Additions to the knowledge of the land snails of Sabah (Malaysia, Borneo), including 48 new species
Author
Vermeulen, Jaap J.
Author
Liew, Thor-Seng
Author
Schilthuizen, Menno
text
ZooKeys
2015
531
1
139
http://dx.doi.org/10.3897/zookeys.531.6097
journal article
http://dx.doi.org/10.3897/zookeys.531.6097
1313-2970-531-1
C845838EC9124BD8AB4E07980F91959E
Taxon classification Animalia Stylommatophora Euconulidae
Genus
Kaliella Blanford, 1863
Kaliella
Blanford, 1863: 83.
Diagnosis for the Sabah species.
Teleoconch: Radial sculpture prosocline, consisting of fine growth lines or densely placed to moderately spaced, fine riblets. Last whorl without prominent spiral threads (numerous very fine spiral threads may be present), or with 1 spiral thread or keel at the periphery.
Remarks.
The inclusion of the species listed below in
Kaliella
is merely a convenience, as is the inclusion of our concept of
Kaliella
in the
Euconulidae
. Both are inspired by an overall similarity of the shells. It is certain that our arrangement does not reflect phylogenetic relationships between the species. In fact, anatomical analysis of 5 Sabah species (
Tillier and Bouchet 1988
) reveals major differences between them, and consequently they are accommodated in two new genera
Gunongia
and
Kionghutania
. These genera are characterized by properties of the shell, radula and anatomy. We prefer not to apply the four generic names mentioned. Approximately half of the species listed below are only known by their shells, and we cannot unequivocally extend the division into four different genera over all the Sabah species. Until more phylogenetic details become apparent, we prefer to re-instate the old genus
Kaliella
. The genus
Kaliella
is typified by a species occurring in Sabah:
Kaliella barrakporensis
(Pfeiffer).
We provide a review of the Sabah species of
Kaliella
. We divide the genus into four informal groups.