厦门大学：《海洋浮游生物学》课程教学资源（课件讲稿）第05章 腔肠动物

Chapter 5 Coelenterata 浮游水母类的一般形态、分类、 生物学与经济意义

Chapter 5 Coelenterata 浮游水母类的一般形态、分类、 生物学与经济意义

General features two primary lays: outer ectoderm and inner endoderm radial symmetry Class Hydromedusae Class Scyphomedusae

General features two primary lays: outer ectoderm and inner endoderm radial symmetry Class Hydromedusae Class Scyphomedusae

§5.1 Morphology Hydromedusae

§5.1 Morphology Hydromedusae

External features Form：polypoid and medusoid Morphology – umbrella: exumbrella and subumbrella Velum and pseudovelum Manubrium and mouth lips Tenacle: marginal and oral tentacles Nematocyst： – morphology: operculum, capsule and thread – classification

External features Form：polypoid and medusoid Morphology – umbrella: exumbrella and subumbrella Velum and pseudovelum Manubrium and mouth lips Tenacle: marginal and oral tentacles Nematocyst： – morphology: operculum, capsule and thread – classification

Internal features Gastrovascular System： gastrovascular-cavity Muscular System：radial and circular fibers Nervous and Sensory Cell： – nerve net – ganglion cell – neurosecretory cell

Internal features Gastrovascular System： gastrovascular-cavity Muscular System：radial and circular fibers Nervous and Sensory Cell： – nerve net – ganglion cell – neurosecretory cell

√ Sensory Organ – pigment cell – statocyst: – open marginal vesicle – closed marginal vesicle – free marginal sensoty club – enclosed marginal sensoty club Reproduction： – dioecious，gonads situated on the radial canals or inside stomach

√ Sensory Organ – pigment cell – statocyst: – open marginal vesicle – closed marginal vesicle – free marginal sensoty club – enclosed marginal sensoty club Reproduction： – dioecious，gonads situated on the radial canals or inside stomach

§5.2 Class Hydromedusae

§5.2 Class Hydromedusae

Hydromedusae >2000 species，6 orders： – velum – presence or absence ocelli and statocysts – position of gonads – type of life cycle

Hydromedusae >2000 species，6 orders： – velum – presence or absence ocelli and statocysts – position of gonads – type of life cycle

(一) Order Anthomedusae 本目有22科，介绍常见4个科。 – 1、Family Tubulariidae • Euphysora – 2、Family Bougainvilliidae • Koellikerina – 3、Fmaily Velellidae：one genus，one species – 4、Family Randeidae • Leuckartiara 厦门隔膜水母

(一) Order Anthomedusae 本目有22科，介绍常见4个科。 – 1、Family Tubulariidae • Euphysora – 2、Family Bougainvilliidae • Koellikerina – 3、Fmaily Velellidae：one genus，one species – 4、Family Randeidae • Leuckartiara 厦门隔膜水母

（二） Order Leptomedusae 本目12科，我国记录9科，介绍常见4科。 – 1、Family Campanulariidae: • Phialidium: P. chengshanense • Obelia – 2、Family Eirenidae: • Eirene – 3、Family Eutimidae • Eutima – 4、Family Aequoreidae • Aequorea

（二） Order Leptomedusae 本目12科，我国记录9科，介绍常见4科。 – 1、Family Campanulariidae: • Phialidium: P. chengshanense • Obelia – 2、Family Eirenidae: • Eirene – 3、Family Eutimidae • Eutima – 4、Family Aequoreidae • Aequorea