World Congress of Malacology Antwerp ... - Unitas Malacologica

was also used as arena by the Romans. The city was famous with the statues. The statues signed by
sculptures of Afrodisyas were found out in Italy, Greece and the other countries around
Mediterranean. Also the marble blocks were exported. The marbles were obtained from the mine
which still exists and is 2 kilometers east of Babadağ. The city was conquered by Turks at the 12th
century A. D.
The land snails were collected from the antique city and its surroundings with the permision of the
local authority in April-2007.
9 species were reported. The distribution of “Caracollina lenticula (Michaud, 1831)” as a
synanthropic beach species in this antique settlement is discussed. Also the anatomical dissection of
the Helix sp. is given.
We would like to thank for Ayşe Yıldırım for her helps in collecting the snails.
Analysing speciation patterns – lessons from rissooidean and hydrocenid gastropods calling for
the integration of methodologies
Haase, Martin
Vogelwarte, Zoologisches Institut und Museum der Universität Greifswald, Soldmannstraße 16, D-
17489 Greifswald, Germany,
Email: martin.haase@uni-greifswald.de
Many small species of gastropod, especially those occurring in fresh water, have a low potential for
dispersal and consequently restricted ranges. Yet, their diversity may be very high suggesting high
rates of speciation. Small species tend to be poor in morphological characters resulting in a high
degree of homoplasy. Often, species cannot be discriminated based on morphological data alone,
because the taxonomic value of a morphological difference is difficult to interpret. Phylogenetic
analyses based on morphological data are practically impossible. Genetic methods, especially
sequence analyses, have brought enormous progress. However, there are a number of examples also
of genetically cryptic species. Presenting cases from rissooidean and hydrocenid gastropods I will
show that only the synthesis of morphological and genetic methods can really enhance taxonomic and
phylogenetic analyses. In addition, the integrative approach is setting the stage for evolutionary
analyses such as that of speciation patterns.
Dynamic gastropods: morphological and genetic differentiation of the land snail Arianta
arbustorum in an Alpine massif
Haase, Martin 1 ; Misof, Bernhard 2
1. Vogelwarte, Zoologisches Institut und Museum der Universität Greifswald, Soldmannstraße 16, D-
17489 Greifswald, Germany,
Email: martin.haase@uni-greifswald.de
2. Zoologisches Forschungsmuseum Alexander Koenig, Adenauerallee 160, D-53113 Bonn,
Germany, Email: b.misof.zfmk@uni-bonn.de
Based on a sequence fragment of mtDNA and a very variable microsatellite locus we analyzed the
genetic differentiation of more than 400 individuals of the land snail Arianta arbustorum collected in
62 localities of the Alpine massif Gesäuse, where four morphotypes, characterized by geometric
morphometrics, occur in close vicinity. We aimed at understanding actual and historical evolutionary
processes among the morphotypes. With 135 haplotypes diverging up to 12.5% and 18 microsatellite
alleles, genetic diversity was extremely high. The most common haplotype was found in all four
morphotypes across the entire study area. Morph-specific haplotypes or alleles could not be
identified. Phylogenetic analyses indicated that A. arbustorum has colonized the Gesäuse several
times in consecutive waves and that introgression of neutral or near neutral markers across
morphotypes and selection on shell shape, whose differentiation is apparently ancient, have played an
important role. Gene flow was more likely between locally close, different morphotypes than among
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