86 
(undescribed species, according to kind information of Dr. E. Mar¬ 
cus, who has also identified the above named form for me.) It has 
a most remarkable superficial resemblance to a Rhizocrinus, and 
someone not very familiar with these forms might well mistake 
it for this Crinoid. 
One of the reasons, why I wished especially to investigate the 
fauna of the Sunda Strait, was, indeed, the quesrion whether Rhi- 
zocrifius was to be found here. According to Kor ot ne ff ) it was 
formerly found here in the relatively shallow water of only ca. 30 
Meters. It would be very interesting to see, whether it had now 
established itself here again, after having — probably — been 
exterminated by the ashes and pumice from the Krakatau eruption. 
As I did not succeed in finding it there, in spite of the fairly exten- 
sive dredgings that were made, it would appear that it has not yet 
succeeded in establishing itself here anew if, indeed, the state¬ 
ment of its occurrence here in former times does not rest on a mis¬ 
take. Since dredgings in this region had by the time of Korot- 
neff’s visit there been undertaken only by SI u i ter, the state¬ 
ment of Korotneff (— „Jadis, å eet endroit (ville d’Anger) on 
trouvait aisément de grands Rhyzocrinus, maintenant, le fond de la 
mer est complétement couvert de cendres et de limon et il est 
inutile de songer å y faire une capture scientifique“ —) might be 
expected to rest on informations, which he had received from 
Sluiter. Asking Professor Sluiter about this matter, I was 
informed by him that he never found Rhizocrinus there and accord- 
ingly never told Korotneff about it. On the contrary, he informs 
me that direetly after the publication of Korotneff’s „Compte 
rendu“ he wrote to him asking him from where he had this in¬ 
formation about Rhizocrinus, but never got an answer to that 
question. Thus it seems fairly evident that this statement of the 
former occurrence of Rhizocrinus must rest on a mistake. Were it 
not for the expression „grands Rhyzocrinus“, I should be inelined 
to think that the statement rested on the named Bryozoan, Stirparia 
having been mistaken for the Crinoid. Anyhow, this statement of 
the (former) occurrence of Rhizocrinus here in so shallow water as 
1) A. Korotneff. Compte rendu d’un voyage scientifique dans les Indes 
néerlandaises. Buli. Acad. R. de Belgique. 3. Sér. XII. 1886. 
