Isospora takydromi, Megía-Palma & Martínez & Nasri & Cuervo & Martín & Acevedo & Belliure & Ortega & García-Roa & Selmi & Merino, 2016

Megía-Palma, Rodrigo, Martínez, Javier, Nasri, Intissar, Cuervo, José Javier, Martín, José, Acevedo, Iván, Belliure, Josabel, Ortega, Jesús, García-Roa, Roberto, Selmi, Slaheddine & Merino, Santiago, 2016, Phylogenetic relationships of Isospora, Lankesterella, and Caryospora species (Apicomplexa: Eimeriidae) infecting lizards, Organisms Diversity & Evolution (New York, N. Y.) 16 (1), pp. 275-288 : 280-281

Isospora takydromi sp. nov.

Description: The sporulated oocysts (N =26) had a measure of 23.9 ± 3.0 (16.6–30.5) ×19.4 ± 2.3 (24.4–15.3)μm, with a shape index (length/width) of 1.2±0.10 (0.9–1.4). The ellipsoidal oocysts had a bilayered wall with a smooth surface. It has a measure of 0.76 (mean)±0.1 and ranged from 0.5 to 1.0 μm thick. There was no micropyle on the surface, and the polar granule (PG) was absent. The tetrasporozoic sporocysts (N =25) were 12.5 ± 1.3 (14.5–9.7) ×8.6 ± 0.6 (9.8– 7.5)μm, with a shape index of 1.4±0.1 (1.1–1.6). Specimens presented a knob-like flattened stieda body (SB) on one side of the smooth surface; a rounded substieda body (SSB) was also present (1.5×1.0 μm). The sporocyst residuum (SR) was visible among the sporozoites (SPs), which were elongated and had two refractile bodies (RBs) at either end.

Sporulation: Probably exogenous. The time of sporulation was not recorded.

Type host: Takydromus sexlineatus Daudin, 1802 .

Origin of the sample: Imported to Spain from Indonesia in 2013. No type locality was available .

Prevalence of the parasite: 6/13 (46.1 %) of examined individuals were infected.

Type material: Phototypes and DNA voucher were deposited at the Museo Nacional de Ciencias Naturales-CSIC in Madrid, Spain, under the accession number MNCN / ADN: 65269. No lizards were euthanized, and therefore, a symbiotype was not deposited. The 18S rRNA sequence was deposited in GenBank (accession number: KU180238 ) .

Etymology: The nomen triviale is derived from the generic part of the scientific name of the host, in the genitive singular ending, meaning of Takydromus . The first parasite species described for a genus of hosts is usually named after the host’ s generic name. In this case, however, the name was available because the only other species of Isospora described in the genus Takydromus received the name of the locality where it was discovered (i.e., Isospora nagasakiensis Miyata, 1987 ).