A New Species of Placida (Gastropoda: Sacoglossa) from Southern South America

IF 0.7 4区生物学 Q4 ZOOLOGY

Malacologia Pub Date : 2021-08-10 DOI:10.4002/040.064.0106

Nicolás Cetra, D. E. Gutiérrez Gregoric, Andrea Roche

引用次数: 1

Abstract

ABSTRACT Heterobranch sea slugs exhibit a wide range of body shapes, sizes and color patterns. The genus Placida (Sacoglossa) includes cryptic species, and in 2019 four species were recovered through molecular studies. Specimens of Placida collected in the Argentinian Sea (San Matias Gulf, Patagonia) between 2016 and 2019 are shown to belong to an undescribed species using molecular and morphological evidence. Placida sudamericana n. sp. is described using external, radular, penial stylet and egg mass characters. The specimens were always found associated with the green algae Codium fragile. Placida sudamericana is the only Placida species in the South Atlantic waters of South America and was recorded in a molluscan biodiversity hotspot.

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标题南美南部扁足目一新种(腹足目:舌足目)

摘要异枝海蛞蝓具有多种体型、大小和颜色模式。Placida属（Sacoglossa）包括隐蔽物种，2019年通过分子研究发现了四个物种。根据分子和形态学证据，2016年至2019年间在阿根廷海（巴塔哥尼亚圣马蒂亚斯湾）采集的Placida标本属于一个未描述的物种。南美Placida sudamricana n.sp.利用外部、鳞片、阴茎探针和卵块特征进行描述。这些标本总是被发现与脆弱的绿藻鳕鱼有关。南美Placida sudamricana是南美洲南大西洋水域唯一的Placida物种，被记录在软体动物生物多样性热点地区。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Malacologia 生物-动物学

CiteScore

2.00

自引率

0.00%

发文量

审稿时长

3 months

期刊介绍： Malacologia publishes papers on all groups of the Mollusca. Malacologia specializes in publishing long papers and monographic treatments. Complete data are especially appreciated. Papers must be of interest to an international readership. Papers in systematics, ecology, population ecology, genetics, molecular genetics, evolution and phylogenetic treatments are especially welcomed. Also welcomed are letters to the editor involving papers published or issues of import to science of the day.