662 SUMMARY OF CURRENT RESEARCHES RELATING TO 



but differs from it conspicuously in form, especially in the apparently 

 oblique curvature of the anterior extremity, in the absence of the 

 truncation of the same part, the absence of the rapid and continuous 

 circulation of the endoplasmic contents, and particularly the green 

 coloration of the cortex and sarcode. Trichocysts are very abundant, 

 Cyrtolofhosis n. gen. forms and inhabits singly or several in company 

 a very soft, shapeless, coarsely granular zoocytium. This sheath or 

 zoocytium appears to be formed primarily by a thin exudation from 

 the creature's body, that would be nearly invisible were it not for 

 the extraneous particles that adhere to the surface, and especially for 

 the zooid's excrementitious matter which seems to be the principal 

 building material, and the cause of the coarsely granular aspect. 

 The infusoria are ovate in form and entirely ciliated. One species, 

 G. mucicola, is described. Iluplotes carinata n. sp. differs from all 

 other species in the number of the frontal styles, the character and 

 arrangement of the anal styles and caudal setaB, and in the shape of 

 the carapace, which has a very conspicuous keel or high acute ridge 

 traversing the dorsum from the frontal to the posterior borders. In 

 conclusion, a corrected drawing of E. jplumipea Stokes is given and 

 the species described. 



Infusorial Parasites of the Tasmanian White Ant.* — Mr. W, 

 Saville Kent describes the parasitic Infusoria from the intestine of 

 the Tasmanian white ant. 



Like the types described by Dr. J. Leidy, from the North 

 American white ant, they belong to three distinct varieties. 



TriclionympJia Leiclyi n. sp. differs from Dr. Leidy's T. agilis in 

 the relative shortness of the hair-like cilia which clothe the entire 

 surface of the body. The mouth of TricJionympha, left undetermined 

 by Dr. Leidy, is shown by Mr. Saville Kent to take the form of a 

 transverse slit developed upon one side of the body at a short distance 

 only from the apical extremity. It is followed by a narrow oeso- 

 phageal track which opens into the capacious digestive cavity that 

 occupies one-half or two-thirds of the posterior region of the body. 

 When placed in diluted milk the adult and immature forms of both 

 the American and Tasmanian species, have a habit of anchoring 

 themselves by means of the long fascicle of hair-like cilia that are 

 produced from their posterior extremity. 



Of the two remaining Infusoria, the one is apparently referable to 

 Leidy's genus Pyrsonympha, while the other belongs to Stein's Lopho- 

 monas, so far recorded as a parasite only of Blatta and Gryllotaljpa. 



Unstalked Variety of Podophrya fixa.j — Dr. E. Buck describes 

 the form of the unstalked variety of Podophrya fixa asheing rounded ; 

 four phases in its life-history were observed. In the first or swarm- 

 ing stage the plastids consist of a finely granular parenchyma, the 

 body is rounded at either end, somewhat constricted in the middle, 

 and has a round projecting nucleus. In the second or Sphcerophrya- 



* Papers and Proc. Eoy. Soc. Tasmania, 1884 (1885) pp. 270-3. See also 

 Ann. and Mag. Nat. Hist., xv. (1885) pp. 450-3. 

 t Ber. Senck. Naturf. Gesell., 1884, pp. 298-314. 



