386 Miscellaneous. 
mallei; it opens directly into. a thick-walled intestine, the inner 
layer of which is brownish, This intestine is more simple than in 
the Rotatoria generally ; it extends in a straight line from the mouth, 
to the anus, and its narrowed anterior part scarcely merits the name 
of esophagus. No glands were observed in connexion. with the 
stomach. When the animal is extended the curved mallei project 
externally. 
All the individuals observed were females. The ovary occupies 
the ventral portion of the body, beneath the intestine; the mature 
ovules are ovoid, and occupy the posterior extremity of the body. 
M. Claparéde characterizes. his genus Balatro as follows :—Body 
vermiform, very contractile; posterior extremity terminated by 
two lobes: one ventral, of a semilunar form, transverse ; the other 
dorsal, nearly cylindrical, acting as a foot. Mallei in the form of 
crooks. No vibratile organs; no eyes. : 
Besides Apsilus and Balatro, Taphrocampa of Gosse is a genus of 
Rotatoria destitute of vibratile cilia. Mr. Gosse placed it originally 
near Notommata and Furcularia, but has since removed it to the 
neighbourhood of Chetonotus among the Gastrotricha, In this M. 
Claparéde thinks he is wrong, as Taphrocampa. possesses a mastax 
the structure of which is very near that of the Furcularie and Mo- 
NOCET CH. 
_ M. Dujardin also describes his genus Lindia as destitute of cilia ; 
and M. Claparéde regards it as nearly allied to his Balatro, which is 
still more closely related to Albertia (Duj.).—Annales des Sciences 
Naturelles, série 5, tome viil. pp. 12-16. 
Occurrence of Terebratula (Waldheimia) pseudo-jurensis (Leymerie) 
in England. By J.F. Watxer, B.A., F.G.8. &e. 
Among the Brachiopoda which I have obtained from the Lower 
Greensand deposit at Upware, Cambridgeshire, I detected a species 
which, on examination, proved to be the Terebratula pseudo-jurensis 
deseribed by M. Leymerie (Mém. Soc. Géol. Fr. 1842, tome v. p. 12). 
from the Neocomian beds of Franee. Mr. Keeping has also obtained 
specimens of this fossil for the Woodwardian Museum. As the 
species had not previously been discovered in this country, I thought 
that a notice of its occurrence would have some interest for the 
readers of the ‘ Annals.’ 
The inspection of the loop proves that this species is a Waldheimia, 
Fossil Ivory. 
The ivory of Mammoth-tusks is an article of trade peculiar to 
Siberia. Although forming too slight an item to be taken into con- 
sideration in the statistical returns of the trade of Russia, still, as 
this ivory formed one of the earliest articles of export from Siberia 
to China, the few statistics 1 have been able to collect with reference 
to this curiosity of commerce may not be without interest. 
About 40,000 lbs. of fossil ivory (that is to say, the tusks of at 
least 100 mammoths) are bartered for every year in New Siberia, so 
