Suborder: Ventral cirri as 1 or more files of varied length; linear.
Family: Cirral files spiral obliquely around body (Illustrated Guide, 1985).
Genus: Slender or ovoid or fusiform; usually 4 spiral rows of crri; sometimes tube-dwelling (Kudo, 1966). Body long with pointed anterior; loricate; posterior of body blunt, round (Illustrated Guide, 1985). S. gracilis posterior end pointed (Carey, 1992).

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Stichotricha sp. 250 μm USA, 1999
S. secunda 150 μm Japan, 1997	S. secunda 146 μm Saitama, 1999	S. secunda 140 μm Chiba Park Chiba, 2003	S. secunda 125 x 20 μm Numa-no-hara m. Madarao highland Niigata, 2005
S. secunda 115 x 20 μm near Yamaguchi Univ. Yamaguchi, 2004	S. secunda 115 x 18 μm Onnenai Kushiro marsh Hokkaido, 2005	S. secunda 110 x 20 μm Oze-ga-hara Katashina Gunma, 2006	S. secunda μm Tatsumi-ike Nagano Nagano, 2008
S. secunda 105 μm Japan, 1998	S. secunda ? 105 x 18 μm Numa-no-hara m. Madarao highland Niigata, 2005	S. secunda ? 101 μm Japan, 1998 Movies	S. secunda ? 101 μm Japan, 1998 Movies
S. secunda ? cell μm Japan, 1999
S. secunda ? cell μm Japan, 1998	S. secunda ? cell μm Japan, 1998	S. secunda ? 90 x 17 μm Kumakubo Nasu-shiobara Tochigi, 2005	S. secunda 145 x 25 μm Nozomiko 2 Iiyama Nagano, 2007
S. socialis ? 170 μm Kazo Saitama, 2003	S. socialis ? 150 x μm Omine-numa Tsukiyono Gunma, 2003	Stichotricha μm Nabekura highland Iiyama Nagano, 2008
S. aculeata ? or S. socialis ? 135 x 20 μm Watarase Wetland Fujioka Tochigi, 2005	S. aculeata 104 x 20 μm near Karakemi m. Omachi Nagano, 2005	S. aculeata 108 x 20 μm Iroha-numa 2 Zao mountain Yamagata, 2006	S. aculeata ? 100 x μm Naruto Chiba, 2003
S. aculeata ? 75 x μm Senjo-ga-hara Nikko Tochigi, 2003	S. aculeata ? μm Naruto Chiba, 2003	Stichotricha sp. μm Motono Chiba, 2003

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