. MHL introduced 349
Oceania Micronesia FSM introduced 349
Asia Myanmar MMR native 349
Oceania Nauru NRU native 106736
Oceania New Caledonia NCL native 349
Oceania Niue NIU introduced 74657
Oceania North Marianas MNP introduced 349
Oceania Palau PLW native 100789
Oceania Papua New Guinea PNG native 349
Asia Philippines PHL native 349
Oceania Samoa WSM introduced 349
Africa Seychelles SYC native 106766
Asia Singapore SGP native 349
Oceania Solomon Is. SLB native 349
Asia Sri Lanka LKA native 97545
Asia Taiwan TWN native 349
Asia Thailand THA native 349
Asia Timor-Leste TLS native 349
Oceania Tokelau TKL introduced 86524
Oceania Tonga TON introduced 74657
Oceania Tuamotu Is. TUA native 87883
Oceania Tuvalu TUV introduced 74657
Oceania US Misc Pac PUS introduced 74657
Oceania Vanuatu VUT native 349
Asia Viet Nam VNM native 349
Oceania Wallis Futuna WLF native 100789
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The map in this page was supported by BioFresh that has received funding from the
European Union's Seventh Programme for research, technological development and demonstration under grant agreement No 226874

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