Cifonauta marine biology image database

Anfioxo - região anterior, vista dorsal

Anfioxo - região anterior, vista dorsal
Anfioxo - região anterior, vista dorsal
The subphylum Cephalochordata (called vernacularly as lancelets) is represented by a small (up to 6 cm long) animals characterized to have the notochord as an axial organ throughout the whole body length. The lancelet body plan is similar to that of fishes and other vertebrates: dorsally-situated neural tube, and ventrally-situated alimentary system sandwiched laterally with myotomes (or myomeres), arranged as a series of segmented muscle blocks on each side. They are exclusively marine, inhabiting intertidal to subtidal sandy bottoms in boreal to tropical waters around the world. Recently, however, the true deep-sea species was firstly described. The adults have at benthic life within the superficial layer of bottom sediment, and are filter-feeders. Adults can also swim, but only rarely and sporadically.
The subphylum Cephalochordata (called vernacularly as lancelets) is represented by a small (up to 6 cm long) animals characterized to have the notochord as an axial organ throughout the whole body length. The lancelet body plan is similar to that of fishes and other vertebrates: dorsally-situated neural tube, and ventrally-situated alimentary system sandwiched laterally with myotomes (or myomeres), arranged as a series of segmented muscle blocks on each side. They are exclusively marine, inhabiting intertidal to subtidal sandy bottoms in boreal to tropical waters around the world. Recently, however, the true deep-sea species was firstly described. The adults have at benthic life within the superficial layer of bottom sediment, and are filter-feeders. Adults can also swim, but only rarely and sporadically.
Size
Taxa: Branchiostoma caribaeum
Experts: Teruaki Nishikawa
Date: July 27, 2007, 4:32 p.m.
Place: Canal de São Sebastião, São Sebastião, SP, Brazil
. Anfioxo - região anterior, vista dorsal. Cifonauta image database. Available at: http://cifonauta.cebimar.usp.br/media/7191/ Accessed: 2019-11-14.
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References

2011 Nishikawa T, Migotto A. Cepholochordata. Biodiversidade e ecossistemas bentônicos marinhos do Litoral Norte de São Paulo, Sudeste do Brasil: 296-299
2011 . Biodiversidade e ecossistemas bentônicos marinhos do Litoral Norte de São Paulo, Sudeste do Brasil. UNICAMP/IB: 573, url:http://www.bibliotecadigital.unicamp.br/document/?code=000812694&opt=1
2004 Nishikawa T. A New Deep-water Lancelet (Cephalochordata) from off Cape Nomamisaki, SW Japan, with a Proposal of the Revised System Recovering the Genus Asymmetron. Zoological Society, 21(11): 1131-1136, url:http://www.bioone.org/doi/full/10.2108/zsj.21.1131