386 SPOROZOA. 



point. The myoneme striations are more numerous and may 

 be about twenty in number. The nucleus in these specimens 

 is subspherical or oval, and is placed with its long axis along" 

 the length of the body. Association of the individuals is by 

 their anterior ends. Gametocysts are subspherical or oval. 

 Spore-formation was not observed. 



Dimensions. — Trophozoites 126-8-253-6/i, in length, with 

 a maximum width ranging from 10 to 25-3ja ; epimerite 4-7- 

 9'5/x. in length and about the same in its width. Gametocysts 

 are 47-l-81-6;u, in length by 45-5-62-8/x in width. 



Remarks. — ^Bhatia and Setna (1938) have not found any 

 evidence of schizogony in this species, but their observations 

 are based on the examination of smears only. The chromatic 

 threads or bodies, on the occurrence of which during all stages 

 Ray (1930) lays so much stress, were not found in many 

 specimens. One specimen, however, showed a single deeply- 

 stained thread and two other specimens showed a varying 

 number of chromatic dot-like bodies. The association of the 

 individuals was found to be by their anterior ends, as was 

 described by Caullery and Mesnil (1899) in Selenidium echi- 

 natum, Caullery & Mesnil, and contrary to what Ray (1930) 

 found in other species. A few gametocysts were encountered, 

 but none contained ripe oocysts. 



Habitat. — Coelomic cavity of Amphinome rostrata (Pallas) : 

 taken off Port Blair, Andaman Islands. 



Family EMERIID^ Leger. 



Genus EIMERIA Aime Schneider, 1875. 

 (Pages 173-97.) 



[106. Eimeria gupti, nom. nov. 



"fEimeria cylindrica, Ray & Das-Gupta, 1936 a, p. 345. 



A new species was recorded by Ray and Das-Gupta from 

 Natrix piscator and named E. cylindrica (see p. 179). As the 

 name is pre-occupied for E. cylindrica Wilson from cattle, 

 the species found by Ray and Das-Gupta is re-named 

 E. gupti.] 



315. Eimeria arloingi (Marotel). 



Coccidium arloingi, Marotel, 1905, p. 52. 



Eimeria arloingi, Martin, 1907, p. 6 ; Stevenson, 1911, pp. 355—9, 



pis. xix, XX ; Speigl, 1919, p. 451 ; Velu, 1919, pp. 298-301 ; 



Lerche, 1921, pp. 380-99, pi. xviii ; Schein, 1921, pp. 380-2. 



