Two new species of the genus Bryocyclops Kiefer, 1927 (Copepoda: Cyclopoida: Cyclopidae) from southern Thailand

Digital Gems > Biodiversity Library of Southeast Asia

Language

English

Creator

Watiroyram, S.

Source Title

The Raffles Bulletin of Zoology

Publication date

2018/03/19

Publisher

Dept. of Zoology, National University of Singapore, Singapore

Page

149–169

Content Type

Journal Article

Object Type

Text

Terms of Use

Open Access

Access Status

Open

Repository

NUS Libraries

Start File Page

149

End File Page

169

Volume

66

Issue

1

Call Number

QL319 NMB

Subject

Cyclopidae -- Thailand -- Classification
Cyclopidae -- Thailand -- Indentification

Keyword

taxonomy
cave
epikarst
stygobiont
Chumphon
Nakhon Sri Thammarat

Abstract

Bryocyclops muscicoloides, new species, and B. trangensis, new species, are described from caves in southern Thailand. They have a morphologic resemblance to B. muscicola (Menzel, 1926), a member of Group II sensu Lindberg (1954) in their armature formulae of Exp-2 P1–P4 (3.3.3.3 and 5.5.5.4 for spines and setae, respectively), intercoxal plates of P1–P4 acute, Enp P4 of female and male with one- and two-segmented, respectively, and urosomites and anal operculum serrated. However, B. muscicoloides, new species, is clearly distinguishable by the absence of inner coxal seta on P1, the absence of blunt setae on Exp-2 P2–P3, the shape of female Enp P4 and the unique transformed spine on the male Enp-2 P3 (the outstretched part tapers distally, and is located above the middle of the spine). Bryocyclops trangensis, new species, is characterised by the armature on Enp-2 P2 and Exp-2 P2–P3, the presence of spiniform processes on the male Enp-1 P4 and the transformed spine on the male Enp-2 P3 (the outstretched part is less-produced, and is located near the tip of the spine).

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