Family: trophonts free-swimming; with rigid aboral bristles or short caudal cilia; no ciliated telotrochal band; swim with oral end forward (Illustrated Guide, 1985).
Genus: With several girdles of spines around cell body (Illustrated Guide, 1985).
->> Description at WPRNO Google Image Search
H. radians or
H. aesculacantha ?
31 x 23 μm
Japan, 1999
H. radians or
H. aesculacantha ?
39 x 31 μm
Saitama, 1999
