Eulithidium in error? Thats funny, it was my understanding that the change was made because Tricolia was originally named in the Pacific... oh well, the names of my favorite bugs keep changing...
My own search for info on Cerithium litteratum has indicated they can inhabit a wide range of substrates but particularly like rocks, coral rubble, and seagrass (mostly Thalassia). What I don't know is: 1) what are the preferred water parameters, prefered epibiont food sources, etc., and 2) how reliable their reported circum-Caribbean range actually is and if that range is being split into subspecific distributions?
Chad Ferguson
---- Original message ----
>Date: Wed, 31 May 2006 22:55:00 +0200
>From: "M. J. Faber" <[log in to unmask]>
>Subject: Re: Tricolia affinis (Eulithdium affine) and Cerithium litteratum
>To: [log in to unmask]
>
>A few times times I have seen living Cerithium litteratum on large
>short-spined sea urchins on rather barren sandy bottoms two to six ft deep
>(observations made at Grand Turk, 1990, San Salvador, 1996, and some other
>places). What exactly they were doing there I do not know, not feeding on
>the sea urchin of course, maybe piggybacking with a little protection from
>predators. The use of the genus name Eulithidium for most western Atlantic
>tricoliids may be wrong.
>
>Marien
>www.mollus.nl
>
>----- Original Message -----
>From: "Chad Ferguson" <[log in to unmask]>
>To: <[log in to unmask]>
>Sent: Wednesday, May 31, 2006 9:09 PM
>Subject: Tricolia affinis (Eulithdium affine) and Cerithium litteratum
>
>
>> I’m looking for information on the natural histories/life habits and
>> ranges
>> of Tricolia affinis and Cerithium litteratum.
>>
>> Here is why: I’ve got a site in St. Croix, USVI where I resampled the
>> same
>> transect as a previous study (1980) in 2002. At the time of original
>> sampling, Cerithium litteratum was highly abundant. During resampling,
>> Cerithium litteratums was absent and the population of Tricolia had
>> increased dramatically. This is recorded in the shell assemblage despite
>> time-averaging.
>>
>> I’m working on finishing an article on this and am interested in
>> literature
>> or other sources of info on these two taxa and on the current taxonomy of
>> Eulithidium (used to be Tricolia). I’m currently using Abbot 1974 and
>> Redfern 2001 in conjunction but they don’t include much in the way of
>> habitat/environmental prefs (aside from seagrass...).
>>
>> Thanks.
>>
>> ----------------------------------------------------------------------
>> [log in to unmask] - a forum for informal discussions on molluscs
>> To leave this list, click on the following web link:
>> http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
>> Type your email address and name in the appropriate box and
>> click leave the list.
>> ----------------------------------------------------------------------
>
>----------------------------------------------------------------------
>[log in to unmask] - a forum for informal discussions on molluscs
>To leave this list, click on the following web link:
>http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
>Type your email address and name in the appropriate box and
>click leave the list.
>----------------------------------------------------------------------
----------------------------------------------------------------------
[log in to unmask] - a forum for informal discussions on molluscs
To leave this list, click on the following web link:
http://listserv.uga.edu/cgi-bin/wa?SUBED1=conch-l&A=1
Type your email address and name in the appropriate box and
click leave the list.
----------------------------------------------------------------------
|
