A new caryosporan (Apicomplexa: Eimeriidae) from flat-headed snake,Tantilla gracilis (Reptilia: Ophidia: Colubridae), from McCurtain County,Oklahoma, USA |
| |
Authors: | McAllister Chris T. Hnida John A. Trauth Stanley E. |
| |
Affiliation: | 1.Science and Mathematics Division, Eastern Oklahoma State College, Idabel, OK, 74745, USA ;2.Department of Microbiology and Immunology, Midwestern University, Glendale, AZ, 85308, USA ;3.Department of Biological Sciences, Arkansas State University (Emeritus), State University, Jonesboro, AR, 72467, USA ; |
| |
Abstract: | The flat-headed snake, Tantilla gracilis Baird and Girard is a small reptile belonging to the family Colubridae. Feces from a single T. gracilis from McCurtain County, Oklahoma, USA, was collected and examined for coccidia; it was found to be passing a new species of Caryospora. Oöcysts of Caryospora sargentae n. sp. are spheroidal to typically subspheroidal with a moderately-pitted bi-layered wall, measure (L × W) 20.7 × 19.2 µm, and have a length/width (L/W) ratio of 1.1; a micropyle and oöcyst residuum were absent but one to several small, irregular to spheroidal masses of non-refractile debris within the oocyst was present as well as a polar granule attached to the inner oöcyst wall. Sporocysts are ovoidal and measure 15.0 × 11.0 µm, L/W 1.4; a nipple-like Stieda body is present as well as a distinct rounded sub-Stieda body. The sporocyst residuum is composed of a large, dense, irregular mass of various sized granules located between and often obscuring the sporozoites. This is the third coccidian described from the flat-headed snake. In addition, we include some data on the endogenous development of the coccidian. |
| |
Keywords: | |
本文献已被 SpringerLink 等数据库收录! |
|