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 first zoeal larva of the shrimp Gnathophyllum americanum Guerin is described and illustrated. The morphology of the larva is typical of pontoniine larvae of the family Palaemonidae. The morphology of most adult gnathophyllid shrimps shows no consistent differences from some of the more highly specialized commensal pontoniine shrimps, although exhibiting extreme forms of trends apparent in that subfamily. The adult and larval morphology indicate that the gnathophyllid shrimps are modified members of the Palaemonidae and should be included in that family. There also appears to be no adequate reason to separate most of them from the subfamily Pontoniinae as presently defined. However, the genera Hymenocera and Phyllognathia possess a unique form of third maxilliped, which suggests a separate origin from Gnathophyllum, Gnathophylloides, Pycnocaris, and Levicaris. In contrast, the larvae of the genus Anchistioides Paulson are considered so aberrant amongst the Palaemonidae that they cannot be considered as members of the Palaemoninae or Pontoniinae. They should be given the status of belonging to a separate subfamily on the basis of their larval characters, in conjunction with some of their adult characters, as was originally proposed by Gurney (1938). A key to the revised subfamilies of the Palaemonidae incorporating these proposed changes is provided.


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