Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae)

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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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Detalles Bibliográficos
Autores principales: Pastorino, G., Penchaszadeh, P.E., Scarabino, F.
Formato: JOUR
Materias:
egg
embryo
gastropod
hatching
size
Gastropoda
Muricidae
Acceso en línea:http://hdl.handle.net/20.500.12110/paper_02601230_v73_n1_p61_Pastorino
Aporte de:
Biblioteca Digital - Facultad de Ciencias Exactas y Naturales (UBA) de Universidad de Buenos Aires
id todo:paper_02601230_v73_n1_p61_Pastorino
record_format dspace
spelling todo:paper_02601230_v73_n1_p61_Pastorino2023-10-03T15:11:46Z Egg capsules, eggs and embryos of the southwestern Atlantic gastropod Coronium coronatum (Gastropoda: Muricidae) Pastorino, G. Penchaszadeh, P.E. Scarabino, F. 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. JOUR info:eu-repo/semantics/openAccess http://creativecommons.org/licenses/by/2.5/ar 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
Pastorino, G.
Penchaszadeh, P.E.
Scarabino, F.
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.
format JOUR
author Pastorino, G.
Penchaszadeh, P.E.
Scarabino, F.
author_facet Pastorino, G.
Penchaszadeh, P.E.
Scarabino, F.
author_sort Pastorino, G.
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)
url http://hdl.handle.net/20.500.12110/paper_02601230_v73_n1_p61_Pastorino
work_keys_str_mv AT pastorinog eggcapsuleseggsandembryosofthesouthwesternatlanticgastropodcoroniumcoronatumgastropodamuricidae
AT penchaszadehpe eggcapsuleseggsandembryosofthesouthwesternatlanticgastropodcoroniumcoronatumgastropodamuricidae
AT scarabinof eggcapsuleseggsandembryosofthesouthwesternatlanticgastropodcoroniumcoronatumgastropodamuricidae
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