Globocephaloides macropodis

Globocephalodes macropodis	Contents	Rev: 05/12/2026
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Type species of the genus

Synonyms:

Globocephaloides wallabiae Johnston and Mawson, 1939

Globocephalouies affinis Johnston and Mawson, 1939

Globocephaloides thetidis Johnston and Mawson, 1939

Small nematodes, coiled ventrally in loose, flat spiral.
Body without longitudinal ridges or alae, covered by numerous fine transverse striations.
Mouth opening oval, slit-like when closed, dorsoventrally elongate. Lips absent; mouth surrounded by 2 lateral, jaw-like structures, joined at dorsal and ventral margins. Each jaw with 3 finger-like depressions of cuticle. Jaws supported posteriorly by U-shaped buttress-like elevations of cuticle
Buccal capsule large, urceolate, walls thick at base, thinning markedly anteriorly; walls also thin dorsally and ven trally.
Single pointed, elongate dorsal tooth and 2 small blunt teeth arise from esophagus. Dorsal oesophageal gland opens through apex of dorsal tooth.
Esophagus elongate, clavate, slightly wider at posterior end; nerve ring encircles esophagus near anterior; excretory pore posterior to nerve ring, leading to elongate excretory gland. Deirid small, bilobed, lobes unequal, at level of excretory pore

	Males: Lateral lobes of bursa enlarged, fused with ventral lobes. Dorsal lobe very small, separated from lateral lobes. Ventroventral and ventrolateral rays separated, slender, each reaching margin of bursa.Two dome-shaped bullae overlie origins of lateral and ventral rays. Genital cone prominent. Anterior lip of cone forms elongate, conical projection between bullae. Posterior lip gives rise to elongate, distally bifid projection. Spicules short, complex, heavily sclerotized, yellow, with numer- ous ridges on spicule bodies. Spicules bifid distally. Lateral branches of spicules with prominent notch, longer than medial branches, tips with ventrally flexed knob bearing large beak-like projection Gubernaculum absent. Females: Tail short conical, usually with slight constriction before tip. Vulva in posterior half of body. Vulva1 lips prominent, lips approximately equal. Ovejectors paired; vaginae uterinae short. Uteri large, sac-like, opposed Egg thin-shelled, ellipsoidal. Ref: Beveridge, 1979
Globocephaloides macropodis 1, cephalic end male, lateral view; 3, transverse striations on body; 4, cephalic end, en face view; 5, posterior end, female, lateral view; 6, anterior end male, lateral view; 7, deirid; 11, bursa, flattened, apical view Scale lines: Figs 1, 4, 0.01 mm; Figs 3, 5, 6, 0.1 mm. Drawings from Beveridge, 1979

Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click: