Benham. — Nudibraiich MuVuscs from Nttv Zealand. 313 



In the interests of students of zoo-geography and local faunas, 

 zoologists ought to protest against this sort of mixture of localities 

 under a title which indicates, if words mean anything, that the 

 contents were collected during an expedition to the Philippine 

 Islands. 



However, I have to thank Dr. Bergh for naming and de- 

 scribing these specimens, and for sending me proof-sheets of that 

 part of his valuable ' Untersuchungen " that deals with our 

 species. It would have been useful to have reproduced his 

 figures, but I understand from Mr. Hedley that the only figure 

 of an entire animal is reproduced from a sketch of Atagema 

 carinata that I forwarded to Bergh ; the remaining figures refer 

 only to differences of internal anatomy — many of them of micro- 

 scopic detail. 



In addition to six species the description of which is given 

 in the translation below, Dr. Bergh named for me five other 

 nudibranchs, of which one is Goniodoris castanea, Alder and 

 Hancock, which is thus shown to have a very wide distribution, 

 as it occurs on the British coast. Of the remainder, two new 

 species of Chromodoris, a new species of Doriopsilla, and one of 

 Aphelodoris were included in those I sent him, but, as I do not 

 know whether he has yet published a description of these new 

 species, I refrain from giving the specific names at present. 

 These four new species and some of the others were obtained 

 during the two trips of the s.s. " Doto " in which Mr. Ayson, 

 Inspector of Fisheries, conducted a series of experimental 

 trawlings in the years 1900 and 1901, when a considerable 

 number of new and rare species of most groups of invertebrata 

 were obtained. 



Of the two new species of Chromodoris, one was obtained 

 off the Mahia Peninsula, Hicks Bay, on the east coast of the 

 North Island ; the other between Kaipara and New Plymouth, 

 where, too, the Aphelodoris was caught : these were carefully 

 preserved by Mr. Hamilton. The Doriopsilla was dredged from 

 30 fathoms in Tasman Bay, in 1900, when Mr. G. M. Thomson 

 was superintending the collection of invertebrates. 



One of the most interesting of the molluscs described below 

 is Homoiodoris novos-zealandio?, since the only other species of this 

 genus occurs in the Japan Sea. We have several other similar 

 facts of distribution amongst our marine invertebrata. I refer, 

 for example, to the peculiar little enteropneust Dolichoglossus 

 otagoensis, Benham,* with its grooved proboscis, which is only 

 known in one other species (D. sidcatus, Spengel, from Japan). 

 Again, the polynoid Physalidonotus squamosus, Qtfgs. (or Lepi- 



* Trans. N.Z. Inst., 1899, p. 9. 



