碩士 / 國立中山大學 / 海洋科學系研究所 / 103 / The Naticidae belongs to the order of Sorbeoconcha (Class: Gastropoda) which have more than 300 living species in the world. Among the Sorbeoconcha snails, naticids are the only group produce “sand collar”. During the breeding season, various sand collars are found on sandy shallow waters and intertidals. To date, the morphological characters of naticid egg masses are seldom described in the literatures and it is difficult to identify them directly in the fields. In this study, naticid snails and egg masses were collected from the coasts of Southwestern Taiwan, Kinmen, and Penghu. A total of 13 species was sampled. Based on morphological characters, ten types of egg masses were classified. Through genetic analyses, the distances within naticid species in CO1 and 16S were 0.000 - 0.020 and 0.000 - 0.007. And the distances between species were 0.047 - 0.187 and 0.016 - 0.078, respectively. In addition, it was found that Naticarius zonalis is a new record of Taiwan and Notocochlis lurida is not a synonym of Notocochlis gualtieriana. The egg masses were identified to levels of species for 7 and genus for 1, but still 2 unknown types. Besides, insignificant difference in egg mass morphology of the same species from different substrates was also found.
| Identifer | oai:union.ndltd.org:TW/103NSYS5276004 |
| Date | January 2014 |
| Creators | Dun- Ru Kang, 康惇茹 |
| Contributors | Li-Lian Liu, 劉莉蓮 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 111 |
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