Miscellaneous. 309 
minal development, which is peculiar to this Acarine, and has not 
previously been indicated in the Arachnida of this group, resembles 
that occurring in the female termites, and especially in the females 
of the Chigoe (Dermatophilus or Pulex penetrans) of the tropics.” — 
Comptes Rendus, February 25, 1884, p. 539. 
New Contributions to the Knowledge of the Rotutoria. 
By Dr. Evern von Dapay. 
After devoting several years to the study of the Hungarian Roti- 
fera, especially those of Transylvania, the author in 1882 visited the 
group of pools in the Mezéséy, and found in the Mezé-Zdher pool 
several new species, one of them representing a new genus. ‘The 
following are the characters of these new forms :— 
Genus Bracutonus, Ehr. 
Brachionus Margot, n. sp. 
Testula levi, oblongo-ovata; frontis dorso processibus quatuor, 
mediis longioribus, basi inflatis, acutis; lateralibus brevioribus, 
arcuatis ; ventri margine undulata, medio excisa; postice utrin- 
que latere processu longo, acuminato ac valde arcuato; apertura 
pedis bidentata. Long. corp. 0°5—-0°8 mill. 
Collected on the frothy surface of the large pool near Mezé-Zah, 
where it occurred pretty abundantly with small Crustacea and the 
following Rotifera. It most nearly approaches Brachionus amphi- 
ceros, especially as regards the processes of its carapace; but in 
that species the processes are all of equal length, while they differ 
in length in the new one. The essential distinction between the 
two species is to be sought in the rotatory organ, the musculature, 
the jaws, and salivary glands. The new form is named in honour of 
Prof. T. von Margo. 
Genus ScH1zocERca, n. gen. 
Novum genus e Brachionorum familia; testa levi; oculis duobus 
conjunctis sessilibus; pede longo, cylindrico, apice magnopere 
fisso, furcam longam efficto, ramis apice dentibus duobus in- 
zequalibus instructis. 
Schizocerca diversicornis, 0. sp. 
Species unica, charactere generis. Corpore elongato, fronte latius- 
culo, postice parum attenuato; testa levi, frontis processibus 
quatuor, mediis parvis, basi inflatis, marginalibus elongatis, acutis, 
arcuatis ; ventri margine medio excisa ; mucronibus duobus posti- 
cis ineequalibus, dextro multo longiore, acutiore inflexoque, sinistro 
breviore, latiore. Long. corp. 0°15—0-2 mill. 
Occurs frequently in the pool of Mezé-Zih. Resembles Brachi- 
