52 Prot. 
XVIII. PROTOZOA. 
Schutt (351) divides the Peridiniales (= Dinoflagellata) into three 
orders, (1) the Gymnodinacese, comprising the naked forms, Pyrocystis, 
Gymnodinium , etc., (2) the Prorocentracese with cuticular ‘‘shields’ 5 of two 
plates or pieces, Exuviella and Prorocentrum , and (3) Peridiniacese, with 
shields of more than two plates, including Pirophacus , Ceratium and 
(Syllabus, p. 8) Noctiluca ! 
Group Mastigotricha Schew., intermediate between, and combining the 
characters of, Flagellata and Ciliata, maintained by Roux (321 & 322) for 
Monomastix ciliatus , n. g., n. sp. In the same sense, Haller (150) proposes 
the term Mastigociliata , to include Monomastix , Mallomonas , etc. 
Roux (322) divides the Ciliata into the five orders, Holotricha, Hetero- 
tricha, Oligotricha, Hypotricha, and Peritricha. He divides the Holotricha 
into the two sub-orders Stomata and A stoma ta, the latter for the parasitic 
Opalinidce. The former is further sub-divided into the sections Gymno- 
stomata and Trichostomata. 
Shveier (356) in classifying the Infusoria follows chiefly Biitschli & 
Schewiakoff. He divides the Ciliates into Aspiro- and Spirotricha. The 
latter he sub-divides according to Stein, the former, as Roux treats the 
Holotricha, after Schewiakoff. 
F. Miscellanea. 
1. Cultivation and infection. 
Use of Fucus crispus and other media for the cultivation of Amcebse 
Cultivation one of the safest means of distinguishing Amoebae from certain 
normal and pathological tissue-cells, Feinberg (110). 
Cats infected by the faeces from cases of amoebic dysentery, Ucke (396). 
Artificial infection of meal-worms with different spp. of Gregarina, 
Berndt (19). 
Infection of Moles by Cyclospora caryolytica, is not caused by a healthy 
animal eating an infected one, which often occurs. Infection rather takes 
place by the animals eating wood-lice etc., which have themselves fed on 
oocyst-containing faeces of the Mole. Apparently onl} r oocysts can resist 
the salivary and gastric juices. The Arthropods serve only as “ carriers,” 
Schaudinn (335). Artificial infection experiments with Coccidkim schu- 
bergi, Schaudinn (334); wood-lice serve also here as the carriers of the 
oocysts from one Lithobius to another. A difference seems to be that in 
this case, infection can take place directly (by cannibalism), mature 
scliizonts, etc. not being digested. 
Infection of Frogs with Lankesterella minima , Hintze (159). 
Probability of the transmission of Haemogregarines of Reptiles by 
Ixodes or other ectoparasites, Laveran (191). 
The “ Tristeza ” parasite (P. bigeminum) is conveyed by ticks, which 
serve as a true “intermediate” host (different stages of the parasite’s 
development taking place in the tick’s stomach), and not merely as a 
carrier; non-inoculability of rabbits, sheep, pigeons, etc., LigniLres (227). 
As regards the transmission of Trypanosoma equinum , Voges (403) 
thinks that either the fly Mosca brava —very similar to the Tse-tse fly— 
or one of the Tabanidce (common in South America) may be the agent; 
Laveran & Mesnil (203) suggest the possibility of the fly Stomyxes 
calcitrans being the conveyer. [We are yet quite in the dark as to 
whether the fly acts simply as a “carrier” or whether a Trypanosome 
undergoes a specific part of its life-cycle therein, as in the case of other 
blood-parasites.] A new sp. of T. in central Africa, carried by the 
“ aino,” a fly allied to, if not identical with, Glossina morsitans, Brumpt 
(47). Inoculation of fishes with Trypanosomes, Laveran & Mesnil (196 
& 199), 
