湛江湾和平水母属2新种（软水母亚纲，锥螅水母目，和平水母科）

张才学; 黄加祺; 孙省利; 赵子科; 刘耀谦

doi:10.3969/j.issn.0253-4193.2019.12.016

湛江湾和平水母属2新种（软水母亚纲，锥螅水母目，和平水母科）

doi: 10.3969/j.issn.0253-4193.2019.12.016

1.
广东海洋大学海洋资源与环境监测中心，广东湛江 524088
2.
厦门大学海洋与地球学院，福建厦门 361102

基金项目: 国家海洋局海洋公益性科研专项（No. 201505027）。

详细信息

作者简介:
张才学(1963—)，男，广东省阳春市人，副教授，主要从事海洋生态和海洋环境的教学与研究工作。E-mail：gdzhangcx@126.com

中图分类号: Q959
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- 被引次数: 0
出版历程
- 收稿日期: 2019-01-30
- 修回日期: 2019-06-11
- 网络出版日期: 2021-04-21
- 刊出日期: 2019-12-25

Two new species of Eirene (Leptomedusae, Conica, Eirenidae) from the Zhanjiang Bay of Guangdong, China

1.
Monitoring Center of Ocean Resource and Environment, Guangdong Ocean University, Zhanjiang 524088, China
2.
College of Ocean and Earth Sciences, Xiamen University, Xiamen 361102, China

摘要

摘要: 采自广东湛江湾海域软水母亚纲(Leptomedusae Claus,1877)、锥螅水母目(Conica Broch，1916)、和平水母科(Eirenidae Haeckel, 1879)、和平水母属(Eirene Eschscholtz，1829) 2新种，即大腺和平水母新种(E. macrogonia Huang, Sun et Liu，sp. nov.)和湛江和平水母新种(E. zhanjiangensis Huang, Zhang et Zao, sp. nov.)。其鉴别特征如下：(1)大腺和平水母，新种；伞扁于半球形，胶质中等厚；胃柄基部塔状，胃柄较长，伸出伞腔口外；垂管长度短于口唇，4个发达口唇边缘呈齿状皱褶；生殖腺发达波状弯曲，着生于辐管下伞部，从胃柄基部延伸到伞缘外；19～24条缘触手，5～8个缘疣，触手基部呈球状，无排泄乳突；每2条触手间或触手和缘疣间有1个平衡囊，每个平衡囊有1～2个平衡石；4条辐管，1条环管。(2)湛江和平水母，新种；伞半球形，胶质厚；胃柄基部呈塔形，末端变窄；垂管较长，约等于口唇长度，口唇边缘有齿状皱褶；生殖腺带状，从胃柄基部延伸至近伞缘；缘触手多，70～125条，触手基球有排泄乳突；平衡囊数目约为触手数的1/2；4条辐管，1条环管。
- 水螅水母纲 /
- 和平水母属 /
- 新种 /
- 湛江湾
Abstract: The samples of Eirene were collected from the Zhanjiang Bay of Guangdong at 21°04′40.52″N 110°30′2.87″E during May, 2010 and May 2016. Two new species of Eirene i.e. E. macrogonia Huang, Sun et Liu , sp. nov. and E. zhanjiangensis Huang, Zhang et Zao sp. nov. are decribed. All type specimens are deposited in College of Ocean and Earth Sciences, Xiamen University. The specific diagnoses of two new species are as follow: Eirene macrogonia Huang, Sun et Liu sp. nov. Unbrella nearly hemispherical; gastric peduncle long, exceeding beyond the velar opening, the base pyramidal shaped; with 4 radial canals and a ring canal; with 4 large sinuous gonads, from near the base of the peduncle to beyond the umbrella margin along the four radial canals with 19−24 marginal tentacles of the same size, its bulbs without excretory papillae, with 5−8 rudumentary bulbs. Eirene zhanjiangensis Huang, Zhang et Zao, sp. nov.Umbrella hemispherical, jelly think; the base of gastric peduncle pyramidal and the end narrow; lenth of manubrium near equal to the one of oral lips; 4 gonads banding shaped, extending from the base of peduncle to near umbrella margin along the 4 radial canals; with 4 radial canals and a ring canal; with 70−125 marginal tentacles of the same size, its bulbs with excretory papillae; the number of statocysts about 1/2 of one of tentacles.
- Hydromedusae /
- Eirene /
- new species /
- Zhanjiang Bay

