on K. mitst-kt-t;t : stt'dirs ox 



188('i, ]). 2\?>). "Die Stiit/.stalio dor raickonpapillcn iiiit diircli- 

 iriclu'i-tci' Auslii'citiiULi; an den Endcii. Ki-afti,i;or KalkiMu.LC. 

 I\)Li"selio Blascn und Steinkanale weclisehi in Zah! und Grosso 

 nil ell den l'\indplatzen der einzelnen Thiere ; dio PoLi'schen Blasen 

 in drr Zalil 2--G, selton einfaeh, die Steinkanale bilden jedei'seits 

 vom Mesenterinm einen Biiscliel von 8 — 30 Sfldauclion."" (Lampeet 

 1885, p. 86). Cokir lilaok or dai'k-liitnvn, sometimes with (i — 10 

 pairs of dark-brown spots on tiic l»ack. Body 35 em. long. 

 Those individuals witli the margin of the disk of the table 

 toothed, and witli tlie ti])S of papillae and pedicels black as the rest 

 of the body, have been distinguished as //. amhoinensis Semper or 

 var. amhoinensis Semper. Those witli the margin of the disk 

 smootli and with the tips of papillae and pedicels wliite, ar(> 

 supposed to belong to the species proper or are distinguislied as 

 var. affiiiis by Bedford. There are, however, said to be all stages 

 of intermediate forms. 



Bemurlis : — The specimens I have examined are black with a 

 tinge of purple. Smaller specimens preserved in stretched con- 

 dition brownish. Dorsal and ventral surfaces distinct. One of 

 tlu! specimens which 1 liad specially marked when living as 

 having '• ends of ])edicels white on account of end-plates " has 

 in alcohol lost this charactei'istic entirely. I regret that 1 did not 

 record a similar observation on another specimen ; in alcohol 

 they show no difl'erence from that which 1 marked. Hence it is 

 reasonable to conclude that whether the tips of pedicels are white 

 or not, can not be determined from alcoholic specimens. There- 

 fore, one of the supposed distinctions between H. atra and var. 

 amhoinensis can not be made out in preserved specimens. 



As to the tables, my preparations show that those from 

 one and the saine specimen are partly smooth on the disk 



