Access

You are not currently logged in.

Access your personal account or get JSTOR access through your library or other institution:

login

Log in to your personal account or through your institution.

If You Use a Screen Reader

This content is available through Read Online (Free) program, which relies on page scans. Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.

Sibling Species in Artemia (Crustacea:Branchiopoda)

A. M. Halfer-Cervini, M. Piccinelli, T. Prosdocimi and L. Baratelli-Zambruni
Evolution
Vol. 22, No. 2 (Jun., 1968), pp. 373-381
DOI: 10.2307/2406535
Stable URL: http://www.jstor.org/stable/2406535
Page Count: 9
  • Read Online (Free)
  • Download ($4.00)
  • Subscribe ($19.50)
  • Cite this Item
Since scans are not currently available to screen readers, please contact JSTOR User Support for access. We'll provide a PDF copy for your screen reader.
Sibling Species in Artemia (Crustacea:Branchiopoda)
Preview not available

Abstract

The purpose of the present paper is to analyze the causes of sterility in crosses between two sympatric forms of Artemia salina, one of which predominates in the salt ponds of San Bartolomeo (Sardinia, Italy), and the other in those of Hidalgo (Argentina). The two forms are slightly different in some morphological and developmental characters. It has been found that one of the forms (common in Cagliari) has a normal chromosome number of 42, and therefore is the typical Artemia salina (L.); the other, Artemia persimilis Piccinelli and Prosdocimi, has 44 chromosomes of smaller size, and is thus to be considered heteroploid in respect of the former. The two forms are thus sibling species.

Page Thumbnails

  • Thumbnail: Page 
373
    373
  • Thumbnail: Page 
374
    374
  • Thumbnail: Page 
375
    375
  • Thumbnail: Page 
376
    376
  • Thumbnail: Page 
377
    377
  • Thumbnail: Page 
378
    378
  • Thumbnail: Page 
379
    379
  • Thumbnail: Page 
380
    380
  • Thumbnail: Page 
381
    381