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Date: | Sat, 1 Aug 1998 10:49:49 +0100 |
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Dear All Volutists,
*Actually there are two species confused in Scaphella gouldiana complex:
The dwarf creamy-white unicolored shell with four stong straight
columellar plaits, still undescribed, and the true one with large brown
spiral bands with only three weak oblique columellar plaits. This fact
has been well pointed out by Andrew Dickson in "Of sea and shore" 1996
19:1. The original picture of Holotype of Scaphella gouldiana
(Dall,1887) show a pale form of the latter.
*Problem is the connection whith other close species of genus Scaphella.
Not with Scaphella dohrni forma florida Clench & Agayo,1940 because of
constant difference in shape of coronated knobs/ribs and absence of true
intermediate specimens, but surprisingly with Scaphella robusta
(Dall,1889): Some rare deep water specimens with large whorls, reduced
number of knobs/ribs and fused spiral spots are very hard to classify.
Species within genus Scaphella show such a polytypism that statistical
studies with numerous specimens is needed.
Pat Bail
2 square la Fontaine
75016 Paris-France.
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