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| Guidi, L.; Todaro, M.A.; Ferraguti, M.; Balsamo, M.. |
| The reproductive system and the spermatozoon of Megadasys sterreri from Lanzarote (Canary Islands, Spain) were studied at structural and ultrastructural levels. The species is a simultaneous hermaphrodite with cross-fertilization and shows paired gonads, the male anterior and the female posterior, and both gametes mature in a caudo-cephalic direction. Sperm ducts converge on the midline and open into a ventral common pore. Two sexual accessory organs are present in the caudal trunk. A pipe-like frontal organ lies between the ovaries and the caudal organ, and is composed of a long, thin region connected to a large zone containing mature and degenerating spermatozoa. The cigar-like caudal organ is elongate, bulky and is made of an anterior glandulo-muscular... |
| Tipo: Article / Letter to the editor |
Palavras-chave: Cephalodasyidae; Phylogeny; Planodasyidae; Reproductive traits; Spermatogenesis; 42.79; 42.62. |
| Ano: 2014 |
URL: http://www.repository.naturalis.nl/record/471589 |
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