Illustrated description of these primitive chordates, which are small, eel-like, unprepossessing animals that spend much of their time buried in sand. ... With about twenty-five species inhabiting shallow tropical and temperate oceans, the Cephalochordata are a very small branch of the animal kingdom.
www.ucmp.berkeley.edu/chordata/cephalo.html
Lancelet - Wikipedia, the free encyclopedia
Source
The lancelets (also known as amphioxus ) are the modern representatives of the subphylum Cephalochordata, usually said to be the sister group of the craniates. They are usually found buried in san...
en.wikipedia.org/wiki/Lancelet
Cephalochordata (or lancelets, traditionally known as amphioxus, plural amphioxi) is a subphylum of marine invertebrates of the phylum Chordata. They are usually found in shallow parts of temperate or tropical seas. ... The notochord of cephalochordata, unlike the vertebrate spine, extends into the head.
www.newworldencyclopedia.org/entry/Cephalochordata www.newworldencyclopedia.org/entry/Cephalochordata
Cephalochordata - Wikipedia, the free encyclopedia
Cephalochordata is a chordate subphylum defined by the presence of a notochord that persists throughout life. It is represented in the modern oceans by the lancelets. Fossil species are also known fr...
en.wikipedia.org/wiki/Cephalochordata
Jump to: navigation, search ... Subphylum: Cephalochordata; Classis: Leptocardia; Ordo: Branchiostomatida; Familiae: Asymmetronidae - Branchiostomidae ... For more multimedia, look at Cephalochordata on Wikimedia Commons.
species.wikimedia.org/wiki/Cephalochordata species.wikimedia.org/wiki/Cephalochordata
This class includes the several species of lancelets, or amphioxi, small, fishlike, filter-feeding animals found in shallow water. A lancelet has a long body, ... At one end is a mouth surrounded by prominent bristles and leading into a pharynx. The dorsal, tubular nerve cord is slightly enlarged in the anterior region,
www.infoplease.com/ce6/sci/A0857331.html
The tunicates are marine, filter-feeding animals. The most prominent tunicates are the sea squirts (class Ascidiacea), which show affinities to other chordates only in the juvenile stage. Adult sea squirts are sessile (attached), globular or tubular animals, often with prominent incurrent ... Subphylum Cephalochordata...
www.infoplease.com/ce6/sci/A0857330.html
Class Cephalochordata (lancelets). pictures. Family Asymmetronidae · pictures. Family Branchiostomidae · Home ¦ About Us ¦ Special Topics ¦ Teaching ¦ About ...
animaldiversity.ummz.umich.edu/site/accounts/informatio... animaldiversity.ummz.umich.edu/site/accounts/information/Cephalochordata.html
Unit: Chordata introduction ... 3 Subphylum Cephalochordata ... DORSAL NERVE CORD...
orion1.paisley.ac.uk/courses/Tatner/biomedia/units/chor... orion1.paisley.ac.uk/courses/Tatner/biomedia/units/chor3.htm
The Cephalochordata ... The Cephalochordata are a small subphylum (about 28 species) of of small, 5 to 10 centimetres long, but fascinating animals. visually they look like simplified fishes, and they are quite capable of swimming short distances.
www.earthlife.net/inverts/cephalochordata.html www.earthlife.net/inverts/cephalochordata.html