C. nigricans may refer to: Caecilia nigricans, an amphibian species found in Colombia, Ecuador and Panama Calyptranthes nigricans, DC., a plant species in the genus Calyptranthes Camponotus nigricans, Roger, 1863, an ant species in the genus Camponotus Carex nigricans, a species of sedge Celaenorrhinus nigricans, the small banded flat, a butterfly species found in South and Southeast Asia Cercomacra nigricans, the jet antbird, a bird species found in Brazil, Colombia, Ecuador, Panama and Venezuela Chalcosyrphus nigricans, Shiraki, 1968, an hoverfly species in the genus Chalcosyrphus Chinemys nigricans, the red-necked pond turtle, a turtle species endemic to China Clanculus nigricans, a sea snail species in the genus Clanculus Clarias nigricans, a catfish species only known from the Mahakam River in eastern Borneo Claviceps nigricans a species of Ergot fungi Corunastylis nigricans, (R.Br.) D.L.Jones & M.A.Clem., the Mallee midge-orchid, a plant species in the genus Corunastylis Creugas nigricans, C. L. Koch, 1841, a spider species in the genus Creugas and the family Corinnidae found in Mexico and Colombia Crocidura nigricans, the blackish white-toothed shrew, a mammal species endemic to Angola Cyathea nigricans, a tree fern species in the genus Cyathea Cyerce nigricans, a sacoglossan sea slug species
See also Nigricans (disambiguation)