A Morphological Assessment of a Land Snail Pincerna globosa (Gastropoda, Alycaeidae) from Sarawak
This study focused on a land snailPincerna globosa that occupies limestone hills in the western part of Sarawak. This study was conducted due to only a few Pincerna species were studied, a nd diagnoses were frequently made without sufficient comparability across congeners from Borneo. In this stud...
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Format: | Final Year Project Report |
Language: | English |
Published: |
Universiti Malaysia Sarawak, (UNIMAS)
2022
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Online Access: | http://ir.unimas.my/id/eprint/39723/1/NUR%20IZZATI%20%28fulltext%29.pdf http://ir.unimas.my/id/eprint/39723/ |
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Summary: | This study focused on a land snailPincerna globosa that occupies limestone hills in the western part of
Sarawak. This study was conducted due to only a few Pincerna species were studied, a nd diagnoses were
frequently made without sufficient comparability across congeners from Borneo. In this study, the main a im
is to compare the morphological characters of the species Pincerna globosaof different populations in the
western part of Sarawak. The sampling was conducted in Gua Raya, Serian and Wind Cave Nature Reserve,
Bau. Active search for snails were conducted at both sampling areas. Based on our findings, we f ound that
there is variation of morphological assessment of thetwo different populations of the species.The correlation
coefficient between shell height (SH) and shell width (SW) is weakly correlated with 05746. The connection
between apertural height (AH) and apertural width (AW) is moderately correlated with 0.7562. Strong
association exists between the shell diameter (D) and shell height (H) correlation coefficients with 0.8354.
The average width of the silhouette is 0.33, indicating that the cluster structure is well-configured overall. I n
conclusion, there are significant differences between the morphological patterns of two different populations
of species Pincena globosa.We suggest forfuturestudy it is recommended to use larger sample sizes f or
each species to acquire better a understanding on shell variation of Pincerna. |
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