The reproductive system of Derocheilocaris typica (Crustacea, Mystacocarida)
(2012) In Arthropod Structure & Development 41(3). p.281-291- Abstract
- Mystacocarids are dioecious. Their gonopores are on the medial side of the third thoracic limb. The male's paired testes lie in the thorax and abdomen. They develop from paired rows of six small follicles dorsally. In the mature animal they fill most of the abdomen. The spermatophores develop within the follicles from spermatogonia mixed with follicle cells, which support and nourish the spermatocytes and produce the seminal fluid. The short vas deferens runs along the bottom of the testes and then continues forward to the gonopore. The vas deferens has a small group of cells near the gonopore that becomes a closure mechanism. The female has reproductive cells and also support cells that provide nutrition and form the wall of the ovary and... (More)
- Mystacocarids are dioecious. Their gonopores are on the medial side of the third thoracic limb. The male's paired testes lie in the thorax and abdomen. They develop from paired rows of six small follicles dorsally. In the mature animal they fill most of the abdomen. The spermatophores develop within the follicles from spermatogonia mixed with follicle cells, which support and nourish the spermatocytes and produce the seminal fluid. The short vas deferens runs along the bottom of the testes and then continues forward to the gonopore. The vas deferens has a small group of cells near the gonopore that becomes a closure mechanism. The female has reproductive cells and also support cells that provide nutrition and form the wall of the ovary and oviduct. The unpaired female ovary begins in the third thoracic segment. During maturation, the oocytes are pushed posteriorly. The enormous mature ovum extends into a caudal pocket of the ovary. Starting with its anterior end, this ovum is extruded into the short oviduct, which extends laterally and ventrally to the gonopore. During extrusion, the pocket is reabsorbed from behind. There are no accessory structures connected to the reproductive system, nor any external specializations on the third limb. (C) 2012 Elsevier Ltd. All rights reserved. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2809473
- author
- Hessler, Robert R. and Elofsson, Rolf LU
- organization
- publishing date
- 2012
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Crustacea, Mystacocarida, Derocheilocaris, Reproductive system
- in
- Arthropod Structure & Development
- volume
- 41
- issue
- 3
- pages
- 281 - 291
- publisher
- Elsevier
- external identifiers
-
- wos:000304510700008
- scopus:84860597976
- pmid:22406764
- ISSN
- 1467-8039
- DOI
- 10.1016/j.asd.2012.02.003
- language
- English
- LU publication?
- yes
- id
- 1cb758fb-2d9d-4006-896d-1ad46420e129 (old id 2809473)
- date added to LUP
- 2016-04-01 13:00:40
- date last changed
- 2022-01-27 08:51:31
@article{1cb758fb-2d9d-4006-896d-1ad46420e129,
abstract = {{Mystacocarids are dioecious. Their gonopores are on the medial side of the third thoracic limb. The male's paired testes lie in the thorax and abdomen. They develop from paired rows of six small follicles dorsally. In the mature animal they fill most of the abdomen. The spermatophores develop within the follicles from spermatogonia mixed with follicle cells, which support and nourish the spermatocytes and produce the seminal fluid. The short vas deferens runs along the bottom of the testes and then continues forward to the gonopore. The vas deferens has a small group of cells near the gonopore that becomes a closure mechanism. The female has reproductive cells and also support cells that provide nutrition and form the wall of the ovary and oviduct. The unpaired female ovary begins in the third thoracic segment. During maturation, the oocytes are pushed posteriorly. The enormous mature ovum extends into a caudal pocket of the ovary. Starting with its anterior end, this ovum is extruded into the short oviduct, which extends laterally and ventrally to the gonopore. During extrusion, the pocket is reabsorbed from behind. There are no accessory structures connected to the reproductive system, nor any external specializations on the third limb. (C) 2012 Elsevier Ltd. All rights reserved.}},
author = {{Hessler, Robert R. and Elofsson, Rolf}},
issn = {{1467-8039}},
keywords = {{Crustacea; Mystacocarida; Derocheilocaris; Reproductive system}},
language = {{eng}},
number = {{3}},
pages = {{281--291}},
publisher = {{Elsevier}},
series = {{Arthropod Structure & Development}},
title = {{The reproductive system of Derocheilocaris typica (Crustacea, Mystacocarida)}},
url = {{http://dx.doi.org/10.1016/j.asd.2012.02.003}},
doi = {{10.1016/j.asd.2012.02.003}},
volume = {{41}},
year = {{2012}},
}