fill, the development of no less than 16 dilTerenl forms of Echinoderms 

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

 of April to the beginning of July 1911. A preliminary report on the 

 researches carried oul lliere was ])ublishe(l in Die "Annotationes Zool. 

 .laponenses" Vol. VI 11. 191 I ("On the development of some Japanese 

 Kchinoderms"). 



r>y tlic tinu' I iiad lo leave Misaki there were several good cultures of 

 larvai, wiiicli 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 Sydney. 

 X. S. Wales. This was carried oul partly successfully and an important 

 experience thus gained which was made useful at later occasions. 



During [hv lirsl stav in Australia, fiom the midillc of August to the 

 middle ol October, there was no oj^pori iiiiitx of making embryological 

 studies, no species being found lo have ripe products by that lime,') 

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

 ourable circumstances onboard the little steamer Tlinemoa". On an 

 excursion by land to Napier X. Z. numerous specimens of Arachnoides 

 placenid wcie found in a small lagoon; as they ap|)eared to he ripe, fertili- 

 zation was tried, although 1 had only a pocket lens with me and was thus 

 unable lo test the result. The supposed culture 1 then took along with 

 me in a jar to the 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 the 

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

 successfully during a forthnighl without any change of the water, — 

 Fertilization of the interesting Echinohiissus recenswas made in Wellington 

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

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

 bryos of Heliocidaris ciiilhnHjiammn. \ jireliminary report on the remark- 

 able shortened deveiopiiicid of I Ids lu'hinoid was |)ublished in I hi' Proceed- 

 ings of the Linnean Society of X. S, Wales (Vol. .\l.. 1915), 



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

 number of species, among which such interesting forms as Cohborentroius 

 and Hclcrorvnlrolus. Conditions were, however, not very favourable for 

 rearing the larva' beyond the younger stages. Al liu- place where the work 

 was carried oul (near I he HI lie lown llilo), the walei- (wliieh had lo be 

 taken from liie shore, no boal being available) not being as |)ure as desir- 

 able and [)erha|)s also less salt than desirable (on account of submarine 

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



') TluTi' may havf lioeii soiiu' species with ripe sexual products by the midille of .\u- 

 gust, but I had uo lime lur lualviug such studies jusl then. 



