title: C. nigrescens
text: # C. nigrescens
  
  C. nigrescens may refer to:
  
  * Calliophis nigrescens, the black coral snake, a venomous snake species found in the Western Ghats of India
  * Crassispira nigrescens, a sea snail species
  * Cryptotis nigrescens, the blackish small-eared shrew, a mammal species found in parts of Costa Rica, El Salvador, Guatemala, Honduras, Mexico and Panama
  
  ## Synonyms
  
  * Commiphora nigrescens, a synonym for Commiphora angolensis, a shrub species found in Angola
  