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.

A Review of the Long-Snouted Species of Apristurus (Chondrichthyes, Scyliorhinidae)

Kazuhiro Nakaya
Copeia
Vol. 1991, No. 4 (Dec. 13, 1991), pp. 992-1002
DOI: 10.2307/1446094
Stable URL: http://www.jstor.org/stable/1446094
Page Count: 11
  • Read Online (Free)
  • Download ($12.00)
  • 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.
A Review of the Long-Snouted Species of Apristurus (Chondrichthyes, Scyliorhinidae)
Preview not available

Abstract

Among species of the deepwater catshark genus Apristurus, some have a very long snout (long-snouted group) and are quite distinct from others in the genus. Seven nominal species from the western North Pacific and the East and South China seas are included in the group. They are reviewed taxonomically and only two species, Apristurus herklotsi and A. longicephalus, are found to be valid. The remaining five species (A. abbreviatus, A. xenolepis, A. brevicaudatus, A. longianalis, and A. longicaudatus) are synonyms of A. herklotsi. Apristurus herklotsi and A. longicephalus are distinguishable by tooth counts, width of the internostril region, number of spiral valves, and length and shape of the duodenum.

Page Thumbnails

  • Thumbnail: Page 
[992]
    [992]
  • Thumbnail: Page 
993
    993
  • Thumbnail: Page 
994
    994
  • Thumbnail: Page 
995
    995
  • Thumbnail: Page 
996
    996
  • Thumbnail: Page 
997
    997
  • Thumbnail: Page 
998
    998
  • Thumbnail: Page 
999
    999
  • Thumbnail: Page 
1000
    1000
  • Thumbnail: Page 
1001
    1001
  • Thumbnail: Page 
1002
    1002