狹甲組 的英文怎麼說
中文拼音 [xiájiǎzǔ]
狹甲組
英文
leptostraca-
The cladogram shows that the opatrini of 14genera in china is not a monophyly, mesomorphus is a monophyly, and another monophyly is composed of others 13 genera. and according to the faunal analysis, we can conclude that opatrini in china is mainly distributed in palaearetic region, hi which the number of genera makes up 59. 1 % ( 13 genera ) of the total, including 50 % ( 11 genera ) in middle asian subreahn, which combined with distribution of this tribe in the world, so it is proposed that the middle asian subrealm can be viewed as the core of distribution. most of genera distributed in limited area, only gonocephalum distributed in extensive area
根據已知種類，對世界和中國范圍內土甲種類的區系組成和地理分佈特徵進行了首次分析，結論為：世界土甲族以西半球最豐富，古北區最多，其次為非洲區；我國土甲的主體成分是古北區種類，共有12屬（ 54 . 5 ） ，其中11屬（ 50 ）分佈於中亞地區，據此認為我國土甲在區系組成上以中亞成分為主；我國除土甲屬gonocephalum廣泛分佈外，絕大多數屬均為狹域分佈；蒙新區和華南區的特有屬較多，說明中國土甲族具有中亞起源和熱帶起源兩種可能；物種數量分佈以蒙新區最多，華南區其次，呈現兩極分佈格局。
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