14 Yerm, 
VERMES. 
apparent disappearance. He concludes that, first, the germinal vesicle of 
the Nematoid egg is not broken up or otherwise destroyed ; secondly, the 
“two new nuclei” are descended from the vesicle; and thirdly, the appear- 
ance of these two new nuclei, or of more, is apparently due to the concen- 
tration of the substance of the germinal vesicle, previously scattered by 
its amoeboid movements. 
Galeb & Pourquier, “ Sur la Filaria hoematica’^ C. R. Ixxxiv, pp. 271- 
273, J. Zool. vi. pp. 127-129, Ann. N. H. (4) xix. p. 352, make the remark- 
able statement that Filarios ^re only found in embryos when there are 
adult forms in the cavities of the maternal heart. 
The following papers also deal with Nematohelminths : — Bavay, Sur 
TAnguillule intestinale (A. mtestinalis)^ trouv<5 par le Dr. Normand chez 
les malades atteints de diarrh^e de Cochin-chine ; C. R. Ixxxiv. pp. 
266-268, J. Zool. vi. pp. 16-20, pi. i., Ann. N. H. (4) xx. p. 350. Lewis, 
Filaria sanguinis-hominis^ mature form, Lancet, ii. p. 463, with figures, 
CB. med. Wiss. 1877, p. 770. T. S. Cobbold, Adult representatives of 
microscopic Filarim (^F. hancrofti)^ Lancet, p. 70; on F. hancrofti^ tom. 
cit. p. 495, with fig. Tikhoniroff, Notice sur un precede nouveau 
facile et shr de trouver trichines dans la chair suspectee'; Bull. Mosc. lii. 
pt. i. pp. 163-159. Ganin described the development of Pelodera teres to 
the Russian Naturalists (Hoyer, pp. 412 & 413), and discussed Natanson’s 
investigations into the development of Oxyuris hrachyura, 0. hlattce, and 
0. diesingi, pp. 413 & 414. Manson, P., On Chinese Ilcemalozoa^ Med. 
Times & Gaz., 1877, Filaria immitis, p. 614, F. sanguinolenta, p. 638, F. 
sanguinis-hominis, p. 662. Ercolani, Osservazioni sulla vita libera dell’ 
Ascaris maculosa^ Rud. (M4m. Ac. Bolog.) ; this last and the papers of 
Claus and Hallez have not been seen by the Recorder. 
A large Nematoid (? Enoplus') was taken in the depths of the Lake of 
Geneva ; Bull. Soc. Vaud. xiv. p. 203. 
OHiETOGNATHA. 
Hertwig (47) describes the fusion of the spermatic and ovarian nuclei 
in Sagitta, p. 277 ; and Moseley (15) describes the colouring of several 
species. 
ENTEROPNEUSTI. 
32. Spengel, J. W. Ueber den Bau und die Entwickelung des Balano- 
glossus. Ber. Yers. Natur. 1., Miinchen, p. 176. 
There are no lateral vessels and no pore at the tip of the proboscis j the 
observations of Metschnikoff and Agassiz on the formation of the gills are 
confirmed. The proboscis does not seem to be comparable with that of the 
NemertineSj or the gill-slits with those of the Tunicata. 
ROTATORIA. 
33. Baurois, j. L’embryogenie du genre Pddalion. Ass. Frau 9 aise 
(Rev. Sci. xiii. p. 303). 
[Not seen by the Recorder.] 
