Abstract
This paper discusses collar spine arrangements in the genus Echinostoma. All arrangements are of uneven numbers of collar spines on the oral collar. The total number of collar spines in these arrangements ranges from a low 31 to a high 51. There are 11 models of collar spine arrangements in the Echinostoma consisting of spine numbers 31, 33, 35, 37, 39, 41, 43, 45, 47, 49, and 51. Representative species with these collar spine arrangements are given in the article. The number of collar spines in a species is identical in both the larval and adult forms. Reports of even numbered spine counts in the genus Echinostoma are erroneous and probably reflect counts on worms with lost, retracted, or supernumerary spines.
Similar content being viewed by others
References
Bashkirova E (1947) Family Echinostomatidae Dietz, 1909. In: Skrjabin KI (ed) Trematodes of animals and man, vol 1. AN SSSR, Moscow, pp 310–392
Fujino T, Fried B, Hosier DW (1995) The expulsation of Echinostoma trivolvis (Trematoda) from ICR mice: extension/retraction mechanisms and ultrastructure of the collar-spines. Parasitol Res 80:581–587
Gorchilova L, Kanev I (1994) Echinostoma echinatum (Zeder, 1803): ultrastructure and enzymocytochemical characteristic of the tegument and of the gut wall. Helminthologia (Kosice) 31:133–138
Kanev I (1990) Check list of the parasitic worms of Echinis, Echinostoma, Echinostomatidae with references for its renaming, replacement and reclassify. Publishing House of Bulgarian Academy of Sciences, Sofia
Kanev I (1994) Life cycle, delimitation and redescription of Echinostoma revolutum (Froelich, 1802) (Trematoda: Echinostomatidae). Syst Parasitol 28:125–144
Kanev I, Busta J (1992) Variation and abnormality in collar spination of adult and larval echinostomes (Trematoda). Acta Parasitol Pol 37:47–49
Kanev I, Eisenhut U, Ostrovski da Nunez M, Manga-Gonzalez MY, Radev V (1993) Penetration and paraesophageal gland cells in Echinostoma revolutum cercariae from its type locality. Helminthologia (Kosice) 30:131–133
Kanev I, Radev V, Vassilev I, Dimitrov V, Minchella D (1994) The life cycle of Echinoparyphium cinctum (Rudolphi, 1803) (Trematoda: Echinostomatidae) with reexamination and identification of its allied species from Europe and Asia. Helminthologia (Kosice) 31:73–82
Kanev I, Dezfuli BS, Nestorov M, Fried B (1999) Scanning electron microscopy of the collar region of Deropristis inflata and Echinostoma revolutum. J Helminthol 73:51–57
Kostadinova A (2005) Family Echinostomatidae. In: Jones A, Bray RA, Gibson DI (eds) Keys to the Trematoda, vol 2. CABI, London, pp 9–64
Lie KJ (1963) Studies on Echinostomatidae in Malaya. III. The adult Echinostoma malayanum Leiper, 1911 (Trematoda) and the possible synonymy of Artyfechinostomum sufrartyfex Lane, 1915. Z Parasitenkd 23:124–135
Skrjabin KI, Petrov AM, Bashkirova E (1947) Echinostomes of domestic and wild birds in USSR. In: Skrjabin KI (ed) Trematodes of animals and man, vol 1. AN SSSR, Moscow, pp 392–490
Skrjabin KI, Bashkirova E (1956) Family Echinostomatidae Dietz, 1909. In: Skrjabin KI (ed) Trematodes of animals and man, vol 12. AN SSSR, Moscow, pp 51–930
Yamaguti S (1971) Genus Echinostoma Rud., 1809. In: Yamaguti S (ed) Synopsis of digenetic trematodes of vertebrates, vol 1. Tokyo, Keigaku, pp 529–533
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Kanev, I., Fried, B. & Radev, V. Collar spine models in the genus Echinostoma (Trematoda: Echinostomatidae). Parasitol Res 105, 921–927 (2009). https://doi.org/10.1007/s00436-009-1475-0
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00436-009-1475-0