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Partial Protandric Hermaphroditism in the Burrowing Crayfish Virilastacus Rucapihuelensis Rudolph and Crandall, 2005 (Decapoda, Parastacidae)

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Abstract Rudolph and Crandall (2005) found a high percentage (81.3%) of intersex specimens with supernumerary gonopores in the Virilastacus rucapihuelensis type series. To determine the sexual system of this species, the sexual characters of 734 specimens collected from 5 populations of V. rucapihuelensis were examined. Six sexual forms were initially identified, on the basis of the presence or absence of gonopores in the coxae of the third and fifth pair of pereiopods. Subsequently, anatomical and histological analysis of gonads, gonoducts and androgenic gland, made it possible to distinguish three basic sexual types: male, female and intersex specimens; the latter comprise a male phase and two forms in female phase, which would originate from male phase intersexes. Ovigerous females and secondary sexual characters associated with eggs incubation were identified in adult females and in the intersexes in female phase. Evidence gathered suggests that V. rucapihuelensis is a partial protandric hermaphrodite species, with primary males and females. The possible neurohormonal mechanisms responsible for this type of sexual system are discussed, as are the external factors that could have a modifying effect on them.

Affiliations: 1: (EHR correspondence, FAR, AWM) Departamento de Ciencias Básicas, Universidad de Los Lagos, Casilla 933, Osorno, Chile (;;


