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Test, oral view
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Singapore, South West, Singapore
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Kasawari, North Sulawesi, Indonesia
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Scientific name: Pseudoboletia maculata
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Singapore, North East, Singapore
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Aboral view showing confluent posterior petals
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Kampong Pasir Ris, North East, Singapore
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Kasawari, North Sulawesi, Indonesia
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Buona Vista, South West, Singapore
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Singapore, North East, Singapore
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Exmouth, Western Australia, Australia
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Simei, North East, Singapore
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X Lc Gi, Nghe An Province, Vietnam
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Kampong Salabin, South East, Singapore
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Type A deformity idue to pollution in T. g. elatensis in Eilat, Red Sea: It showed mainly as exaggrated H/D ratio. Here, a living urchin of ca 35 mm diameter, showed H/D = 1.2 proportion. This deformity was shown by over 1/2 of the population of T. g. elatensis in the shore next to the outfall of hot and saline seawater ejected from a combined power and desalination plant. Another picture shows the dried out test of a similar deformed urchin showing a skeletal abnormality such as "pinched" ambulacra, simultaneusly in all five ambulacra. A detailed descriotion of these deformities is shown in Dafni, 1980 and in Dafni & Erez 1987a,b
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Bedok, South East, Singapore
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Oral View
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Scientific name: Pseudoboletia maculata
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Pulau Tekong, South East, Singapore
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Test, oral view showing shield-shaped subanal fasciole
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Kampong Pasir Ris, North East, Singapore
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Makawidey, North Sulawesi, Indonesia
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Kampong Pasir Ris, North East, Singapore