Description
Cell s ovate to obo vate , slightly fl att ened; flage ll a arise from an anterio r depress ion ; ante ri or fl agell um is app roximate ly th e same .. 5 length as the cell , bu t the trailing flagel lum is slightly lo nger ; trichocysts predominantly grouped at posterior end; chlo roplasts RAPHIDOMONA Figs . 1-4. Diagram of marine raphidomonads to allow comparison of cell size , shape, and insertion of flagella ; all at same magnification ; scale bar=1 0 1-Jm. Fig . 1. Chattonella subsalsa drawn from lateral surface to illustrate insertion of the flagella and structure of the ca udus . Figs. 2-4 are drawn in ventral view to illustrate ce ll shape and insertion of flagella ; Fig . 2. Fibrocapsa japonica. Fig . 3. Heterosigma akashiwo. Fig . 4. 0/isthodiscus !uteus . Figs . 1 and 3 are based on the il lu strations in Table 3 of Hara and Chihara (1987) ; Fig . 2 is based on Fig . 1 of Hara and Chihara (1985); Fig . 4 is based on Fig . 1 of Hara et al. (1985). forming a single layer below the plasmalemma are yellowish -green or brown . See Hara and Chihara (1985}, Toriumi and Takano (1973} . IJm ; many rod- shaped trichocysts often grouped at posterior end can eject threads up to 300 IJm in length ; each chloroplast possesses a pyrenoid ; chloroplasts may be so tightly abutted at the cell periphery that they appear as one large reticulate chloroplast. trailing flagellum (usually over ventral surface) shown at side of cell; chloroplasts stippled ; Golgi apparatu s and vesicles arrowed between nucleus (N) and contracti le vacuole (CV) ; group of trichocysts shown at posterior end of cell . x1 000 . Fig . 6. Gonyostomum Ia tum , ventral view ; organelles as Fig. 5. x1 ,000 . Figs . 5-8 from Fott (1968) by permission of E. Schweizerbart'sche Verlagsbuchhandlung 748 RAPHIDOMONADID
Type species
Fibrocapsa japonica Toriumi & Takano , 1973 (Fig . 2} . Cell 20-30 x15-17
Figures
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Raw text
Cell s ovate to obo vate , slightly fl att ened; flage ll a arise from an anterio r depress ion ; ante ri or fl agell um is app roximate ly th e same .. 5 length as the cell , bu t the trailing flagel lum is slightly lo nger ; trichocysts predominantly grouped at posterior end; chlo roplasts RAPHIDOMONA Figs . 1-4. Diagram of marine raphidomonads to allow comparison of cell size , shape, and insertion of flagella ; all at same magnification ; scale bar=1 0 1-Jm. Fig . 1. Chattonella subsalsa drawn from lateral surface to illustrate insertion of the flagella and structure of the ca udus . Figs. 2-4 are drawn in ventral view to illustrate ce ll shape and insertion of flagella ; Fig . 2. Fibrocapsa japonica. Fig . 3. Heterosigma akashiwo. Fig . 4. 0/isthodiscus !uteus . Figs . 1 and 3 are based on the il lu strations in Table 3 of Hara and Chihara (1987) ; Fig . 2 is based on Fig . 1 of Hara and Chihara (1985); Fig . 4 is based on Fig . 1 of Hara et al. (1985). forming a single layer below the plasmalemma are yellowish -green or brown . See Hara and Chihara (1985}, Toriumi and Takano (1973} . IJm ; many rod- shaped trichocysts often grouped at posterior end can eject threads up to 300 IJm in length ; each chloroplast possesses a pyrenoid ; chloroplasts may be so tightly abutted at the cell periphery that they appear as one large reticulate chloroplast. trailing flagellum (usually over ventral surface) shown at side of cell; chloroplasts stippled ; Golgi apparatu s and vesicles arrowed between nucleus (N) and contracti le vacuole (CV) ; group of trichocysts shown at posterior end of cell . x1 000 . Fig . 6. Gonyostomum Ia tum , ventral view ; organelles as Fig. 5. x1 ,000 . Figs . 5-8 from Fott (1968) by permission of E. Schweizerbart'sche Verlagsbuchhandlung 748 RAPHIDOMONADID