Chapter 7 Planktonic Crustacea Part VII Sergestidae Department of Oceanography References ?郑重, 1953. 厦门海洋浮游甲壳类的研究(一): 毛虾. 厦门大学学报 ?郑重, 1954. 厦门海洋浮游甲壳类的研究(二): 莹虾. 厦门大学学报 ?刘瑞玉, 1956. 黄海和渤海的毛虾. 动物学报 ?刘蝉馨, 张宗道, 1981. 中国毛虾的幼体发育. 动物学报 Crustacea, Malacostraca, Decapoda，Natantia, Penaeidea, Sergestidae Features： ? body laterally compressed, rostrum short； ? P 1-3 modified as maxillipeds； ? P 4-5 absent or rudimentary ? indirectly development 1 General Morphology 1.1 Body form ? cephalothorax ? abdomen, 6th abdominal somite with sexual dimorphism 1.2 Appendages ?（1）A 1 , statocyst , ♂clasping organ ?（2）A 2 ?（3）M；M 1 ；M 2 ；Mp ?（4）P 1-8 ?（5）Pl 1-5 ，sexual dimorphism ?（6）Up 1.3 Eyes, compound eyes with eyestalk A. Indicus A. erythraeus A. serrulatus A. japonicus 2 Classification M with or without palp ? 2.1 Subfamily Sergestinae （1）Acetes （2）Sergestes ? 2.2 Subfamily Luciferinae （1）Lucifer Acetes Sexual differences of Acetes absent with appendix masculina base of Pl 2 Ri normalwith petasmaPl 1 absentpresent, papilla-likegenital coxae extending to middle of that segment extending to base of 3rd peduncular segment of A 1 scale of A 2 unmodified modified as clasping organ inferior flagellum of A 1 larger with longer ocular stalk smaller with shorter ocular stalk compound eyes largersmallergenital plate longershorterbody length femalemaleCharacters Lucifer Lucifer hanseni L. typus L. intermedius L. hanseni L. penicillifer absentpresent appendix masculina of Pl 1 without petasmawith petasmaprotopodite of P 1 without process with large ventral process telson with very small spine at posterior end only with 2 spinal processes Inferior margin of Ab 6 longershorterbody and head length femalemaleCharacters Sexual differences of Lucifer 3 Biology and Significance ? 3.1 Distribution ? 3.2 Acetes fishery According to FAO statistics(1995), A. chinensis supports the largest single shrimp fishery in the world (409,995t), and the vast majority of world landings are taken in China. Bioluminescence of Lucifer