The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917.
Placobdelloides siamensis is a glossiphoniid leech with a short life cycle. In a laboratory setting, ten mature P. siamensis left their host (a turtle) after feeding for approximately three days and initiated copulation. The adults spent 3-4 days gestating before depositing eggs (272.8±62.9 eggs/clu...
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doaj-df1c8e2be2d64e8f9f6231419a0f51152021-03-25T05:32:40ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-011512e024476010.1371/journal.pone.0244760The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917.Krittiya ChiangkulPoramad TrivalairatWatchariya PurivirojkulPlacobdelloides siamensis is a glossiphoniid leech with a short life cycle. In a laboratory setting, ten mature P. siamensis left their host (a turtle) after feeding for approximately three days and initiated copulation. The adults spent 3-4 days gestating before depositing eggs (272.8±62.9 eggs/clutch; range: 186-359 eggs/clutch). The eggs then changed from a creamy white to a creamy brownish color before hatching. Hatching occurred after incubation on the parent's ventral surface for 5-7 days. The transparent brood, with a single pair of red eyes, spent a couple of weeks under the venters of their parents. After this period, they left their parents and grew to maturity in 10-15 days; leeches were considered mature when their color was similar to that of their parents and they performed their first copulation. In addition, the mature leeches survived for 163 days on one feeding.https://doi.org/10.1371/journal.pone.0244760 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Krittiya Chiangkul Poramad Trivalairat Watchariya Purivirojkul |
spellingShingle |
Krittiya Chiangkul Poramad Trivalairat Watchariya Purivirojkul The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917. PLoS ONE |
author_facet |
Krittiya Chiangkul Poramad Trivalairat Watchariya Purivirojkul |
author_sort |
Krittiya Chiangkul |
title |
The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917. |
title_short |
The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917. |
title_full |
The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917. |
title_fullStr |
The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917. |
title_full_unstemmed |
The life cycle of the Siamese shield leech, Placobdelloides siamensis Oka, 1917. |
title_sort |
life cycle of the siamese shield leech, placobdelloides siamensis oka, 1917. |
publisher |
Public Library of Science (PLoS) |
series |
PLoS ONE |
issn |
1932-6203 |
publishDate |
2020-01-01 |
description |
Placobdelloides siamensis is a glossiphoniid leech with a short life cycle. In a laboratory setting, ten mature P. siamensis left their host (a turtle) after feeding for approximately three days and initiated copulation. The adults spent 3-4 days gestating before depositing eggs (272.8±62.9 eggs/clutch; range: 186-359 eggs/clutch). The eggs then changed from a creamy white to a creamy brownish color before hatching. Hatching occurred after incubation on the parent's ventral surface for 5-7 days. The transparent brood, with a single pair of red eyes, spent a couple of weeks under the venters of their parents. After this period, they left their parents and grew to maturity in 10-15 days; leeches were considered mature when their color was similar to that of their parents and they performed their first copulation. In addition, the mature leeches survived for 163 days on one feeding. |
url |
https://doi.org/10.1371/journal.pone.0244760 |
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