Keeled shark

Doug Yanega dyanega at POP.UCR.EDU
Fri May 5 09:33:02 CDT 2000


>At this url
>
>http://142.17.150.54/
>
>there are pictures of a small shark bearing a strange outgrowth just
>between the pectoral fins.  The specimen has been brought back by a
>former student who got it in the South (sorry, I am was not there when it
>arrived but it probably means Florida or Antilles).
>
>Helpful comments about this phenomenon are welcome.
>Thanks in advance.

Having dissected numerous gravid female sharks in physiology labs, it
strikes me that the growth is roughly in the position of an embryonic
shark's umbilicus, so maybe this is a shark that was just born and still
possesses a remnant?


Doug Yanega        Dept. of Entomology         Entomology Research Museum
Univ. of California - Riverside, Riverside, CA 92521
phone: (909) 787-4315 (standard disclaimer: opinions are mine, not UCR's)
           http://insects.ucr.edu/staff/yanega.html
  "There are some enterprises in which a careful disorderliness
        is the true method" - Herman Melville, Moby Dick, Chap. 82




More information about the Taxacom mailing list