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 oesophagus. 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. Claparede characterizes his genus Balatro as foUows : — 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, Taplirocampa of Gosse is a genus of 

 Rotatoria destitute of vibratile cilia. Mr. Gosse placed it originally 

 near Notommata and Furcidaria, but has since removed it to the 

 neighbourhood of Chcetonotus among the Gastrotricha. In this M. 

 Claparede thinks he is wrong, as Taphroeampa possesses a mastax 

 the structure of which is very near that of the Furcularice and Mo- 

 nocercce. 



M. Dujardin also describes his genus Lindia as destitute of cilia ; 

 and M. Claparede regards it as nearly allied to his Balatro, which is 

 stiU more closely related to Alhertia (Duj.). — Annales des Sciences 

 Naturelles, serie 5, tome viii. pp. 12-16. 



Occurrence of Terebratula (Waldheimia) pseudo-jurensis {Leymerie) 

 in England. By J. F. Walker, B.A., F.G.S. &c. 



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 

 described by M. Leymerie (Mem. Soc. Geol. Fr. 1842, tome v. p. 12) 

 from the Neocomian beds of France. 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 fi'om Siberia 

 to China, the few statistics I 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 



