Eimeria halleri sp. n. (Apicomplexa: Eimeriidae) from the Round Stingray, Urolophus halleri (Rajiformes: Dasyatidae)

Authors

• Steve Upton, University of KansasFollow
• John Bristol, University of Texas at El PasoFollow
• Scott Lyell Gardner, University of Nebraska-LincolnFollow
• Donald W. Duszynski, University of New MexicoFollow

Document Type

Article

Date of this Version

1986

Citation

Proceedings of the Helminthological Society of Washington (1986) 53(1): 110-112

Comments

Copyright 1986, the authors. Used by permission

Abstract

Eimeria halleri sp. n. (Apicomplexa: Eimeriidae) is described from the rectal contents ofthe round stingray, Urolophus halleri Cooper (Rajiformes: Dasyatidae) from Puerto Penasco, Mexico. Oocysts are spherical or subspherical, 16.9 x 16.8 (15.0-18.0 x 15.0-18.0) /μm, with a smooth, thin wall. Micropyle, polar granule, and oocyst residuum are absent. Sporocysts are ovoid, 11.1 x 6.8 (10.0-13.0 x 6.0-7.5) /μm and possess Stieda and substieda bodies. Sporozoites are comma-shaped, 9.9 x 3.2 (9.0-11.0 x 2.8-4.0) /μm and contain an ovoid posterior and a spherical anterior refractile body. The sporocyst residuum consists either of numerous finely granular particles scattered among the sporozoites or as a spherical mass.