260 Transactions. 



to the European form ; and Mtea recta, Arctic and Europe, 

 closely related to M. anguina. 



The nudibranch mollusc Goniodoris castanea occurs in New- 

 Zealand and Britain. The genus Homoiodoris has only two 

 known species — one (H. neozelanicus) occurs in New Zealand, 

 and the other in Japan. 



The enteropneust Dolichoglossus otagoensis, Benham, has a 

 grooved proboscis, " which is only known in one other species 

 (D. sulcatus, Spengel) from Japan ; and the polynoid Physali- 

 donotus squamosus {Lepidonotus giganteus, Kirk) represents pecu- 

 liarities, indicated by its generic name, that have hitherto only 

 been noted in two Japanese polynoids, recently described by 

 Moore as Lepidonotus branchiferus and L. chitoniformis, but 

 which probably should be included in Ehler's new genus just 

 mentioned." (Benham.) 



A sea-star from Japan closely allied to our common littoral 

 form Asterias calamaria has been described by Doederlein under 

 the name A. calamaria, var. japonica* The New Zealand 

 species occurs also on the east coast of Australia and in 

 Mauritius. 



Although there is but little evidence for bipolarity in our 

 land fauna, the fresh-water fauna contains many bipolar forms. 

 Retropinna richardsoni is the southern representative of the 

 smelt of northern Europe and America. 



Of the 130 species of Infusoria given in the " Index Faunao," 

 no less than eighty-four are said to be identical with European 

 forms. I cannot say that these identifications are correct, but 

 Maskell, who was a good observer, and had a great deal of ex- 

 perience in the determination of microscopic forms (Desmidece, 

 Coccidw, and Aleurodidce), told me shortly before his death that, 

 on account of doubts expressed by a European naturalist, he 

 had reviewed his identifications, and had concluded that our 

 species could not be separated from those of Europe. 



Of the forty-two species of Rotifera recorded from New Zea- 

 land, thirty-four are European. 



The fresh-water sponge Spongilla lacustris occurs in our 

 streams and lakes, and also the common European hydra (//. 

 viridis), and a species of Cordylophora, which, if not identical, 

 is nearly related to C. lacustris. 



" The fresh -water shell Latia, which is living in New Zealand, 

 is fossil in North America. It is closely related to Gundlachia, 

 which inhabits Tasmania and North America .... The 

 fresh- water spider Cambridgea is almost identical with Argy- 

 roneta of Europe." (Hutton.) 



* Zool. An/.., xxv. p. :532. 



