Anadara chemnitzi the valves do not overlap - there is only one chemnitzi
pictured on the plate, unfortunately I do no have lateral images.

All the other shells have overlapping valves, too bad I do not possess a
single specimen from Brazil here.

Marcus


>Harry,
>
>
>
>Expurgate is rather strong.  Maybe just expunge.
>
>
>
>I count 7 specimens.  I�ve numbered them:
>http://z14.invisionfree.com/Conchologist_Forum/index.php?showtopic=2030 .
>#2 (4 images) is the Texas shell I would categorize as A. brasiliana.
I�ve
>never seen A. chemnitzii, so I�m reluctant to make a judgment based upon
>these photos as to whether #1 and 3-7 (13 images) are the same (all A.
>chemnitzii or something else).  However, I would concur that #1 and 3-7
>appear distinguishably different than #2, which is very close to the shells
>from NE Florida you and I are calling A. brasiliana.
>
>
>
>Marcus, time to jump in.
>
>
>
>Marlo
>
>
>
>From: Harry G. Lee
>Sent: Wednesday, December 08, 2010 6:59 PM
>
>
>
>Dear Marcus and Marlo,
>
>It seems to me someone needs to expurgate Markus' plate of an imposter. I
>appears to me there are five (5) specimens [nine (9) images] of Scapharca
>chemnitzii (Philippi, 1851), rather than two (2) specimens [four (4)
images]
>as captioned, in the composite.
>
>BTW, Say contrasted his Arca incongrua with A. rhombea, which he attributed
>to Brugui�re. Actually A. rhombea dates to Born (1778: 76-77; see <
>http://www.archive.org/stream/ignatiibornindex00born#page/240/mode/2up
><http://www.archive.org/stream/ignatiibornindex00born#page/240/mode/2up>
>>). Rosenberg lists this taxon as a (senior) synonym of S. chemnitzii, but
>the figure Born cited in Lister (no. 244) is not very convincing [vidi].
>
>Born, I.A., 1778. Index rerum naturalium Musei Caesarei Vindobonensis
>Verzeichniss der nat�rlichen Seltenheiten des K.K. naturalien Kabinets zu
>Wien: Erster Theil, Schalthiere. Pars 1 : Testacea. J.P. Kraus, Vienna.
>[xxxviii] + 1-458 + lxxviii] + 1 plate.
>
>Rosenberg, G., 2009. Malacolog 4.1.1: A Database of Western Atlantic Marine
>Mollusca. [WWW database (version 4.1.1)] URL http://www.malacolog.org/.
>[last accessed today].
>
>Harry
>
>
>
>
>

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