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Radula Morphology of Selected Gastropods from Terengganu<br />

Tun Abrar Hakim bin Abdul Rahman<br />

Bachelor of Sciences (Marine Biology)<br />

School of Marine Sciences and Environment<br />

Radula is an important feature that enables gastropods to get nutrition. It is used to<br />

collect food from the surface of their food source. Gastropod samples were collected<br />

from Pulau Redang, Terengganu in May, August and October 2016 in five different<br />

sampling sites. Pulau Lima, Pulau Kerengga Besar, Terumbu Kili, Pasir Mak Simpan<br />

and Chagar Hutang were the stations involved. From the samples collected, there are<br />

three species identified, which are Astraea rhodostoma (Lamarck, 1822), Drupella<br />

rugosa (Röding, 1798) and Drupella cornus (Born, 1778) and from these three species,<br />

two types of radula were identified, which are taenioglossate and rachiglossate. Both<br />

Drupella sp. are known corallivores, and A. rhodostoma is an herbivore.<br />

Taenioglossate radula has a general formula of 2+1+R+1+2 and Rachiglossate radula<br />

has a general formula of 1+R+1. The observation of the morphology of radula will<br />

give us a better understanding on the feeding habits of these gastropods.<br />

1846 | UMT UNDERGRADUATE RESEARCH DAY 2018

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