A new species of Baikal endemic sponges (Porifera, Demospongiae, Spongillida, Lubomirskiidae)

This paper reports on a new species of the Baikal endemic sponge (fam. Lubomirskiidae) Swartschewskia khanaevi sp. nov. The description of this species is based on morphological and molecular data (ITS and mitochondrial IGRs). Morphologically, S. khanaevi sp. nov. differs from S. papyracea by loose...

Full description

Bibliographic Details
Main Authors: Natalia A. Bukshuk, Olga O. Maikova
Format: Article
Language:English
Published: Pensoft Publishers 2020-01-01
Series:ZooKeys
Online Access:https://zookeys.pensoft.net/article/39534/download/pdf/
Description
Summary:This paper reports on a new species of the Baikal endemic sponge (fam. Lubomirskiidae) Swartschewskia khanaevi sp. nov. The description of this species is based on morphological and molecular data (ITS and mitochondrial IGRs). Morphologically, S. khanaevi sp. nov. differs from S. papyracea by loose tracts arranged in an irregular network as well as the presence on strongyles of compound spines looking like tubercles densely ornamented with simple spines. Moreover, specimens of S. khanaevi sp. nov. show a peculiar structure of the aquiferous system at the body surface that may be an adaptive trait for environmental conditions. Phylogenetic analysis has revealed that S. khanaevi sp. nov. forms a well-supported (0.99) monophyletic clade with S. papyracea and is allocated as its sister taxa.
ISSN:1313-2989
1313-2970