J. Larsen et al., A REDESCRIPTION OF SCRIPPSIELLA-HANGOEI (SCHILLER) COMB-NOV - A RED TIDE DINOFLAGELLATE FROM THE NORTHERN BALTIC, Phycologia, 34(2), 1995, pp. 135-144
Scrippsiella hangoei (Schiller) comb. nov. is one of the most abundant
species during the winter-spring season in the northern Baltic Sea. I
t has formed blooms under the ice on several occasions with cell conce
ntrations reaching 24 x 10(6) l(-1). The species is described by light
and scanning electron microscopy and shown to be identical to Peridin
ium gracile Lindemann 1924, nom. illeg. The plate formula is pp, vap o
r X, 4', 3(4)a, 7'', 6c, 7s, 5''', Op, 2''''. In the northern Baltic i
t forms organic cysts, and an extension of the generic boundary of Scr
ippsiella is discussed, to include species with non-calcareous cysts.