两种新的Ancistrosyllis McIntosh, 1878（环节动物：Pilargidae）来自泰国湾，西太平洋。

Two new species of Ancistrosyllis McIntosh, 1878 (Annelida: Pilargidae) from the Gulf of Thailand, Western Pacific.

机构信息

Marine Science Learning Center, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110 Thailand. .

Marine Science Learning Center, Faculty of Science, Prince of Songkla University, Hat Yai, Songkhla 90110 Thailand. Marine Ecosearch Management Co., Ltd., 4/31 Moo 1, Namnoi, Hat Yai, Songkhla 90110, Thailand. .

出版信息

Zootaxa. 2022 Apr 20;5128(2):195-210. doi: 10.11646/zootaxa.5128.2.2.

DOI:10.11646/zootaxa.5128.2.2

PMID:36101178

Abstract

Two new species of Pilargidae, Ancistrosyllis eidimtaiteae sp. nov. and A. suksani sp. nov., are described from the Gulf of Thailand. These Ancistrosyllis are characterized by having a median and two lateral antennae. Ancistrosyllis eidimtaiteae sp. nov. differs from all other species in the group by having brown pigmentation and by having both short antennae and tentacular cirri, first notopodial hooks from chaetiger 3, and a single type of neurochaetae (long non-limbate capillaries with bifid tips). Ancistrosyllis suksani sp. nov. can be distinguished from other species of Ancistrosyllis by the presence of the first notopodial hooks from chaetiger 4 and three types of neurochaetae (short, stout, falcates with a subdistal small guard, short limbates, and long bifid non-limbates). An updated key to the Ancistrosyllis species of this group is also provided.

摘要

两种新的 Pilargidae 物种，即 Eidimtaiteae sp. nov.Ancistrosyllis 和 Suksani sp. nov. Ancistrosyllis，从泰国湾描述。这些 Ancistrosyllis 的特征是具有中央和两个侧天线。Eidimtaiteae sp. nov.Ancistrosyllis 与该组中的所有其他物种不同，具有棕色色素沉着，并且具有短触角和触须触须，第一触角从第 3 体节开始，以及单一类型的神经刺（双叉尖端的长非肢状毛细血管）。Suksani sp. nov.Ancistrosyllis 可以通过第四体节的第一触角从触须开始以及三种类型的神经刺（短、粗壮、带亚末端小保护的镰刀状、短肢状和长双叉非肢状）与其他 Ancistrosyllis 物种区分开来。还提供了该组 Ancistrosyllis 物种的更新关键。