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图 1 大腺和平水母，新种

a.口面观，b.部分伞缘放大，c.口面观照片，d.部份伞缘放大照片

Fig. 1 Fig. Eirene macrogonia Huang, Sun et Liu, sp. nov. new species

a. Oval view，b. Englargement of umbrella margin，c. Oval view photo，d. Enlarge photo of umbrella margin

下载: 全尺寸图片幻灯片

图 2 湛江和平水母，新种

a.口面观，b.部分伞缘放大，c.口面观照片，d.部分伞缘照片

Fig. 2 Fig.E. zhanjiangensis Huang, Zhang, Zao et Chen, sp. nov. new species

a. Oval view，b. Englargement of umbrella margin，c. Oval view photo，d. Photo of Umbrella margin

下载: 全尺寸图片幻灯片

表 1 和平水母属新种和相似种检索表

Tab. 1 The key to the new species and simillar species in the genus Eirene

1. 缘触手不同大小，60条或更多条触手大小相间排列………………………….………………………绿色和平水母[Eirene viridula (Péron & Lesueur, 1810)]
缘触手大小相同…………………………………………………………………………………………………………………………………………2
2. 胃柄末端有4个间辐位的突起……………………………………………………………………………………………………………………………………3
胃柄末端无间辐位的突起………………………………………………………………………………………………………………………………………4
3. 缘触手105（45～159）条；口唇长于垂管，口唇边缘高度皱褶，呈锯齿状；每2条触手间有2个平衡囊；触手基球具排泄乳突………………………………………　……………………………………………………………………………………………………拟柄突和平水母（E. lacteoides Kubota & Horita, 1992）
缘触手24～68条；口唇短于垂管，口唇简单，弯曲；每2条触手间1个平衡囊，少数2个；触手基球无排泄乳突………………………………………　……………………………………………………………………………………………………………………………柄突和平水母[E. lactea (Mayer, 1990)]
4. 口唇短于垂管，口唇边缘略呈锯齿状；生殖腺近长形，在辐管中部扭曲；每2条触手间通常有4～6个缘疣和6个平衡囊………………………　…………………………………………………………………………………………………………小手和平水母（E. parvitentaculata Bouillon, 1984）
口唇长于或等于垂管……………………………………………………………………………………………………………………………………………5
5. 生殖腺上有拟螅体子茎芽，生殖腺延长; 缘触手14～25条，有排泄乳突；触手间有3～5个缘疣和4～6个平衡囊……………………………………………　………………………………………………………………………………………………………………埃利和平水母（E. elliceana Agassiz & Mayer, 1902）
生殖腺上无拟螅体子茎芽………………………………………………………………………………………………………………………………………6
6.触手基球具排泄乳突，触手多，70～125条；平衡囊约为触手数的1/2；生殖腺带状……………………………………………………………………　……………………………………………………………………………………湛江和平水母，新种（E. zhanjiangensis Huang, Zhang et Zao, sp. nov.）
触手基球无排泄乳突…………………………………………………………………………………………………………………………………………………………7
7. 口唇约与垂管等长；生殖腺棍棒状；无缘疣………………………………………………………………………………………………………　…………………………………………………………………………………………………无疣和平水母（E. averuciformis Xu, Huang & Du, 2010）
口唇长于垂管；生殖腺发达，弯曲，从胃柄基部延伸到伞缘；缘疣少疣………………………………………………………………………………………　…………………………………………………………………………………………大腺和平水母新种（E. macrogonia Huang, Sun et Liu, sp. nov.）

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