THIS GENERAL SUBJECT. 
Prot. 2 
lonthce and S. gryllotalpai , Grassi), Cimcenomonas , g. n., Plagiomonas , g. n. 
(based on Relortomonas gryllotalpce , Grassi), Monomita, g. n., Heteromita 
and Dicercomonas, Duj., D. muris, sp. n. (from ifws and AnncoZa) ; (2) Jfe- 
gastomidea , fam. n., type Dimorphus muris, Grassi (from 4 spp, of ilfws, 
Arvicola, the cat, and man) ; (3) Lopliomonadidea, type Lophomonas 
blattarum, Stein ; (4) Trichomonadidea , fam. n., for Trichomonas melo- 
lonthce , Grassi ; (5) Trypanosomata , Kent, includes Trypanosoma and 
Paramecioides, Grassi (containing T eberthi, Kent, and P. costatus , 
sp. n., from blood of liana csculcnta ). Class Lobosa : Amoj&a coZt, Bosch., 
A. muris, sp. n. (from rats and mice), A. ranarum , Grassi, may be rolatod 
to the associated Paramecioides costatus , sp. n., A. chcctognatlii (= A.sagitta ?, 
Grassi) and A pigmentifera , spp. nn., both from the 6 species of Chceto- 
gnatha of the Straits of Messina. Class Sporozoa : Coccidium rivolta, 
sp. n. (from intestine of cat), ? sp. n. of Coccidium from a Coronella , 
M oner on from blood of Ilyla viridis , &c. 
The author combats Cunningham’s views on Monocercomonads and 
Amcebce of man, and groups the association or symbiosis of living 
forms under three heads : (1) Reciprocal advantage, he terms alliance 
(consorzio), mutualism of Yan Beneden ; (2) harmless association, he 
calls, with Yan Beneden, commensalism ; (3) advantage to one, harmful 
to the other, is parasitism. After drawing some medical conclusions, he 
concludes by stating : (1) Certain Amcebai undergo a cycle comparable 
with that of Protomyxa aurantiaca ; (2) the present classification of 
Flagellates should be reformed ; (3) certain kinds of Protistce (Coccids) 
are not properly determinable without a knowledge of their develop^ 
ment. The plates illustrate Monocercomonas hominis, M. insectorum , 
Heteromita laccrtcc , Cimcenomonas batracliorum , Monomita muscarum, 
Plagiomonas gryllotalpce , Heteromita P cavice, the Monerao ? of frogs, 
Megastoma entericum, Trichomonas melolonthce, Paramecioides costatus , 
Trypanosoma sanguinis , young ?, spores of the Coccidium of Coronella , 
Coccidium rivolta , Amoeba coli, A. chcetognathi, A. pigmentifera. 
Gruber, A. Untersuchungen fiber einige Protozoen. Z. wiss. Zool. 
xxxviii. pp. 45-70, pis. ii.-iv. [ Cf . Ann. N. H. (5) xi. pp. 266-276 
& 315-326, pi. xiii., and J. R. Micr. Soc. (2) iii. pp. 222 & 223.] 
Pachymyxa hystrix , g. & sp. nn., Amoeba obtecta, sp. n., Spongomonas 
guttula, sp. n., Stichotricha urnula, sp. n. Describes fusion in Actinophrys 
sol, and discusses the function of the nucleus generally. 
Lankester, E. Ray. Review of Saville-Kent’s Manual, in Nature, 
xxvii. pp. 601-603. 
Parietti, E. Intorno ai Protisti della Yaltravaglia. Boll, scieut. iv. 
pp. 105-112. 
Parona, Corrado. Di alcuni nuovi Protisti riscontrati nelle acque 
della Sardegna, e di due altre forme non ben conosciute. Atti Soc. 
Ital. xxvi. pp. 149, pi. iv.A. (Boll, scient. v. pp. 45-47, &c.) 
Diplodorina massoni, From., a redescription ; Zigoselmis leucoa , From.; 
A mceba digit ata, sp. n., fresh- water, Cagliari ; A. velata, sp. n., from a silver 
mine, Fonni ; Acineta linguifera, C. & L., var. n. interrupta, salt pools, 
