Cephalodiscus+nigrescens


 * Phylum: Hemichordata **
 * Common Name: ** Cephalodiscus Nigrescens


 * Scientific Name: **// Cephalodiscus nigrescens //


 * Class: ** Pterobranchia


 * Location: ** Antarctic Regions


 * Size: ** From a few centimeters to 2 meters


 * Habitat: ** Deep waters in the antarctic


 * Living requirements: ** Living on the sea floor usually in deep waters and with very cold tempeatures.


 * Life cycle: ** Sexual reproduction in pterobranchs produces non-feeding larvae that are brooded in the colony. Asexual reproduction occurs in at least some acorn worms and in most pterobranchs.


 * Male and female differences: ** There are separate male and females, you just cannot distinguish the difference externally


 * Interesting Facts: **
 * They live in colonies
 * Their bodies are divided into three parts; an anterior proboscis, a collar, and a trunk.
 * They have gill slits




 * Zookeeper Hannah Jones **

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