Male reproductive apparatus and spermatophore morphology of the hermit crabs Pagurus brevidactylus and P. criniticornis (Anomura, Paguridae)
Article first published online: 27 JUN 2011
Copyright © 2011 Wiley-Liss, Inc.
Journal of Morphology
Volume 272, Issue 10, pages 1271–1280, October 2011
How to Cite
Fantucci, M. Z. and Mantelatto, F. L. (2011), Male reproductive apparatus and spermatophore morphology of the hermit crabs Pagurus brevidactylus and P. criniticornis (Anomura, Paguridae). J. Morphol., 272: 1271–1280. doi: 10.1002/jmor.10987
- Issue published online: 12 SEP 2011
- Article first published online: 27 JUN 2011
- Manuscript Accepted: 16 APR 2011
- Manuscript Revised: 12 APR 2011
- Manuscript Received: 18 OCT 2010
- CNPq. Grant Number: Proc. 301359/2007-5
- FAPESP. Grant Number: Proc. 2010/50188-8
- vas deferens
Spermatozoa of most crustacean species are nonmotile and are packed into spermatophores. In Decapoda, spermatophores are highly variable in morphology and can be useful in the solving of taxonomic and systematic questions, especially among the Anomura. In this study, the morphology and morphometry of the spermatophores of the western Atlantic hermit crabs Pagurus brevidactylus and P. criniticornis are described. The abdomen of fresh male specimens was dissected to expose the reproductive system and to extract the spermatophores, which were analyzed by stereoscopic, light, and scanning electron microscopy. The vas deferens can be divided macroscopically in three regions, all of them containing spermatophores. Tripartite spermatophores are composed of an elongated cylindrical main ampulla, a triangular accessory ampulla, a narrow cylindrical peduncle, and a round pedestal. Dimensions of the spermatophore components are positively correlated to the size of the crab. Morphological patterns observed in this study resemble those of other pagurid hermit crabs investigated to date. The morphological character distribution confirms classifications based on adult morphology and molecular analysis. J. Morphol. 2011. © 2011 Wiley-Liss, Inc.