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THE TAXONOMICAL OUTLINE OF CHAETOGNATHA
THE TAXONOMICAL OUTLINE OF CHAETOGNATHAopenaire +1 more source
SUPPLEMENTARY NOTES ON THE SYSTEMATICS OF CHAETOGNATHA
SUPPLEMENTARY NOTES ON THE SYSTEMATICS OF CHAETOGNATHAopenaire +1 more source
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2015
AbstractAccording to palaeontological evidence, Chaetognatha (arrow worms), a group of small marine predators that are major components of the zooplankton throughout our world oceans, were already present in the Early Cambrian Chengjang, in the Middle Cambrian Burgess Shale.
Carsten H G Müller +2 more
exaly +2 more sources
AbstractAccording to palaeontological evidence, Chaetognatha (arrow worms), a group of small marine predators that are major components of the zooplankton throughout our world oceans, were already present in the Early Cambrian Chengjang, in the Middle Cambrian Burgess Shale.
Carsten H G Müller +2 more
exaly +2 more sources
2017
This chapter describes the taxonomy of Chaetognatha, a small phylum of exclusively marine organisms with approximately 150 species currently recognized, of which about 70 are pelagic. Chaetognatha are also known as arrow worms because of their shape and quick darting movements in the water.
exaly +7 more sources
This chapter describes the taxonomy of Chaetognatha, a small phylum of exclusively marine organisms with approximately 150 species currently recognized, of which about 70 are pelagic. Chaetognatha are also known as arrow worms because of their shape and quick darting movements in the water.
exaly +7 more sources
Photoreception in Chaetognatha
1984Chaetognaths have a pair of eyes below the epidermis on the dorsal surface of the head; an inverted type in the genus Sagitta and an everted type in the genus Eukrohnia. The inverted type is composed of capsule cells surrounding the external surface, one pigment cell at the center of the eye, photoreceptor cells extending distal processes into ...
T. Goto, M. Yoshida
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Nervous System in Chaetognatha
1987The nervous system of chaetognatha consists of 6 ganglia in the head region, one ventral ganglion in the body, nerves connecting these ganglia and peripheral nerves passing out of these ganglia. The ganglia in the head region are the cerebral ganglion, a pair of vestibular ganglia, a pair of oesophageal ganglia, and a suboesophageal ganglion.
T. Goto, M. Yoshida
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Distribution Patterns In Chaetognatha
1991Abstract Chaetognatha are holoplanktonic animals, except for the genera Spadella, Bathyspadella and Krohnittella. They are found in all oceans and seas, from coast to coast and from the surface to the bottom; they have even invaded estuarine habitats.
A C Pierrot-Bults, V R Nair
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