ful, the development of no less than 16 different forms of Echinoderms 

 being studied more or less completely during the stay there from the end 

 of April to the beginning of July 191 1. A preliminary report on the 

 researches carried out there \vas published in Ihe "Annotationes Zool. 

 Japonenses" Vol. VIII. 1911 ("On the development of some Japanese 

 Echinoderms"). 



By the time I had to leave Misaki there were several good cultures of 

 larvae, which I was very sorry to leave behind and I resolved to try to carry 

 some of them along with me to the next place to be visited, namely Sydne\ . 

 N. S. Wales. This was carried out partly successfully and an important 

 experience thus gained which was made useful at later occasions. 



During the lirsl slay in Australia, from the middle of August to Ihe 

 middle of October, their was no opportunity of making embryological 

 studies, no species being found to have ripe products by that lime. 1 ) 

 In New Zealand a few species were reared successfully under very unfav- 

 ourable circumstances onboard the little steamer "Ilinemoa". On an 

 excursion by land to Napier N. Z. numerous specimens of . I n/r/imm/r.s 

 placenta were found in a small lagoon; as they appeared to be ripe, fertili- 

 zation was tried, although I had only a pocket lens with me and was thus 

 unable to tesl Ihe result. The supposed culture I then took along with 

 me in a jar to Ihe interior of the country, carrying also a jar with pure 

 seawater for eventually transferring the young embryos. These were found 

 swimming at the surface the next day, and being then transferred to Ihe 

 other jar they went on developing normally, and Ihe culture was kept 

 successfully during a foiihnighl without any change of the waler. 

 Fertilization of the interesting Echinobrisxux mrm was made in Wellington 

 on the day before the departure; the culture was brought succesfully lo 

 Sydney. On Ihe return hereto opportunity was found of rearing the em- 

 bryos of Heliocidaris erylhrogramma. \ preliminary report on Ihe remark- 

 able shortened development of this Echinoid was published in I he Proceed- 

 ings of the Linnean Society of N. S. Wales (Vol. XL. 191.")). 



On Hawaii, the nexl place visited, fertilization was made of quite a 

 number of species, among which such interesting forms as Colobocentrotus 

 and Helerocenlmliis. C.oudi lions were, however, not very favourable foi- 

 l-earing the larv;e beyond Ihe younger slages. A I the place where the work 

 was carried out (near the little town Hilo), the waler (which had lo be 

 taken from the shore, no boat being available) nof being as pure as desir- 

 able and perhaps also less salt than desirable (on account of submarine 

 springs, which abound in several localities along the coast of the island 



M There may have been some species with ripe sexual products by the middle ol Au- 

 "usl, but I had no lime lor making siu-h studies jiibt then. 



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