Ancylostoma ceylanicum1 06.jpg

Taxonomy: s.f. Ancylostomatoidea
Animal: Ancylostoma ceylanicum1 06.jpg
Sites: Gut
Comment:
Ancylostoma ceylanicum anterior end of female - SEM. It can be differentiated from A. braziliense (A.b) as the body is a little thicker and it has a pair of small inner ventral teeth as well as a pair of large ventral teeth while A.b has a pair of small more internal, median teeth arising at the base of the big ventral teeth, ratio of width of base of teeth 1:7 (range 1:3.8 - 8.6) cf A.b- 1:10.1 - 12.4. (A. duodenale worms have 2 pairs of ventral teeth with ratio 1:1.3-1.7 and a pair of accessory teeth). A. ceylanicum is found in SE Asia, Africa and the normal definitive host is dogs or cats but it can also infect humans maturing in the intestine and causing some clinical symptoms. This infection occurred in a traveller returning to Australia. (EM by Deb Stenzel). - see Biocca E. 1951 J. Helminthol. 25: 1-10, Yoshida et al 1968 (details in Bibliography)

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