NEW RECORD OF Synhimantus (Dispharynx) nasuta (RUDOLPHI, 1819) CHABAUD, 1975 (NEMATODA, ACUARIOIDEA) IN THE YELLOW VENTED BULBUL (Pycnonotus goivier) FROM EAST KALIMANTAN, INDONESIA

The occurrence of S. (D) nasuta is recorded for the first time in Indonesia from the Yellow-vented Bulbul, (Pycnonotidae) Pycnonotus goiavier. S. (D) nasuta occurs in many avian families (Baylis 1939; Yamaguti 1961; Soulsby 1982; Foster et al. 2002; Rodrigues et al. 2003; Zhang et al. 2004). Thus, the occurence of this parasite on the family Pycnonotidae is a new host record. Zhang et al. (2004) treated Dispharynx as a subgenus of Synhimantus Railliet, Henry and Sisoff, 1912. They stated that when Railliet et al. (1912) revised the genus Acuaria Bremser, 1811, her erected the sub-genus Dispharynx, with A. (D.) nasuta as the type species. Skrjabin et al. (1965) raised Dispharynx to generic rank. Chabaud (1975) considered Dispharynx a subgenus of Synhimantus. Mawson (1982) accepted Chabaud’s subgeneric designation, but on the other hand, Gogoi and Sarmah (1988) considered Dispharynx a distinct genus. In this paper we treated Dispharynx as a subgenus of Synhimantus. The bird was collected from East Kalimantan, Indonesia (PT. INHUTANI, Sei Merdeka Unit, Km 29, 1°02’S, 116°20’E) in November, 2005. The nematodes were removed from the oesophagial lining, comprising 127 females and 133 males. Examination was carried out by two methods; using light microscope and scanning electron microscope (SEM). For light microscopy study, the specimens were cleared in lactophenol. Drawings were made with a camera