Prorocentrum compressum
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| Taxonomic Group: | Dinoflagellate |
| Trophic Status: | Autotrophic |
| Size Range: | 30-45 μm wide x 34-52.5 μm long (LUMCON Guide); 25 μm wide x 30-50 μm long (Dodge 1982) |
| Key Characteristics: | Cell broadly ovate in valve view; very slight depression on the anterior end with two opposed short spines fairly close together; valves covered with pores and shallow depressions |
| Confused With: | Prorocentrum scutellum, which has a slightly more pointed posterior end (heart-shaped) and two spines that are unequal in length and usually more robust |
| Toxin: | None known |