Croconema cinctum

Croconema cinctum	Contents	Rev: 10/31/2024
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Croconema Menu		Ecosystem Functions and Services
	Distribution	Management
Return to Desmodoridae Menu	Feeding	References
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Classification:

Chromadorea
Chromadoria
Desmodorida: Desmodorina
Deamodoroidea
Desmodoridae: Desmodorinae
Croconema cinctum Cobb, 1920

    Synonyms:

Desmodora (Croconema) cincta Gerlach, 1963

Morphology and Anatomy:

Cuticle coarsely striated
Head capsule well-developed and extended longitudinally. Inner labial sensilla papilliform; outer labial sensilla minute and setiform; four cephalic setiform sensilla; three circlets of eight subcephalic setae (5-10 um long) on the head capsule: the fi rst circle very close to cephalic sensilla, the second circle posterior to the amphidial fovea and the third circle close to the posterior border of the capsule.
Amphidial fovea cryptospiral, relatively small and located on the head capsule.
Eight longitudinal rows of short somatic setae running along body length, at the posterior region continuing as six rows.
Buccal cavity narrow, elongate, with one dorsal tooth and two minute ventrosublateral teeth.
Pharynx muscular with posterior bulb.
Cardia extended.
Tail non-striated in the last third, conspicuously punctuated with a with few scattered subterminal setae.

Ref: Armenteros et al., 2014

Females:

Didelphic, ovaries antidromously reflexed, anterior genital branch to the left, posterior to the right
Vulva a transversal slit.

Males:

Monorchic, anterior testis to the right of the intestine.
Spicule curved, slightly cephalated
Gubernaculum a narrow cuticularized rod.
Two ventromedian precloacal supplements formed by the enlargement/protrusion of three consecutive annuli (mid one larger than others).

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

Distribution:

Collected from the Punta Frances coral reef (Cuba).

Life Cycle:

Ecophysiological Parameters:

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

Ecosystem Functions and Services:

Armenteros, M., Ruiz-Abierno, A., Decraemer, W. 2014. Revision of Desmodorinae and Spiriniinae (Nematoda: Desmodoridae) with redescription of eight known species. European J. Taxonomy 96:1-32.

Cobb N.A. 1920. IX. One hundred new nemas. In: Cobb N.A. Contributions to a Science of Nematology: 217-234. Williams & Wilkins Co., Baltimore. http://dx.doi.org/10.5962/bhl.title.20608

Gerlach S.A. 1963. Freilebende Meeresnematoden von den Malediven II. Kieler Meeresforschungen Sonderheft 19: 67-113.