Ceratocorys horrida

{{Short description|Species of single-celled organism}}

{{Speciesbox

| image = Ceratocorys horrida - dinoflagellate magnified 1000 times - Smithsonian Museum of Natural History - 2012-05-17.jpg

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| genus = Ceratocorys

| species = horrida

| authority = F.Stein, 1883{{cite book |last=Esterly |first=Calvin Olin |date=1911 |title=Third Report on the Copepoda of the San Diego Region |url=https://books.google.com/books?id=3HZAinsTC9sC&pg=PA180 |location= |publisher=University of California Press |page=180 |isbn= |author-link= }}

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Ceratocorys horrida is a species of dinoflagellate. The species was first listed by F. Stein in 1883. The body may be round in shape, or angular.{{cite book |last=Tomas |first=Carmelo R. |date=1997 |title=Identifying Marine Phytoplankton |url=https://books.google.com/books?id=8WLABHmo-K8C&pg=PA482 |location= |publisher=Elsevier |page=482 |isbn=9780080534428}} The species has spines emanating from its body which may vary in length, which has resulted in the species described in various forms. C. horrida is widespread around the globe, found in temperate to tropical ocean waters in the Neritic zone. It is among the dominant species in the Humboldt Current.{{cite book |last1=Seeliger |first1=U.|last2=Kjerfve |first2=B. |date=2000 |title=Coastal Marine Ecosystems of Latin America |url=https://books.google.com/books?id=drF30PA45o8C&pg=PA233 |location= |publisher=Springer Science & Business Media |page=233 |isbn=9783540672289 |author-link= }}