North-East India Helminth Parasite Information Database

Carmyerius spatiosus (Stiles et Goldbeger Stiles et Goldbeger) Frandes 1898 Back


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                                   Carmyerius Stiles et Goldberger, 1910 »
                                           Carmyerius spatiosus (Frandes 1898), Stiles et Goldbeger 1910


Capra (hircus), Ovis (aries)




Dharmanagar (Tripura), Agartala (Tripura)


Body elongated, 7.32-11.34 mm in length, 2.71-3.88 mm in width; ratio of body width to body length 1:2.27-1:3.17. Ventral pouch present, more or less triangular. Acetabulum terminal, 0.81-1.62 mm in external diameter; ratio to body length 1:5.24-1:7.17; of gastrothylax type (sensu Näsmark, 1937) in median sagittal section; units of dorsal and ventral circular muscles in lateral sides as follows : d. e. c .m .46-52, d.i.c.m. 34-38, v.e.c.m. 49-52, v.i.c.m. 38-42. Pharynx 0.40-0.54 mm in length, 0.40-0 .58 mm in width; ratio to body length 1:16.26-1:25.26, to diameter of acetabulum 1:2.71-1:3.82; of calicophoron type (sensu Dinnik, 1964) in median sagittal section. Oesophagus 0.36-0 .58 mm long, ratio to body length 1:19.55-1:24.47. Caeca straight, reaching up to posterior region of body. Testes lobed , symmetrical, lateral, near acetabulum; anterior testis 0.36-1. 35 mm in length, 0.36-1.85 mm in width; posterior testis 0.45-1.44 mm in length, 0.40-2.12 mm in width. Ovary 0.22-0.63 mm by 0.22-0.63 mm. Vitellaria consisting of small follicles, scattered from level of pharynx to testicular region. Terminal genitalium of gracile type (sensu Näsmark, 1937) in median sagittal section.


Carmyerius spatiosus is not a frequently occurring paramphistomid infection among the Indian ruminants. This species has been recorded from cattle and buffaloes from several parts of India (Dutt,1980; Mehra, 1980; Hafeez et al., 1987). Mukherjee and Chauhan (1965) listed Gastrothylax bubalis Innes,1912; G. cruciformis Leiper,1910; G. mancupatus Fischoeder. 1901; G. minutus Fischoeder, 1901 and G. synethes Fischoeder, 1901 as synonyms of Carmyerius spatiosus. However, Sey (1983) regarded all these except for G. minutus, as valid species of Carmyerius and in agreement with Prudhoe (1957) considered C. minutus a synonym of C. mancupatus. Further, Sey (1983) recorded C. gregarius (Loss,1896) Stiles et Goldberger, 1910 and C. synethes (Fischeoder, 1901) as the species occurring in India.

Helminthological collections record

NEHU/Z - TM/25

Specimen Type

Holotype: W7776/1 in Zoological Survey of India, Kolkata.


Dutt, S.C. (1980). Paramphistomes and Paramphistomiasis of domestic ruminants in India. Monograph published by Punjab Agricultural University, Ludhiana . pp 162.

Mehra, H. R. (1980). The fauna of India and the adjacent countries. Edited by the Director, Zoological Survey of India. pp 418.

Hafeez, Md. , Reddy, P. R. and Rao, B. V. (1987) A note on the occurrence of Carmyerius spatiosus (Brandes, 1898). Stiles et Goldberger, 1910, from the rumen of a cow (Bos indicus). Indian Journal of Animal Health, 2:pp 175-176

Mukherjee, R. P. and Chauhan, B. S. (1965) Studies on the trematode fauna of India. Part V. Sub-class Digenea: Paramphistomidae Fischoeder (1901). Journal of the Zoological Society of India. 17:pp 151-225.

Sey, O. (1983). Revision of the family Gastrothylacidae Stiles et Goldberger, 1910 (Trematoda:Paramphistomata). Acta Zoologica Academiae Scientiarum Hungaricae. 29:pp  223-252.

Prudhoe, S. (1957). Trematoda-Exploration du Parc National de l'homme en Indochine (Ire Partie). Bulletin de la Societe Zoologique de France. 49:pp 589-608.

Stiles, C. W. and Goldberger, J. (1910). A study of Watsonius (n.g.) watsoni of man and of allied species of mammalian trematode worms of the superfamily Paramphistomidea. Bulletin of the Hygienic Laboratory , Public Health and Marine- Hospital Service of the United States. No.60, pp 259.

Fischeoder ,F. (1901). Die Paramphistomiden der Säugethiere. Zoologischer Anzeiger. 24:pp 367- 375.