ZOOLOGY AND BOTANY, MICROSCOPY, ETC. 
65 
Filaria immitis in a Japanese Wolf.*— Herr Janson reports the 
presence of a large number of examples of this parasite in the heart of 
a Japanese wolf. This is the first time that F. immitis has been found 
in any other animal than the dog, and the author believes it is common 
to all species of the genus Ganis. 
Trichinosis.f — Hr. P. Cerfontaine gives a more detailed account of 
his studies on Trichinosis, to the preliminary notice of which we have 
already called attention-! 
Acanthocephala.§ — Hr. J. E. Kaiser continues his monograph on 
EcMnorhynchus. The first part contained a description of nine species, 
including two new forms, E. uncinatus and E. spinosus, and an account 
of the structure and development of the cuticle, the hypodermic tissue, 
and the musculature. The second part deals with the structure and 
development of the nervous and reproductive systems, and with the 
embryonic and post-embryonic development. To this is added an 
appendix containing a critical review of Hamann’s recent monograph on 
Acanthocephala. 
y. Platyhelminth.es. 
Spermatogenesis of Turbellaria.|| — Herr W. Kepiachoff describes 
the origin of the spermatozoa from the spermatids of an undescribed 
“ transparent pelagic acoelous ” Turbellarian. His most important 
result is his corroboration of the view that the spermatozoa are dis- 
tinctly cellular rather than nuclear. In various stages it is possible to 
distinguish an outer protoplasmic substance from an enclosed chromatin 
mass. The author believes that what often seems to be absence of proto- 
plasm from the head of a ripe spermatozoon is only apparent. 
Distomum clavigernm.U — Hr. E. J. Noack has investigated the 
anatomy and histology of this Fluke, which is equally common in the 
green and brown frog. It is distinguished from most other members of 
its genus by the lateral position of the genital pores. It is also remark- 
able for the fact that the oral sucker is more powerfully developed than 
the ventral ; in the latter there are no meridional fibres, and the equa- 
torial fibres stand so far apart that they cannot be said to form a layer. 
Self-fertilization does not seem to occur. 
Monograph of Temnocephalese.** — Prof. W. A. Haswell has prepared 
a monograph of this interesting group of parasites, which forms part of 
the handsome volume which has been prepared as a memorial to the late 
Sir W. Macleay. In making a revision of the species he has found it 
necessary to establish a new genus Graspedella ( G . Spenceri) for a 
parasite which lives in the branchial cavities of Astacopsis bicarinatus. 
Of the genus Temnocephala twelve species have been recognized, which 
* Berl. Tierarztl. Wochenschr., 1892, No. 29. See Centralbl. f. Bakteriol. u. Para- 
sitenk., xiv. (1893) p. 499. 
t Arch, de Biol., xiii. (1893) pp. 125-45 (1 pi.). 
t See this Journal, 1893, p. 634. j 
§ Bibliotheca Zoologica (Leuckart and Chun), Heft 7, pp. 1-148 (10 pis.). 
j| Zeitschr. f. wiss. Zool., lvi. (1893) pp. 117-37 (1 pi.). 
t 8vo, Leipzig, 1892, 56 pp., 2 pis. See Centralbl. f. Bakteriol. u. Parnsitenk., 
xiv. (1893) pp. 565 and 6. 
** Macleay Memorial Volume, 4to, Sydney, 1893, pp. 93-152 (6 pis.). 
1894 ‘ F 
