Brevimulticaecum

Contents

Rev 01/15/2024

  Classification Biology and Ecology
Morphology and Anatomy Life Cycle
Return to Brevimulticaecum menu Ecosystem Functions and Services
Distribution Management
Return to Heterocheilidae Menu Feeding  References
    Go to Nemaplex Main Menu   Go to Dictionary of Terminology

Classification

Chromadorea

       Spiruria

         Ascaridida

          Ascaridoidea

               Heterocheilidae

                          Brevimulticaecum Mozgovoy (in Skrjabin et al., 1951)

Type species of the genus: Brevimulticaecum stekhoveni (Baylis, 1937), Mozgovoy (in Skrjabin et al., 1951)

 

Back to Top

Morphology and Anatomy:

Sprent (1979) considered the key features for the determination of species of Brevimulticaecum to be spicule length as a percentage of body length, the pattern of cuticular striation in the anterior region  the distance of the vulva from the anterior extremity , the host species and the distribution (Masova et al., 2010).

 
  • Medium-sized, whitish nematodes with 3 lips
  • Males not markedly smaller than females.
  • Dorsal lip with two elliptical double papillae; each of two subventral lips with one elliptical single papilla and amphid, same width as length, rounded margins and narrow postlabial grooves.
  • Lower part of each lip with conspicuous cuticular striations; anterior part slightly striated. labial pulp of each lip with two main branches ending anteriorly in short round cauliflower-like projections.
  • Regions of denticles on borders of lips absent (distinguishing the genus from Multicaecum).
  • Presence or absnce of  lateral cuticular alae reaching back to just posterior to esophagus.
  • Excretory pore at level or slightly posterior to nerve ring.
  • Esophagus straight, terminating in ventriculus with two anterior and three short, knob-like posterior appendices.
  • Intestinal caecum approximately half length of esophagus.

Ref: Masova et al., 2010
   
Body size range for the species of this genus in the database - Click:
Back to Top

Distribution

Parasites of crocodilians (crocodiles, acymans, alligators, caimans).

Back to Top

Economic Importance:

Intestinal parasites of fish.

Back to Top

Hosts:

 

 

Back to Top

Feeding

Intestinal parasites of crocodilians.

 
Back to Top

Life Cycle

For Ecophysiological Parameters for this genus, click 
Back to Top

Damage:

 

 

Back to Top

Management:

 
Back to Top

References:

Masova, S., Moravec, F., Barus, V., Seifertova, M. 2020. Redescription, systematic status and molecular characterisation of Multicaecum heterotis Petter, Vassiliades et Marchand, 1979 (Nematoda: Heterocheilidae), an intestinal parasite of Heterotis niloticus (Osteichthyes: Arapaimidae) in Africa. Folia Parasitologica 57:280-288

Morgovoy, A.A. 1953: [Ascaridata of animals and Man and the Diseases caused by them. Essentials of Nematodology 2.] akademiya Nauk sssr, Moscow, 616 pp. (in Russian)

Skrjabin, K.I., Shikhobalova, N.P., Mozgovoyk.i., A.A. 1951.  [Key to Parasitic Nematodes. Vol. ii, Oxyurata and Ascaridata.] Akademiya Nauk SSSR Publishers, Moscow, 631 pp. (in Russian)

Sprent, J.F.A. 1979: Ascaridoid nematodes of amphibians and reptiles: Multicaecum and Brevimulticaecum. J. Helminthol. 53: 91�116.

 

Back to Top/a>

Return to Heterocheilidae Menu

Want more information about nematodes? Go to Nemaplex Main Menu.