Cookies Policy

This site uses cookies. By continuing to browse the site you are agreeing to our use of cookies.

I accept this policy

Find out more here


No metrics data to plot.
The attempt to load metrics for this article has failed.
The attempt to plot a graph for these metrics has failed.
The full text of this article is not currently available.

Brill’s MyBook program is exclusively available on BrillOnline Books and Journals. Students and scholars affiliated with an institution that has purchased a Brill E-Book on the BrillOnline platform automatically have access to the MyBook option for the title(s) acquired by the Library. Brill MyBook is a print-on-demand paperback copy which is sold at a favorably uniform low price.

Access this article

+ Tax (if applicable)
Add to Favorites
You must be logged in to use this functionality

image of Journal of Crustacean Biology

ABSTRACT The question of intersexuality and hermaphroditism was investigated in the burrowing crayfish Parastacus nicoleti (Philippi, 1882) by examination of sexual characters of 473 specimens from Chile. Six sexual forms were initially identified, on the basis of the presence and absence of gonopores in the coxae of the third and fifth pair of pereiopods. Two basic sexual types were found in this species, primary females and protandric hermaphrodites, the latter consisting of 1 male-phase and 3 female-phase forms ― 1 transitional form and 2 female-phase forms-which originate from protandric hermaphrodites in male phase, through 2 slightly different ways. Permanent secondary sexual characters associated with incubation of eggs were identified in adult primary females and in the 2 protandric forms in female phase. Both the gene-dispersal model and the size-advantage model may be used to explain different aspects of this partial protandric hermaphroditism.


Full text loading...


Data & Media loading...

Article metrics loading...



Can't access your account?
  • Tools

  • Add to Favorites
  • Printable version
  • Email this page
  • Subscribe to ToC alert
  • Get permissions
  • Recommend to your library

    You must fill out fields marked with: *

    Librarian details
    Your details
    Why are you recommending this title?
    Select reason:
    Journal of Crustacean Biology — Recommend this title to your library
  • Export citations
  • Key

  • Full access
  • Open Access
  • Partial/No accessInformation