Family: Scales cylindroid, thick, adjacent or overlapped, test usually with aperture bent to one side.
Genus: Test more or less compressed; pseudostome elliptical on end of a clear collar (Illustrated Guide, 1985).

->> Description at WPRNO

Google Image Search

Test globular, formed of numerous circular or broadly-oval scales
S. lenta μm Shibayachi m.5 Odate Akita, 2007	S. lenta 54 x 40 μm Omine-numa Tsukiyono Gunma, 2003	S. lenta μm Yokotashiro 1 Katashina Gunma, 2007	S. lenta 55 x 47 μm Kido-ike Shiga highland Nagano, 2006
S. lenta 60 x 43 μm Japan, 1998	S. lenta 50 x 35 μm Dojo-ike Norikura highland Nagano, 2006	S. lenta ? 42 x 25 μm Hazama marsh Ashikaga Tochigi, 2006	S. lenta ? 51 x 32 μm Japan, 1998
S. lenta 46 x 38 μm Hiroshima, 1998 Movies	S. lenta ? 50 x 40 μm Maimeno-ike Norikura highland Nagano, 2006	S. lenta 30 x 18 μm Yoshigadaira m. Shirane mountain Gunma, 2005	S. lenta μm Yokotashiro 1 Katashina Gunma, 2007
S. lenta ? μm Oh-numa m.5 Hachimantai Akita, 2007	S. lenta 31 x 20 μm Tanohara marsh Shiga highland Nagano, 2005
Test ovoid, formed of 4 tarnsverse rows of oval scales
S. fissirostirs 50 x 26 μm Ichinose-enchi Norikura highland Nagano, 2005	S. fissirostirs μm Yokotashiro 4 Katashina Gunma, 2007	S. fissirostirs 51 x 27 μm Sukawa highland Kurikoma mountain Akita, 2005	S. fissirostirs 53-55 x 31 μm Shijuhachi-ike Shiga highland Nagano, 2006
S. fissirostirs μm Shijuhachi-ike Shiga highland Nagano, 2008	S. fissirostirs 43 x 25 μm Mumei marsh Shiga highland Nagano, 2006	S. fissirostirs 50 x 38 μm Maimeno-ike 3 Norikura highland Nagano, 2007
Test small, ovoid, compressed, formed by 2 large oval plates
S. macroleps ? μm Sensho-ga-hara Shizukuishi Iwate, 2007
Test not compressed, pseudostome dented
S. dentata ? 39 x 31 μm Hakama marsh Madarao highland Niigata, 2005	S. dentata ? 29 x 20 μm Numa-no-hara m. Madarao highland Niigata, 2005

Please click on images for viewing enlarged.

Copyright Protist Information Server