Three New Species of Brevitobrilus Tsalolikhin, 1981 (Nematoda) with a Discussion on Relationships within the Genus

  • Tahseen Q
  • Liang A
  • Rana D
 et al. 
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Three new species of the genus Brevitobrius Tsalolikhin, 1981 are described. Brevitobrilus glandulatus n. sp. is characterized by conspicuous sphincter between pars dilatata and uterus; two pairs of vaginal glands; spicules having elliptical capitula with small proximal stiffening piece; proximally-arcuate gubernaculum; S3 and S4 smaller than other supplements; S6 out of spicular range and 57-60 micropapillae. Brevitobrilus dimorphicus n. sp. is diagnosed by sexual dimorphism in labial sensilla and amphids; thick-walled rectum with a diverticulum protruding into intestinal lumen and males with boat-shaped spicules and S6 occasionally slightly smaller than other supplements. Brevitobrilus allahabadensis n. sp. possesses large amphids of 28-33% of corresponding labial diameter in both sexes; vagina and uterus with muscular, plicate walls; well developed sphincter between vas deferens and ejaculatory duct; capitulate spicules with sloping ventral and angular dorsal walls; S3, S4 and S6 smaller than other supplements, S6 close to cloaca and 28-37 micropapillae. The relationships of the species of genus Brevitobrilus have been assessed using morphological characters subjected to parsimony and a non cladistic key to identification of species is given.

Author-supplied keywords

  • B. allahabadensis n. sp.
  • B. dimorphicus n. sp.
  • Brevitobrilus glandulatus n. sp.
  • description
  • morphology
  • nematode

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  • PUI: 358681375
  • ISSN: 0022-300X
  • SCOPUS: 2-s2.0-77951213085
  • SGR: 77951213085


  • Q Tahseen

  • Ai-Ping Liang

  • Deep Jyoti Singh Rana

  • Rahmat Khan

  • Shikha Ahlawat

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