Synonchiella hopperi

Synonchiella hopperi	Contents	Rev: 09/06/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Synonchiella Menu		Biology and Ecology
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Classification:

Chromadorea
Chromadoria
Chromadorida
Selachinematidae: Selachinematinae
Synonchiella hopperi Ott, 1972

Synonyms:

Morphology and Anatomy:

Synonchiella hopperi is characterized by:

Body elongate cylindrical.
Cuticle finely annulated and finely punctate with punctations arranged in transverse rows.
Body pores arranged in sparse, irregular, longitudinal rows.
Mouth broadly opened, surrounded by six, trapezioid lips which have anterior margins with short, longitudinal, fringe-like striation.
Small inner labial setae present at base of each lip.
Six longer outer labial and four shorter cephalic sensilla j in single circle.
Amphidial fovea large, round, multispiral, with 2.5-3 coils.
Pharyngostom armed with three equal mandibles. Anterior branch of each mandible with five hooks or claws directed internally;
Anterior pharyngeal with complex musculature around mandibles and distinctly set off from posterior tissue.
Pharynx muscular, cylindroid, gradually widening towards cardia.
Tail elongate-conical, uniformly tapering portion distinct from slender cylindrical posterior part with terminal swelling and spinneret. One short subterminal seta and few subventral short setae present.

	Females: Didelphic-amphidelphic, ovaries antidromously reflexed; anterior ovary to right and posterior ovary to left of midgut. Ref: Tchesunov and Okhlopkov, 2006

Males: Diorchic, with opposed testes. Anterior testis to left and posterior testis ventrally of midgut; Fifteen to 16 equal, supplements, arranged in precloacal midventral row. Each supplement consisting of cup-shaped body and cap. Males with single spicule, arcuate, distally pointed, proximally slightly narrowed. Gubernaculum sphenoid, situated along distal fourth of spicule.
Reported median body size for this species (Length mm; width micrometers; weight micrograms) - Click:

Distribution:

Predatory marine nematodes. Recorded from coastal waters of South Carolina, USA

Life Cycle:

Ecophysiological Parameters:

For Ecophysiological Parameters for this species, click	If species level data are not available, click for genus level parameters

References:

Ott, J.A. 1972. Twelve new species of nematodes from an intertidal sandflat in North Carolina. Internationale Revue der Gesamten Hydrobiologie 57, 463-496.

Tchesunov, A.V. and Okhlopkov, J.R. 2006. On some selachinematid nematodes (Chromadorida: Selachinematidae) deposited in the collection of the Smithsonian National Museum of Natural History. Nematology 8:21-24.