NEIHPID

Calicophoron papillosum (Näsmark Näsmark) Stiles et Goldberger 1910 Back

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Taxonomy

Platyhelminthes »
       TREMATODA »
              Digenea »
                     Paramphistomidae Fischoeder, 1901 »
                            Paramphistominae Fiscoeder, 1901 »
                                   Calicophoron Nüsmark, 1937 »
                                           Calicophoron papillosum (Stiles et Goldberger 1910), Näsmark 1937

Synonyms

Paramphistomum papillosum Stiles et Goldberger, 1910

Host

Bos (indicus)

Habitat

Rumen

Locality

Dharmanagar (Tripura)

Description

Body elongated, 7.23-9.13 mm in length, 2.93-3.34 mm in width, ratio of body width to body length 1:2.46-1:2.73. Acetabulum sub-terminal, 1.49-1.71 mm in external diameter; ratio to body length 1:5.02-1:5.46; of calicophoron type (sensu Näsmark, 1937) in median sagittal section; units of circular muscles on lateral sides as follows : d.e.c.m. 10-14, d.i.c.m. 30-36, v.e.c.m. 12-15, v.i.c.m. 28-36. m.e.c.m. 3-7. Pharynx 0.58-0.76 mm in length, 0.63-0.76 mm in width; ratio to body length 1:12.0-1:12.46, to diameter of acetabulum 1:2.19-1:2.48; of calicophoron type (sensu Dinnik, 1964) in median sagittal section. Oesophagus 0.49-0.72 mm long, ratio to body length 1:12.68- 1:14.75, no osesophageal bulb or sphincter. Caeca lateral, coiled, reaching middle of acetabulum. Testes lobed, tandem; anterior testis 1.13-1.49 mm in length, 1.44-1.71 mm in width; posterior testis 0.90-1.49 mm in length, 1.58-1.89 mm in width. Seminal vesicle thin walled, pars musculosa moderate, pars prostatica well developed. Ovary 0.27-0.36 mm by 0.31-0.45 mm. Laurer's canal crossing excretory vesicle or duct, opening on dorsal surface posterior to excretory pore. Genital opening posterior to oesophageal bifurcation, terminal genitalium of papillogenitalis type (sensu Eduardo, 1980b) in median sagittal section.

Remarks

C. papillosum has earlier been reported from cattle and buffaloes in Madras and Uttar Pradesh by Gupta (1965b), in Calicut by Gupta and Nakhasi (1977) and from sheep and goat in Himachal Pradesh by Tandon and Sharma (1981).

Citing Eduardo (1983), the specimens of this species were collected by Giles in 1883 from Bos indicus in the Punjab, India. Eduardo also studied the Indian material of this species from Bubalus bubalis. On comparison with those of Gupta and Nakhasi (1977) and Eduardo (1983), the present observations have been found differing in the number of acetabular muscle units, size of different body organs and ratio of pharynx and acetabulum to the body length. However, the major features like the type of pharynx, acetabulum and terminal genitalium tally with the earlier descriptions.

Helminthological collections record

NEHU/Z - TM/8

Specimen Type

Holotype: W7794/1 in Zoological Survey of India, Kolkata.

References

Gupta, N. K. (1965b) On two amphistomid parasites of the genus Calicophoron from ungulates of economic importance in India. Research Bulletin (N.S.) of the Panjab University.16:pp 283-289.

Gupta, N. K. and Nakhasi, U. (1977). On some amphistomid parasites from India (Parts I & II). Revista Iberica de Parasitologia. 37:pp  205-225, 252-272.

Tandon ,V. and Sharma, V. (1981). Amphistome fauna of ruminants in Himachal Pradesh. Indian Journal of Parasitology .5:pp  241-245.

Eduardo ,S. L. (1983). The taxonomy of the family Paramphistomidae Fischoeder, 1901 with special reference to the morphology of species occurring ruminants. III. Revision of the genus Calicophoron N?â?ñsmark, 1937. Systematic Parasitology. 5:pp 25-79.