Botifera of Nav Zealand. By J. Murray. 583 



It appears as though insular faunas of Bdelloids were poor 

 compared with those of continental masses of land. Great Britain 

 seems to be an exception to the rule, but that may be because it 

 is not isolated like New Zealand. The poverty of New Zealand 

 may be partly due to the difficulty of migration. 



There are thirty-three Bdelloids recorded as common to New 

 Zealand and Australia, but nearly all of these are cosmopolitan 

 species. There is besides a small Australasian element in New 

 Zealand, some three species and one variety occurring in both 

 Australia and New Zealand, and not elsewhere. 



There are only some half-dozen other species in New Zealand 

 whose range is so limited that it is worth while indicating it. 

 Microdina paradoxa and Botifcr curtipes are only known in New 

 Zealand and Europe — Mniobia scabrosa is also in Australasia and 

 Africa — Scephanotrocha rubra in Europe, North America, and 

 Australasia. Habrotrocha perforata and Adineta longicornis are 

 characteristic of tropical and sub-tropical countries, but the former 

 has been found in Switzerland, and the latter in the Antarctic and 

 Canada. 



Bhizota and Bloima. — General questions of distribution of 

 Piotifera. other than the Bdelloida, will not be discussed, as they 

 were not systematically collected, and the material available is 

 insufficient. Twenty-six forms were recognized, but many others 

 were seen. Seven of these are in Hutton's list (-5), so that nine- 

 teen appear to be new records for New Zealand. 



Bibliography. 



1. Bryce, D. — Non-marine Fauna of Spitsbergen : Eotifera. Proc. Zool. Soc. 



Lond. (1897). 



2. , A New Classification of the Bdelloid Itotifera. Journ. Quekett 



Micr. Club (1910) p. 61. 



3. Hilgendorf, F. AY.— Eotifera of New Zealand. Trans. New Zeal. Inst., 



xxxi. (1898) p. 107. 

 4 Rotifera of New Zealand a revised and expanded 



list. Op. cit., xxxv. (1902) p. 267. 



5. Hutton, F. W— Index Faunae Nova? Zealandise London, 1904. 



6. Jennings, H. S-— Rotatoria of the United States. U.S. Fish. Comm. 



Bull. (1900, for 1899). 

 7 Lord, J. E.--A New Rotifer ( Klosa WurralUi). Inter. Journ. Micr. and 

 Nat. Sci., ser. 3 i. p. 323. 



8. Richters, F.— Moosfauna Australiens, etc. Zool. Jahrb., Abt. f. Syst., 



xxvi. (1S08) p. 196. 



9. Roussklet, C F.— On the Geographical Distribution of the Eotifera. 



Journ. Quekett Micr. Club (1909) p. 465. 



10. Schmarda, L.— Neue wirbellose Thiere (Leipzig, 1859). 



11. Stock. — A New Zealand variety of Floscularia corom tta. Trans, and Proc. 



New Zeal. Inst., xxv. (1893) p. 193. 



