MORPHOLOGY AND PHYSIOLOGY. 
ProL 23 
II. — MORPHOLOGY AND PHYSIOLOGY. 
1. Anatomy. 
BaRgoni (10) describes in detail the structure and reproduction of a 
Foraminifer ( Salpicola amylctcea, n. g. & sp.), parasitic in Salpa. The 
granules of the protoplasm contain amylum, which changes into glucose 
when the protoplasm has been reduced by active division arid is not able 
to obtain other food-material. 
Gould (88) has, by means of sections, studied the minute structure of 
Pelomyxa palustris , confirming on the whole GrcefFs observations as to 
the foam-like structure of the protoplasm, and its vacuolisation. She also 
describes a central denser ring of protoplasm and the refringent bodies. 
Greeff’s rod-like bodies, however, are not crystals, but bacteria. 
Levander (153) describes a new Peridinium (P. catenaium ) from the 
Bay of Finnland, which forms chains of 2-8, sometimes up to 16 
individuals. The plasma protruding from the posterior pore of the one 
individual fuses with the plasma from the anterior pore of the succeeding 
individual. 
Przesmycki (190) has found cell -granules, corresponding to Altmann’s 
granules, in all Protozoa , she has examined (Pararilceciwn, Colpidium r 
Opalina ), but does not regard them as elementary constituents of the 
cells. 
RhuMbler (196) gives a detailed description of Saccammina sphairica, 
M. Sars, from the Baltic, of the formation and growth of the shell* and 
of its soft body. In about 40 per cent, of the cases the shells did not 
contain the animal proper, but various intruders, Protozoa and Metozoa. 
In the development of the nucleus the author distinguishes nine stages. 
Rtiumbler (198) solves the much-discussed question of how to 
account for Orbitlina shells containing Globigerina. When Globigerina 
has attained a certain size it retires into a shell of Orbulina , to protect 
itself against the waves, etc., and absorbs, later on, the shell to a greater 
or less extent. 
RhumbleR (199) having studied the perforation of the embryonic 
chamber of Peneroplis pertusu's , comes to the conclusion that Peneropli , 
cdnnot represent the ancestral form of Orbitolites, as generally assumed, 
since Orbitolites is imperforate. 
Rompel (203) describes for the first time the Centrosome of an 
Infusorium ( Kcntrochona nebalice , n. g. & sp.), and its behaviour during 
cell-division. 
Saciiaroff (220) has studied the Hcematozoa of birds, and comes to 
the conclusion that the flagellate bodies described by Laveran, Danilew- 
sky, Canalis, Grassi & Feletti, are nothing but chromatin filaments of 
dying Hccmotozoa. 
Topsent (261) describes in detail Ponlomyxa Jiava , a marine Rhizopode, 
