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Table 1 Morphological descriptions of Trichuris campanula and Trichuris serrata

From: Trichuris spp. infecting domestic cats on St. Kitts: identification based on size or vulvar structure?

  T. campanula T. serrata St. Kitts
von Linstow ( 1889 ) Ng and Kelly ( 1975 ) Clarkson and Owen ( 1960 ) von Linstow ( 1879 ) Kelly ( 1973 ) Cameron ( 1937 )
Female 31.5 38 22.5 48 49.5 14.74 25
Length (mm) 23.0* (14–31)
Vulva 2 not very prominent lips Straight; 2 inconspicuous longitudinal lips Prominent spiny structure directed posteriorly Spiny structure directed posteriorly Appendage on posterior lip directed posteriorly Appendage on posterior lip directed posteriorly Appendage on posterior lip directed posteriorly
Eggs (μm) 72 x 36 81-85 x 35-39 63 x 34 56 x 39 54 x 40 60 x 35 60-75 x 30–40 (38 eggs)
80 x 36*
Male 20.5* 36 21.5 40 38 12.75 24 (17–32)
Length (mm)
Spicule 1.5* 2.9 1.5 3.9 3.6 1.2 1.4
(mm) (1.1-1.5)
Other -- No bacillary band -- Bacillary band Bacillary band Bacillary band Bacillary band
Source Domestic cat Domestic cat Domestic cat Domestic cat Domestic cat Ocelot Domestic cat
Brazil Australia Bahamas Brazil Australia Trinidad
Worms used 1 female <36 total 11 females Unknown 6 females 3 females 22 females
1 partial male 6 males 13 males 2 males 12 males
Unknown* 9 cats for eggs
  1. *From Urioste 1923 as described by Clarkson and Owen (1960) and Ng and Kelly (1975).