402 
SUMMARY OF CURRENT RESEARCHES RELATING TO 
The second part of the paper is devoted to the structure and cell- 
division of Ojjhryoscolex caudatus , a parasitic form which is very common 
in the sheep. Among peculiarities of structure now noticed for the first 
time is the presence of a peculiar supporting structure near the gullet. 
This is of very complex form and resistant substance. The process of 
cell-division is peculiar, in that the division plane is oblique and is so 
placed that the anterior moiety is about two-thirds of the size of the 
posterior. The process of division is however accompanied by an unequal 
elongation of the body, which is such that at the end of the process the 
two individuals are approximately of the same size. The elongation is 
accompanied by a corresponding narrowing of the body, a statement 
which is illustrated by copious tables of measurements. Measurements 
are also given of nucleus and of total body length and breadth in normal 
and dividing individuals. 
Origin and Relationships of Foraminifera.* — The late Prof. Eimer, 
in conjunction with Dr. Fickert, prepared some time ago an elaborate 
memoir on this subject which is now published by the latter author. 
The paper is divided into two parts : — firstly, a general jmrt containing a 
criticism of existing classifications of the Foraminifera, and an exposition 
of the principles which, according to Prof. Eimer, should guide the 
systematist ; and secondly, a suggested classification of the group. The 
second part is due to both authors, for the first Prof. Eimer alone is 
responsible. As it is in essence merely a re-statement of those “ laws and 
principles of development ” with which Prof. Eimer’s name is associated, 
we can do no more here than to refer those interested to the original 
memoir. 
Supposed Growth of Shell in Testacea.j — Dr. E. Penard considers 
carefully the theory of Khumbler that the shell of Testacea, like Difflu- 
gia, Arcella , &c., exhibits a genuine growth. According to Penard there 
is in such cases (Thecamoebse) no increase after the shell is once 
formed. 
Sporozoa in Gut of Slow-worm.J — M. Louis Leger reports the con- 
stant occurrence of a species of Coccidium and a larger Gregarine (with 
navicular sporocysts) in the alimentary canal of Anguis fragilis. 
* Zeitschr. f. wiss. Zook, lxvi. (1899) pp. 599-708 (45 tigs.). 
t Arch. Sci. Phys. et Nat., vii. (1899) pp. 247-71. 
X Comptes Rendus, cxxviii. (1899) p. 1128. 
