Two remarkable pinworms (Nematoda: Enterobiinae) parasitizing orangutan (Pongo abelii) in the Sumatra (Indonesia) including Lemuricola (Protenterobius) pongoi n.sp.

Abstract

SummaryTwo species of pinworms (Enterobiinae) were collected from fresh faeces of semi-wild orangutans Pongo abelii Lesson living in northern Sumatra (Indonesia). The female of Enterobius (Enterobius) buckleyi Sandosham, 1950 is redescribed. Lemuricola (Protenterobius) pongoi n. sp. is described on the basis of females (no males are available) and distinguished from L. (P.) nycticebi (Baylis, 1928) by cephalic and mouth morphology (head and teeth superstructures), body (9.85 -15.46 mm) and tail (2.34 -2.95 mm) length, smaller eggs (48 -56 x 22 -28 μm), longer vulva distance from anterior extremity (2.05 -3.09 mm) and other features. Characteristic is the total body length/oesophagus length ratio (1 : 15.3 -22.0). Both nematode species were studied using scanning electron microscopy for the first time.

Description of Lemuricola (Lemuricola) pongoi—male (Nematoda: Enterobiinae) parasitising orangutan Pongo abelii

“…Although the male was not found, the species L. (P.) pongoi were assigned by Foitová et al (2008) to the genus Lemuricola Chabaud et Petter, 1959(subgenus Protenterobius Inglis, 1961: Enterobiinae) only preliminary. Chabaud, Brygoo et Petter (1965) distinguish in this genus four subgenera: Lemuricola (Chabaud et Petter, 1959), Ingloxyuris (Chabaud, Peter et Golvan, 1961), Protenterobius Inglis, 1961 andMadoxyuris Chabaud, Brygoo et Petter, 1965.…”

“…These nematodes (one male and five females) were cleared in glycerine (mixture 1:1 with 70% ethanol) and examined under a light microscope equipped with differential interference contrast, digital image analysis system (analySIS FIVE DOCU) and a drawing attachment was used for morphometric analysis. The male specimen was transferred to permanent slide and identify as allotype earlier described taxon L. (P.) pongoi by Foitová et al (2008), females were deposited as reference material of the same species.…”

“…Female (five specimens): Morphology and measurements identical with description by Foitová et al (2008). …”

Enterobius(Enterobius)shriverin. sp. (Nematoda: Oxyuridae: Enterobiinae) fromMacaca fascicularisRaffles, 1821 (Primates: Cercopithecidae: Cercopithecinae) and Three Other Cercopitheciid Primate Species: With Additional Information onEnterobius(Enterobius)macaciYen, 1973

“…vermicularis Linnaeus, 1758; and Enterobius yagoi Sutton, 1979. Hasegawa, Takeo et al (1998 studied both species of pinworm infective to humans and synonymized Enterobius (Enterobius) gregorii Hugot (1983) with E. vermicularis, and the taxonomic status of E. simiae and E. foecundus was questioned by Foitova et al (2008), who considered Enterobius buckleyi to be distinct from E. foecundus and who considered both E. foecundus and E. simiae as species inquirendae.…”

“…The genus currently includes 23 recognized species assigned between 2 subgenera: 11 species in Colobenterobius Quentin et al (1979) and 12 species in Enterobius, all of which infect Old World primates within the Hominidae, Cercopithecidae, and Halobatidae families of the Parvorder Catarrhini (Wahid, 1961;Quentin et al, 1979;Sutton, 1979;Kalia and Gupta, 1982;Hugot, 1983Hugot, , 1987aHugot, , 1987bHugot, , 1995Hugot, , 1999Hugot et al, 1996;Hasegawa et al, 1998Hasegawa et al, , 2002Hasegawa et al, , 2003Hasegawa et al, , 2008Foitova et al, 2008). Congeners currently assigned within the subgenera Colobenterobius include Enterobius colobis Vuylstéke, 1963;Enterobius entellus Hugot, 1987; Enterobius guerezae Hugot, 1987; Enterobius inglisi Wahid, 1961; Enterobius longispiculum Quentin, Betterton and Kreshnasamy, 1979; Enterobius paraguerezae Hugot, 1987; Enterobius pesteri Wahid, 1961;Enterobius presbytis Yen, 1973;Enterobius pygatrichus Hasegawa, Murata, and Asakawa, 2002; Enterobius serratus Hasegawa, Matsuo, and Onuma, 2003;and Enterobius zakiri Siddiqi et Mirza, 1954. Those species assigned to Enterobius (Enterobius) include Enterobius anthropopitheci Gedoelst, 1916;Enterobius bipapillatus Gedoelst, 1916; Enterobius brevicauda Sandosham, 1950; Enterobius buckleyi Sandosham, 1950; Enterobius chabaudi Kalia and Gupta, 1982; Enterobius foecundus (Linstow, 1879); Enterobius lerouxi Sandosham, 1950;Enterobius macaci Yen, 1973; Enterobius pitheci …”