Cornurella fonsecae

Cornurella fonsecae	Contents	Rev: 09/22/2022
	Classification	Biology and Ecology
	Morphology and Anatomy	Life Cycle
Return to Cornurella 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
Cornurella fonsecae Da Silva, Da Silva, Esteves & Decraemer, 2017

Type species of the genus

    Synonyms:

Morphology and Anatomy:

lateral field differentiated by an additional set of three longitudinal rows of setae
well-developed cephalic capsule with horn-like ornamentationnear the base
amphideal fovea closed loop-shaped, situated on a cuticular plate that extends nearly over the whole length of the helmet; fovea narrower in females
precloacal region with intermingled setae and papillae.

Ref: Da Silva et al., 2017

Females:

didelphic amphidelphic, ovaries reflexed and on left of intestine.
No spermathecae nor sperm observed.
Vagina vera sclerotized.
Tail conical.

Cornurella fonsecae: Male
A:Whole body; B: Head region; C: Posterior body with spicules; D: amphid fovea and horn-like projections; E: Tail; F: Cuticle at mid body.
from Da Silva et al., 2017

Males:

monorchic, with anterior outstretched testis left of the intestine.
twelve precloacal setae and ten papillae anterior to the cloacal opening, intermigled
Spicules extremely long, about 7 cloacal body diam long), filiform, only slightly curved
gubernaculum without dorsal apophyses.

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

Distribution:

Type species, C. fonsecae, described from Campos Basin (Rio de Janeiro, Brazil), station 11 on the continental slope, water depth: 25 m, 2 cm surface layer of sediment.

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:

Da Silva, M.C., Da Silva, N.R.R., Esteves, A.M., Decraemer, W. 2017. A new genus Cornurella gen. n. (Nematoda, Desmodoridae, Filipjev, 1922) from Campos Basin, Rio de Janeiro, Brazil. Marine Biodiversity DOI 10.1007/s12526-017-0696-1