Ken,
I have three lots of Murexul oxytatus dredged in SW Florida between 39 and 65 m of water; one lot in 2006 and 2 in 2014.
Emilio
----- Original Message -----
From: "Ken Piech" <[log in to unmask]>
To: [log in to unmask]
Sent: Sunday, August 2, 2015 4:16:21 PM
Subject: Re: [CONCH-L] localities for Murexsul oxytatus in E Florida
As a follow-up to Harry's post, here are some personal observations and
other comments, primarily about the range of Murexsul oxytatus. This past
June I found a good number of live M. oxytatus in the middle Florida Keys,
ocean side in 2-6 feet of water, always on a hard surface, usually covered
with a thin layer of fine silt. I have also found them live on hard reef,
off southeast Florida, as reported by others, and in multiple other northern
Caribbean locations, but always on a hard surface. In American Seashells
Abbott lists the range of M. oxytatus as "Florida and the West Indies." In
Murex Shells of the World, Radwin & D'Attilio list the range as "southern
Florida to the southern Caribbean." I have never personally found live M.
oxytatus on sand. I have found a few dead ones on sand, but this was near
reef. Since there have been no recent reports of M. oxytatus from Kice
Island, Sanibel Island and points further north on the Florida Gulf coast,
which have been seriously collected for many decades, it seems likely that
the habitat along the southwest Florida coast does not support a breeding
population of them. It is my understanding that the sea floor along the
southwest coast of Florida is primarily sandy bottom with little reef. This
has certainly been the case the very few times that I have been scuba diving
off Sanibel/Captiva. If more knowledgeable people have a different
understanding of the seabed off SW Florida, please let me know. Marlo
Krisberg of Let's Talk Seashells has apparently not done one of his
excellent photo essays on this species, which would be fun to see, since
this species can vary in color and shape (to a small degree). As an aside,
the BMNSM collection lists 38 lots of Murexsul oxytatus, of which two lots
of one shell each are listed as follows, #51708: "W. of Tampa", unknown
collector & date and #70644: "Off Egmont Key, St. Petersburg", unknown
collector, 1962. In light of my comments above, the locality data for these
two lots seems uncertain. Does anyone on this forum have personal
experience with collecting M. oxytatus off the west coast of Florida? Any
feedback, on-list or off-list will be appreciated. Thanks, Ken
From: Conchologists List [mailto:[log in to unmask]] On Behalf Of
Harry Lee
Sent: Sunday, August 2, 2015 10:10 AM
To: [log in to unmask]
Subject: Re: [CONCH-L] localities for Murexsul oxytatus in E Florida
The jaxshells website confirms the Biscayne Bay <
http://www.jaxshells.org/biscayne.htm
<http://www.jaxshells.org/biscayne.htm> > and Lake Worth Lagoon (Peanut
Island < http://www.jaxshells.org/peanut.htm
<http://www.jaxshells.org/peanut.htm> >, just S. of Richard's find) and adds
(introduction only) Coral Cove < http://www.jaxshells.org/coralcove.htm
<http://www.jaxshells.org/coralcove.htm> >
North and West of these SE Florida reports, i.e., Hobe Sound <
http://www.jaxshells.org/hobes.htm <http://www.jaxshells.org/hobes.htm> >,
NE Florida < http://www.jaxshells.org/marine.htm
<http://www.jaxshells.org/marine.htm> > Kice Island <
http://www.jaxshells.org/kice.htm <http://www.jaxshells.org/kice.htm> >,
Sanibel (BMSM): < http://www.shellmuseum.org/shells/southwest-florida-shells
<http://www.shellmuseum.org/shells/southwest-florida-shells> >, and NW
Florida < http://www.jaxshells.org/nwfla.htm
<http://www.jaxshells.org/nwfla.htm> >, the species has escaped notice.
The Port Canaveral scallop dump record may indicate submergence of the
species in the more temperate Carolinian subprovince.
Harry
At 12:27 AM 8/2/2015, Richard wrote:
Hi there!
I recently found a very fresh dead specimen with good color and spines in
the beach drift in John U. Lloyd State Park (Dania Beach), at the far north
end right next to the Jetty Pavilion.
Happy Shelling - Richard
_____
I collected a small number of Muricopsis oxytatus in the 1970's under rocks
in shallow water at Bear Cut, Key Biscayne, Fl. I sold my entire collection
of Shells this past Jan. - could have been from my collection but my Shells
had data. Carol Brunner
Sent from my Verizon Wireless 4G LTE DROID
Steve Rosenthal <[log in to unmask] <mailto:[log in to unmask]> > wrote:
I recently obtained a number of Murexsul/Muricopsis oxytatus from an old
Florida collection made in the late 1970s-early 1980s. There was no data
label. The shells are likely from 1 or 2 of 4 locations where most of the
material in this collection was from, ie the original collector doesn't
remember well enough to be sure.....
1. Port Canaveral Scallop Piles
2. Bear Cut (Key Biscayne), Miami, shallow water
3. Dania Beach dredging/beach restoration project 1977
4. Miami Beach dredging/beach restoration project 1979-1980
I would guess localities 3 and/or 4 are more likely. Can some of the FL
collectors/divers tell me if they found this shell in areas or situations
and/or times that correspond or correlate to any of the above? Thanks,
Steve
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