A new record from East Malaysia: Sphaerolaimus macrocirculus (Nematoda)

N Orliana, Mohd Rosli and Shabdin, Mohd Long and Cheng, Ann Chen (2013) A new record from East Malaysia: Sphaerolaimus macrocirculus (Nematoda). Borneo Journal of Resource Science and Technology, 2 (2). pp. 12-18. ISSN 229-9769

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Official URL: http://www.researchgate.net/publication/236872215_...

Abstract

A new record of Sphaerolaimus macrocirculus (Filipjev 1918) in East Malaysian coastal water was described. The species was isolated from the muddy area of Muara Tebas, Sarawak, Malaysia. A total of 47 species of Sphaerolaimus have been reported worldwide. Samples of Sphaerolaimus macrocirculus were previously recorded in the sublittoral mud area of temperate country. S. macrocirculus possesses a stout body (1.1 - 1.6mm; De Man ratios: a (body length/body width) = 16.8–27.5; b (body length/oesophagus length) = 2.3–4.3;c (body length/tail length) = 5.6–8.6). The circular amphid is very clear and situated at the base of the cephalic capsule. In male, the amphid ranged from 11.3-14.3 μm in diameter (mean = 12.7 ± 1.3) and 0.4 c .d.(corresponding diameter). In female, the amphid ranged from 7.2–9.4 μm in diameter (mean 7.8 ± 0.9) and 0.2 c.d. The species is characterised by the presence of eight groups of subcephalic setae at the head region and three longer terminal setae.

Item Type: Article
Uncontrolled Keywords: East Malaysia, Sphaerolaimus , Nematoda , unimas, university, universiti, Borneo, Malaysia, Sarawak, Kuching, Samarahan, ipta, education , research, Universiti Malaysia Sarawak
Subjects: G Geography. Anthropology. Recreation > GB Physical geography
Q Science > Q Science (General)
Divisions: Academic Faculties, Institutes and Centres > Faculty of Resource Science and Technology
Faculties, Institutes, Centres > Faculty of Resource Science and Technology
Depositing User: Karen Kornalius
Date Deposited: 24 Jun 2015 02:28
Last Modified: 24 Jun 2015 02:28
URI: http://ir.unimas.my/id/eprint/7920

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