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1. Adiyodi R. G. , Subramoniam T. 1983 "Arthropoda Crustacea,." pp. 443-495. In, K. G. Adiyodi and R. G. Adiyodi (eds.), Reproductive Biology of Invertebrates. Vol. 1. John Wiley and Sons, New York. New York
2. Almeida A. , Buckup L. 2000 "Occurrence of protandric hermaphroditism in a population of the neotropical freshwater crayfish Parastacus brasiliensis (Parastacidae)." Journal of Crustacean Biology Vol 20 224 230
3. Amato G. , Payen G. 1976 "Transplantations homoplastiques de testicules d'crevisse, Pontastacus leptodactylus leptodactylus (Eschscholtz, 1823), en repos sexuel dans des mâles et des femelles normaux et pdonculs; rsultats prliminaires." Comptes Rendus Hebdomadaires des Sances de l'Acadmie des Sciences, Tome Vol 283 (Srie D) 1783 1786
4. Amato G. , Payen G. 1978 "Mise en vidence du côntrole endocrine des diferentes tapes de la spermatognese chez l'crevisse Pontastacus leptodactylus leptodactylus (Eschscholtz, 1823) Crustac, Dcapode, Reptantia." General and Comparative Endocrinology Vol 36 487 496
5. Bauer R. T. 2002 "Test of hypotheses on the adaptive value of an extended male phase in the hermaphroditic shrimp Lysmata wurdemanni (Caridea: Hippolytidae)." Biological Bulletin Vol 203 347 357
6. Charniaux-Cotton H. 1975 "Hermaphroditism and gynandromorphism in Malacostracan Crustacea,." pp. 91-105. In, R. Reinboth (ed.), Intersexuality in the Animal Kingdom. Springer-Verlag, Berlin, Heildelberg, New York
7. Charniaux-Cotton H. , Payen G. 1988 "Crustacean reproduction,." pp. 279-303. In, H. Laufer and R. G. H. Downer (eds.), Endocrinology of Selected Invertebrate Types. Vol. 2. Alan R. Liss, Inc., New York
8. Charniaux-Cotton H. , Payen G. , Ginsburger-Vogel T. 1991 "Arthropoda-Crustacea: sexual differentiation,." pp. 279-321. In, K. G. Adiyodi and R. G. Adiyodi (eds.), Reproductive Biology of Invertebrates. Vol. 5 (17). Oxford and IBH Publishing Co., BVT. LTD, New Delhi
9. Faxon W. 1914 "Notes on the crayfishes in the United States Museum and the Museum of Comparative Zoology, with descriptions of new species and subspecies, to which is appended a catalogue of the know species and subspecies." Memoirs of The Museum of Comparative Zoology at Harvard College Vol 40 351 427
10. Fingerman M. 1987 "The endocrine mechanism of crustaceans." Journal of Crustacean Biology Vol 7 1 24
11. Ghiselin M. T. 1969 "The evolution of hermaphroditism among animals." Quarterly Review of Biology Vol 44 189 208
12. Hasegawa Y. , Hirose E. , Katakura Y. 1993 "Hormonal control of sexual differentiation and reproduction in Crustacea." American Zoologist Vol 33 403 411
13. Hoagland E. K. 1984 "Use of the terms protandry, protogyny, and hermaphroditism in Malacology." American Malacological Bulletin Vol 3 85 88
14. Hobbs H. H. Jr. 1991 "A new generic assignment for a South American crayfish (Decapoda, Parastacidae) with revised diagnoses of the South American genera and comments on the parastacid mandible." Proceedings of the Biological Society of Washington Vol 104 800 811
15. Honan J. , Mitchell B. 1995 "Reproduction of Engaeus bispinosus Clark (Decapoda, Parastacidae), and trends in the reproductive characteristics of freshwater crayfish." Marine and Freshwater Research Vol 46 485 499
16. Horwitz P. 1988 "Secondary sexual characteristics of females of the freshwater crayfish genus Engaeus. (Decapoda, Parastacidae)." Crustaceana Vol 54 25 32
17. Horwitz P. 1990 "A taxonomic revision of species in the freshwater crayfish genus Engaeus Erichson (Decapoda, Parastacidae)." Invertebrate Taxonomy Vol 4 427 614
18. Jara C. 1983 "Segundo registro de Parastacus araucanius Faxon, 1914 (Crustacea: Decapoda: Macrura)." Archivos de Biologa y Medicina Experimentales Vol 16 163
19. Katakura Y. 1989 "Endocrine and genetic control of sex differentiation in the malacostracan Crustacea." Invertebrate Reproduction and Development Vol 16 177 182
20. Legrand J-J. , Juchault P. 1994 "Ontogenese du sexe et physiologie sexuelle,." pp. 631-715. In, J. Forest (ed.), Trait de Zoologie, Tome VII, Crustacs, Fascicule 1, Morphologie, Physiologie, Reproduction, Embryologie Masson, Paris
21. Medley P. , Rouse D. 1993 "Intersex Australian red claw crayfish Cherax quadricarinatus." Journal of Shellfish Research Vol 12 93 94
22. Meusy J-J. , Payen G. 1988 "Female reproduction in malacostracan Crustacea." Zoological Science Vol 5 217 265
23. Payen G. 1973 "tude descriptive des principales tapes de la morphogense sexuelle chez un crustac dcapode dveloppement condens, lcrevisse Pontastacus leptodactylus leptodactylus (Eschscholtz, 1823)." Annales d'Embryologie et de Morphogense Vol 6 179 206
24. Riek E. F. 1971 "The freshwater crayfishes of South America." Proceedings of the Biological Society of Washington Vol 84 129 136
25. Rigaud T. , Juchault P. 1998 "Sterile intersexuality in an isopod induced by the interaction between a bacterium (Wolbachia) and the environment." Canadian Journal of Zoology Vol 76 493 499
26. Rudolph E. 1995a "Partial protandric hermaphroditism in the burrowing crayfish Parastacus nicoleti (Decapoda: Parastacidae)." Journal of Crustacean Biology Vol 15 720 732
27. Rudolph E. 1995b "A case of gynandromorphism in the freshwater crayfish Samastacus spinifrons (Philippi, 1882) (Decapoda: Parastacidae)." Crustaceana Vol 68 705 711
28. Rudolph E. 1997a "Intersexualidad en el camarn excavador Parastacus pugnax (Poeppig, 1835) (Decapoda: Parastacidae)." Investigaciones marinas, Valparaso Vol 25 7 18
29. Rudolph E. 1997b "Aspectos fisicoqumicos del hbitat y morfologa de las galeras del camarn excavador Parastacus nicoleti (Philippi, 1882) (Decapoda: Parastacidae) en el sur de Chile." Gayana Zoologa Vol 61 97 108
30. Rudolph E. 2002 "New records of intersexuality in the freshwater crayfish Samastacus spinifrons (Decapoda: Parastacidae)." Journal of Crustacean Biology Vol 22 377 389
31. Rudolph E. , Rivas H. 1988 "Nuevo hallazgo de Samastacus araucanius (Faxon, 1914) (Decapoda: Parastacidae)." Biota, Osorno, Chile Vol 4 73 78
32. Rudolph E. , Almeida A. 2000 "On the sexuality of South American Parastacidae (Crustacea, Decapoda)." Invertebrate Reproduction and Development Vol 37 249 257
33. Rudolph E. , Verdi A. , Tapia J. 2001 "Intersexuality in the burrowing crayfish Parastacus varicosus Faxon, 1898 (Decapoda, Parastacidae)." Crustaceana Vol 74 27 37
34. Rudolph E. , Rojas C. 2003 "Embryonic and early postembryonic development of the burrowing crayfish, Virilastacus araucanius (Faxon, 1914) (Decapoda, Parastacidae) under laboratory conditions." Crustaceana Vol 76 835 850
35. Rudolph E. , Crandall K. A. 2005 "A new species of burrowing crayfish Virilastacus rucapihuelensis (Crustacea, Decapoda, Parastacidae) from southerm Chile." Proceedings of the Biological Society of Washington Vol 118 765 776
36. Sadovy Y. , Shapiro D. 1987 "Criteria for the diagnosis of hermaphroditism in fishes." Copeia Vol 1987 136 156
37. Sagi A. , Khalaila I. , Barki A. , Hulata G. , Karplus I. 1996 "Intersex red claw crayfish, Cherax quadricarinatus (von Martens): functional males with pre-vitellogenic ovaries." Biological Bulletin Vol 190 16 23
38. Scholtz G. , Braband A. , Tolley L. , Reimann A. , Mittmann B. , Lukhaup C. , Steuerwald F. , Vogt G. 2003 "Parthenogenesis in an outsider crayfish." Nature Vol 421 806
39. Spotorno A. 1996 "Biodiversidad: marco terico y desafos en Chile,." pp. 141-148. In, M. Muñoz, H. Nñez, y J. Ynez (eds.), Libro rojo de los sitios prioritarios para la conservacin de la diversidad biolgica en Chile. Ministerio de Agricultura, Corporacin Nacional Forestal, Santiago. Chile
40. Vogt G. , Tolley L. , Scholtz G. 2004 "Life stages and reproductive components of the Marmorkrebs (Marbled Crayfish), the first parthenogenetic decapod crustacean." Journal of Morphology Vol 261 286 311
41. Warner R. R. 1975 "The adaptive significance of sequencial hermaphroditism in animals." American Naturalist Vol 109 61 82
42. Zar J. H. 1999 "Biostatistical Analysis." Prentice-Hall, Inc., Englewood Cliffs, New Jersey. 620 pp
43. Zupo V. 2001 "Influence of diet on sex differentiation of Hippolyte inermis Leach (Decapoda: Natantia) in the field." Hydrobiologia Vol 449 131 140

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