124 



vermehrt werden, aber wenn man erwägt, daß wir Paläontologen uns 

 dauernd bemüht haben, alle die fossilen Typen in die Klassen der 

 lebenden einzureihen, so wird man uns schließlich zugestehen müssen 

 für die Typen, die sich beim besten Willen nirgends recht einreihen 

 lassen, neue Abteilungen zu errichten. Wenn durch diese, wie mir 

 scheint, auch das System der lebenden Formen eine Klärung erfährt, 

 so wird dieser Umstand, wie ich hoffe, dazu beitragen, das neue System 

 auch denjenigen Zoologen annehmbarer zu machen, die noch iiiinier von 

 den ausgestorbenen Tieren nichts wissen wollen. 



2. Note on Shepheardella taeniformis Siddall. 



By J. S. Huxley, Oxford. 

 Witli 2 figures.) 



eingeg. 9. Juni 1910. 



This ditrematous Foraminiferan has only been twice previously 

 recorded, first by SiddalP, among Bryozoa, &c, from shallow water in 

 Great Britain, later by Schau dinn- in Foraminiferan sand from depths 

 up to 520 metres at Bergen. 



It is however, probably very widely distributed, for I have now to 

 record it from Naples. It must also be very easily adaptable, for of the 

 three specimens I have had, the first was from muddy Polymnia material 

 from the harbour of Mergellina (found by Mr. E. S. Goodrich, and 

 kindly handed over to me), the second from Ampluoxus sand, and the 

 third on the mantle of CAavelliiia from the port. 



I have to add the following points to Siddall s account: 



1) Colour. The specimen found on Clarellina was milk white 

 instead of the normal yellow-brown. After some time in captivity it 

 got yellower. 



2) Size. While the length of Sid d all's largest specimen was 7,5 mm, 

 that of mine was 10,5 mm, and its pscudopodia could be followed for 

 over 20 mm. 



3) B/Cproduction (Agamogony). One sj^ecimen, 7 inni long, was 

 accidentally torn in two. The half with the nucleus, after a few- days 

 without food, divided up during the night, leaving no residual protoplasm, 

 into between 550 and 600 young ones (Agametes). These were sub- 

 spherical, usually slightly elongated in the main axis, the protoplasmic 

 body varying in size from 33 X ^0// to 64 X 49 a; a very round one 

 measured 54 X 49 it. The main axis was marked, as in the adult, by 

 the two apertures of the shell. This was thin, flexible, and (juito trans- 



1 Sid dal], Quart. J. Micr. Sci. 20. 1880. p. 130. 



- Schaudinn, Bergens Mus. Aarbog 1894/95. no. 9. j). 4. 



