Comparative analysis of the circulatory system in Amphipoda (Malacostraca, Crustacea)
Comparative analysis of the circulatory system in Amphipoda (Malacostraca, Crustacea)
复制标题
片脚类(软体动物、甲壳动物)循环系统的比较分析
DOI:
10.1111/j.1463-6395.2007.00279.x
复制
发表时间:
2007
期刊:
影响因子:
1.2
通讯作者:
S. Richter
中科院分区:
文献类型:
--
作者:
C. S. Wirkner;S. Richter
We present data on the haemolymph vascular system (HVS) in four representatives of the major amphipod lineages Gammaridea, Hyperiidea and Caprellidea based on corrosion casting and three-dimensional reconstructions of histological semi-thin sections. In all these species the HVS comprises a dorsal pulsatile heart, which is continued in the body axis by the anterior and posterior aortae. The heart is equipped with three pairs of incurrent ostia. The number of cardiac arteries that lead off the heart varies among species: in the studied Gammaridea four pairs occur, in Hyperia galba only the three posterior pairs of cardiac arteries occur, while in Caprella mutica cardiac arteries are absent. In all the studied species the posterior aorta leads as a simple tube into the pleon attached to the dorsal diaphragm. The anterior aorta runs from its origin in the anterior part of the second thoracic segment into the cephalothorax. Both pairs of antennae have an arterial supply off the anterior aorta. An overview of previously studied species including our present findings shows the amphipod HVS to be relatively uniform and the gammarid form is discussed as being closest to the ground pattern of Amphipoda.