PLATYHELMINTHES, NEMATO HELMINTH ES. 
Verm . 7 
Vou Kennel’s paper (9) is an important contribution to our knowledge 
of the anatomy of the Planarians. 
M(%nin (13) is of opinion that the armed Tamice exhibit a suppressed 
development ; in a Carnivore, hooks are necessary ; in a Herbivore, the 
Tamia may pass into a more retired position. This doctrine is criticized 
by Mouiez (21). 
Moniez (23) states that he has been continuing his observations on 
the development of the head of the Toinice. [See Bull. Sci. Nord. (2) i. 
1878, No. 11.] 
On Distomum crassicolle (with “ brief notes on Huxley’s proposed 
Classification of Worms”), see Minot, P. Bost. Soc. iii. pp. 1-12, pi. i. 
Hallez (5), according to Bull. Sci. Nord. (2) ii. pp. 325-338, 
divides his work into three parts ; in the first, which deals with the 
anatomy and etiology of the Turbellaria^ we have to note : (1) the 
excretory water-vascular system is only found in the Rhabdoccela ; it is 
absent in the Dendrocmla. (2) Observations on Stenostomum leucops and 
Microstomum lineare have shown that the ovaries are formed by budding, 
at the expense of the intestine, while the testes (in the latter species, at 
any rate) are derived from the ectoderm. Although the Turbellaria are 
hermaphrodite, the male organs are generally in activity before the 
female. The author directs attention to the development of the sper- 
matozoa and the characters of the accessory male glands. The presence 
of two kinds of ova is referred to conditions of alimentation. The 
embryology of these forms has been chiefly studied in Leptoplana tremel- 
laris and Eurylepta auriculata ; the gastrula is formed by epiboly. 
Certain general conclusions are drawn. The points of difference between 
the Rhabdoccela and Dendroccela are insisted on, and a phylogenetic 
table is presented. The following new forms are described by the 
author : — 
Microstomum giganteum. 
Dinophilus metameroides. 
Vortex graffi. 
Prostomum giardi. 
Vorticeros sclimidti. 
Turbella inermis. 
Monocelis balani. 
NEMATOHELMINTHES. 
32. Joseph, C. Ueber die in den Kraiuer- Tropfsteingrotteu eiuhei- 
mischen frei lebenden Rundwiirmer (Nematoden). Zool. Anz. ii. 
pp. 275-277. 
33. Lewis, T. R. The Nematoid Haematozoa of Man. Q. J. Micr. Sci. 
xix. pp. 246-259, pi. xii. 
34. Mayzel, W. Ueber die Vorgange bei der Segmentation des Eies 
von Wiirmern (Nematoden) und Schnecken, Zool. Anz. ii. pp. 280- 
282. 
35. Turnbull, C. S. Filaria in the Eye. Veter, ii. 657-664. 
