8 Prot. 
PROTOZOA. 
II.— ANATOMY, BIOLOGY. 
1. GENERAL MORPHOLOGY. 
Gregory (Q. J. Geol. Soc. xlvii, p. 467) has been unable to find any 
trace of organic structure in the “ Tudor specimen of Eozoon /’ which 
was found in a deposit of pure Carbonate of Lime. 
Dreyer (Jen. Z. Nat. xxvi, p. 204) has a beautifully illustrated paper 
on the skeletal structures of Rhizopoda , Sponges , and Echinoderms. 
Balbiani (J. Anat. Phys. xxvii, p. 169) deals with the duplication 
occasionally noticeable among Infusorian forms. 
Methods of Preservation and Preparation. 
Lo Bianco (An. Soc. Esp. xx, p. 273) details certain methods of pre- 
servation of marine animals. For Protozoa , see p. 286. 
Certes (Bull. Soc. Zool. xvi, p. 193) strongly advocates Eismond’s 
methods of preparing Infusoria. See also Riv. Ital. Sci. Nat. xi ; p. 306. 
2. REPRODUCTION. 
Wolters has observed conjugation in Monocystes and Clepsidrina. 
Klossia does not conjugate. The spore-formation in these forms is 
described (Arch. mikr. Anat. xxxvii, p. 99). 
IsciUKAWA (Zool. Anz. xiv, p. 12) describes the process of conjugation 
in Noctiluca. 
See also Hartog, Ischikawa & Perroncito. 
3. PHYSIOLOGY. 
Le Daudec (Bull. Sci. Fr. Belg. xxiii, pp. 261-328) has experimented 
on the digestion of Protozoa. In every group he finds that the ingested 
food is presently surrounded by an acid secretion, which is apparently 
the same in each case. The specific action of this acid on the various 
constituents of the ingested food is discussed. 
Greef (SB. Ges. Marb. iii, p. 21) has observed muscular fibrillso in the 
ectosark of Amceha terricola. 
Faggioli has a paper on the action of the blood upon Protista. 
Linton describes the production of wart-like excrescences on Minnows 
by Psorosperms. Bull. U. S. Fish. Comm, ix, p. 99. 
For pathogenic Protozoa, see also Wernick, J. Microgr. xv, p. 14. 
III.— GEOGRAPHICAL DISTRIBUTION. 
General. — Mingazzini deals with the Geographical Distribution of 
Polycystic Gregarines ; Atti [Rend.] Acc. Rom. 1891, vii, p. 234. 
British Isles. ■ — The Foraminifera of the Gault of Folkestone are the 
subject of a paper by Chapman, J. R. Micr. Soc. 1891, p. 565. 
