Adult tetraphyllidean tapeworms (Platyhelminthes: Eucestoda) from the spiral intestines of 3 species of potamotrygonid stingrays (Paratrygon aiereba, Potamotrygon castexi, and Potamotrygon motoro) in the Madre de Dios river in Peru were found to host numerous cysts embedded in their parenchymal tissues. Histological sections of the cysts revealed the presence of a scolex bearing 4 suckers and an unarmed apical organ consistent with larval stages of both Cyclophyllidea and Proteocephalidea. To further elucidate their identities, partial 28S ribosomal DNA (rDNA) sequences were characterized from 3 cysts and 4 adult Rhinebothrium spp. ‘host’ worms and screened against all available cestode 28S rDNA data. Initial BLAST screening and subsequent alignment ruled out the possibility that the cysts were cyclophyllidean, and the cyst and adult sequences were thus aligned together with all available lecanicephalidean, litobothriidean, proteocephalidean, and tetraphyllidean sequences. Sequences from all 3 cysts were identical, and phylogenetic analysis clearly placed them among derived members of the Proteocephalidea, although no exact match was found. Sequences from the adult host worms formed 2 identical pairs and grouped together with other tetraphyllidean species from rays. These results are compared with records of hyperparasites of South American catfish cestodes. This is the first confirmed record of a proteocephalidean cestode parasitizing a tetraphyllidean cestode.
Skip Nav Destination
Article navigation
October 2003
SYSTEMATICS-PHYLOGENETICS|
October 01 2003
CESTODES OF CESTODES OF PERUVIAN FRESHWATER STINGRAYS Available to Purchase
F. B. Reyda;
F. B. Reyda
Department of Ecology and Evolutionary Biology, The University of Connecticut, Storrs, Connecticut 06269-3043. [email protected]
Search for other works by this author on:
P. D. Olson
P. D. Olson
Department of Ecology and Evolutionary Biology, The University of Connecticut, Storrs, Connecticut 06269-3043. [email protected]
* Parasitic Worms Division, Department of Zoology, The Natural History Museum, Cromwell Road, London SW7 5BD, U.K
Search for other works by this author on:
J Parasitol (2003) 89 (5): 1018–1024.
Citation
F. B. Reyda, P. D. Olson; CESTODES OF CESTODES OF PERUVIAN FRESHWATER STINGRAYS. J Parasitol 1 October 2003; 89 (5): 1018–1024. doi: https://doi.org/10.1645/GE-3143
Download citation file:
Sign in
Don't already have an account? Register
Client Account
You could not be signed in. Please check your email address / username and password and try again.
Could not validate captcha. Please try again.
Sign in via your Institution
Sign in via your InstitutionCiting articles via
MOLECULAR SURVEY OF HAEMOSPORIDIAN PARASITES IN HAWKS, FALCONS, AND OWLS (ACCIPITRIFORMES, FALCONIFORMES, STRIGIFORMES) FROM MINNESOTA AND NORTH DAKOTA, WITH REMARKS ON THE PHYLOGENETIC RELATIONSHIPS OF HAEMOSPORIDIANS IN NORTH AMERICAN RAPTORS
Jeffrey A. Bell, Timothy G. Driscoll, Tyler J. Achatz, Jakson R. Martens, Jefferson A. Vaughan
TWO NEW SPECIES OF HENNEGUYA THÉLOHAN, 1892 (CNIDARIA: BIVALVULIDA: MYXOBOLIDAE) INFECTING GILL OF BLUE CATFISH, ICTALURUS FURCATUS (RAFINESQUE) (SILURIFORMES: ICTALURIDAE) FROM THE TALLAPOOSA RIVER AND CHESAPEAKE BAY TRIBUTARIES
Steven P. Ksepka, Heather Walsh, Christine L. Densmore, Triet N. Truong, Stephen A. Bullard
NEW SPECIES OF AXINE ABILDGAARD, 1794 (MONOGENOIDEA: AXINIDAE) INFECTING GILL LAMELLAE OF ATLANTIC FLYINGFISH, CHEILOPOGON MELANURUS (VALENCIENNES) (EXOCOETIDAE) IN THE WESTERN ATLANTIC OCEAN WITH PHYLOGENETIC ANALYSIS AND COMMENTS ON THE FEMALE GENITALIA OF AXINE SPP.
John H. Brule, Micah B. Warren, William B. Driggers, III, Stephen A. Bullard
AMPHIBIAN PARASITES EXHIBIT IDIOSYNCRATIC RELATIONSHIPS WITH SPATIOTEMPORAL ENVIRONMENTAL AND HOST-COMMUNITY VARIATION
Kyle D. Gustafson, Vasyl V. Tkach, Robert A. Newman