ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 729 



individuals of Trickodina contained parasites which may be stages of 

 A. mucicola. It may be that the Rhizopod is disseminated by the 

 Ciliate. 



Trypanosome in an Edentate.* — F. Mesnil and E. Brimont describe 

 Trypanosoma legeri sp. n. from an ant-eater {Tamandua tridactyla). It 

 is more like a Trypanosome of Birds than any species from Mammals. 

 The ant-eater also harboured the young stages of a minute Nematode, 

 which is recorded as Microfilaria mathisi sp. n. 



Trypanosome of Lerot.f — A. Laveran and A. Pettit bring forward 

 evidence pointing to the conclusion that Trypanosoma blanchardi found 

 in Myoxus nitela is propagated by means of a flea, which Ch. Rothschild 

 has named Geratophyllus laverani sp. n. 



Division of Trypanoplasma congeri. :f — 0. H. Martin gives an ac- 

 count of his observations on Trypanoplasma congeri, a parasite of which 

 the active form is found in the mucous lining of the conger's stomach. 

 He finds that the division of this form shows hardly a single point of 

 agreement with that of T. helicis previously described by Keysselitz, 

 and doubts whether the two can be profitably united in a single genus. 

 In the division of the active elongate stages of T. congeri the following 

 features were noted. The basal granule divides. This is followed imme- 

 diately by a splitting of the anterior flagellum, and later by the splitting 

 of the posterior flagellum and membrane. The tropho-nucleus in the 

 first stage enlarges, the intra-nuclear chromatin condensing on the karyo- 

 some. The tropho-nucleus assumes first a spindle and then a dumb-bell 

 shape, which appears to persist to quite a late stage in the division. 

 The karyosome appears to act as an internal division centre, and no trace 

 of individual chromosomes can be seen at any stage of division. The 

 kinetonucleus increases in size and divides by a simple transverse con- 

 striction. From its behaviour during division the kinetonucleus cannot 

 be regarded as a centrosome, not at any rate so far as T. congeri is 

 concerned. 



New Parasites in Bulbul's Blood. § — C. Mathis and M. Leger have 

 found in the blood of the bulbul, Ixns hainanus, three new parasites 

 — two Protozoa, Leucocytozoon brimonti sp.n., and Trypanosoma brimonti 

 sp. n., and a Nematode, Microfilaria brimonti sp. n. 



Cytoplasmic Fibrillation of Chilomonas.|| — J. Kunstler and Ch. 

 Griueste find that there is a very complex internal scaffolding or frame- 

 work of delicate fibrils in the cytoplasm of the common Chilomonas 

 parametrium. 



Revision of Genus Ceratocorys.f — C. A. Kofoid points out that 

 superficial resemblauce to other Dinoflagellates in form and in organs of 

 flotation on the part of the majority of the species of the genus Cerato- 



* C.R. Soc. Biol. Paris, lxix. (1910) pp. 448-51. 



t Op. cit., lxviii. (1910) pp. 950-2. 



t Quart. Journ. Micr. Sci., lv. (1910) pp. 485-96 (1 pi. arid 1 fig.). 



§ C.R. Soc. Biol. Paris, lxix. (1910) pp. 30-2. || Tom. cit., pp. 200-1. 



1| Univ. California Publications (Zool.) iv. (1910) pp. 177-87. 



Dec. 21st, 1910 3 C 



