Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae)
The egg capsules, eggs and embryos of the muricid gastropod Coronium coronatum are described for the first time. Capsules are sessile, bulliform, semi-circular, with a plug in the dorsal center. Sutures split the capsule into two asymmetrical halves. Recently laid capsules showed the presence of 363...
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Acceso en línea: | https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02601230_v73_n1_p61_Pastorino http://hdl.handle.net/20.500.12110/paper_02601230_v73_n1_p61_Pastorino |
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paper:paper_02601230_v73_n1_p61_Pastorino2023-06-08T15:22:10Z Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) Penchaszadeh, Pablo Enrique egg embryo gastropod hatching size Gastropoda Muricidae The egg capsules, eggs and embryos of the muricid gastropod Coronium coronatum are described for the first time. Capsules are sessile, bulliform, semi-circular, with a plug in the dorsal center. Sutures split the capsule into two asymmetrical halves. Recently laid capsules showed the presence of 3639 (n = 2) uncleaved nurse eggs with a diameter of 180-210 μm (mean = 197.4 ± 8.9). The number of early embryos was 9-11. The size of the embryos was 320 × 320 to 820-880 μm. Nine pre-hatching embryos of 3.94 mm (n = 8, SD = 0.32) were found inside the older capsule. SEM illustrations of embryos and radulae are provided. Comparison of shell and radula of embryos with the protoconch and radulae of adults of C. coronatum revealed that the capsule belongs to this species. © The Author 2007. Published by Oxford University Press on behalf of The Malacological Society of London, all rights reserved. Fil:Penchaszadeh, P.E. Universidad de Buenos Aires. Facultad de Ciencias Exactas y Naturales; Argentina. 2007 https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02601230_v73_n1_p61_Pastorino http://hdl.handle.net/20.500.12110/paper_02601230_v73_n1_p61_Pastorino |
institution |
Universidad de Buenos Aires |
institution_str |
I-28 |
repository_str |
R-134 |
collection |
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) |
topic |
egg embryo gastropod hatching size Gastropoda Muricidae |
spellingShingle |
egg embryo gastropod hatching size Gastropoda Muricidae Penchaszadeh, Pablo Enrique Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) |
topic_facet |
egg embryo gastropod hatching size Gastropoda Muricidae |
description |
The egg capsules, eggs and embryos of the muricid gastropod Coronium coronatum are described for the first time. Capsules are sessile, bulliform, semi-circular, with a plug in the dorsal center. Sutures split the capsule into two asymmetrical halves. Recently laid capsules showed the presence of 3639 (n = 2) uncleaved nurse eggs with a diameter of 180-210 μm (mean = 197.4 ± 8.9). The number of early embryos was 9-11. The size of the embryos was 320 × 320 to 820-880 μm. Nine pre-hatching embryos of 3.94 mm (n = 8, SD = 0.32) were found inside the older capsule. SEM illustrations of embryos and radulae are provided. Comparison of shell and radula of embryos with the protoconch and radulae of adults of C. coronatum revealed that the capsule belongs to this species. © The Author 2007. Published by Oxford University Press on behalf of The Malacological Society of London, all rights reserved. |
author |
Penchaszadeh, Pablo Enrique |
author_facet |
Penchaszadeh, Pablo Enrique |
author_sort |
Penchaszadeh, Pablo Enrique |
title |
Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) |
title_short |
Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) |
title_full |
Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) |
title_fullStr |
Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) |
title_full_unstemmed |
Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) |
title_sort |
egg capsules, eggs and embryos of the southwestern atlantic gastropod coronium coronatum (gastropoda: muricidae) |
publishDate |
2007 |
url |
https://bibliotecadigital.exactas.uba.ar/collection/paper/document/paper_02601230_v73_n1_p61_Pastorino http://hdl.handle.net/20.500.12110/paper_02601230_v73_n1_p61_Pastorino |
work_keys_str_mv |
AT penchaszadehpabloenrique eggcapsuleseggsandembryosofthesouthwesternatlanticgastropodcoroniumcoronatumgastropodamuricidae |
_version_ |
1768545048373231616 |