A general term for crustaceans classified under the order Stomatopoda of the class Malacostraca. Commonly known as the mantis shrimp (→ Mantis shrimp). Its most distinctive feature is that the second thoracic leg is a prehensile like a praying mantis's claws. There are two types of mantis shrimp: the mantis shrimp type, which has a row of sharp spines on its prehensile leg (which pinches prey) and the mantis shrimp type, which has no spines but has a round bulge at the base (which strikes prey). The carapace is small and only covers the first four thoracic segments. The exposed thoracic segments 5 to 8 are called free thoracic segments and at first glance look like the abdomen. The thoracic segments 6 to 8 each have a pair of bifurcated thoracic legs. They are all marine species, found from the coast to the deep sea, with about 2,000 known species in 17 families. Many species are edible. (→ Arthropods, Malacostraca) Source: Encyclopaedia Britannica Concise Encyclopedia About Encyclopaedia Britannica Concise Encyclopedia Information |
軟甲綱口脚目 Stomatopodaとしてまとめられる甲殻類の総称。通称シャコ類(→シャコ)。最も著しい特徴は,第2胸脚がカマキリの鋏のような捕脚となっていることである。捕脚に鋭いとげが並んでいるシャコ型(獲物を挟んで捕える)と,とげがない代わりに基部に丸いふくらみがあるフトユビシャコ型(獲物を打って捕える)がある。甲は小さく,胸部の第4節までしか覆っていない。露出した第5~8胸節は自由胸節と呼ばれ,一見腹部のようにみえる。第6~8胸節には二叉した胸脚が 1対ずつある。海産種のみで,磯から深海まで分布し,17科約 2000種が知られている。食用とされる種も多い。(→節足動物,軟甲類)
出典 ブリタニカ国際大百科事典 小項目事典ブリタニカ国際大百科事典 小項目事典について 情報 |
<<: Photosphere (English spelling)
Okinawa name for the sea bream, a marine fish of t...
Edo period , Owari Domain As a branch of Owari Pr...
...refers to the mythology of the Latvians, Lithu...
…In 1596 (Keicho 1), he completed the Noh kata-se...
…During that time, he made proposals on finance a...
Indonesian politician. Born in East Java on June ...
(Kagoshima Prefecture) A tourist attraction design...
Water transportation. See the entry for the charac...
…Novobiocin acts on bacterial DNA gyrase (an enzy...
…Using Picard's theorem, we can see that all ...
…The types of substances required vary from speci...
…He was born in Valabhi, on the Karthiawar Penins...
...There is also the Ichicho Ichikan, which perfo...
A notebook for recording and storing newspaper an...
…Mendel's most important contribution was his...