66 K. :\riTRT'KTTiT : STUDIES ox 



1880, ]x 21o). " Dio Stützstälio (lor Eiiokonpapillon mit dnroh- 

 löcherter Ausbreitung an den Enden. Kräfti<j;or Kalkring. 

 PoLi'sclio Blasen und Steinkanäle wechseln in Zalil und (Irösse 

 nacli den Fundplätzen der einzelnen Tliiere ; die PoLi'schen Blasen 

 in der Zalil 2 — 6, selten einfach, die Steinkanäle bilden jederseits 

 vom Mesenterium einen Büscliel von 8 — 30 Schläuchen." (Lampeet 

 1885, p. 86). Color black or dark-brown, sometimes with (! — 10 

 pairs of dark-brown spots on the l)ack. Body 35 cm. long. 

 Those individuals with the margin of the disk of the table 

 toothed, and with tlie tips of papillae and pedicels black as the rest 

 of the liody, have been distinguished as II. amhoinensis Semper or 

 var. amhoinensis SempePi. Those with the margin of the disk 

 smooth and with the tips of papillae and pedicels white, are 

 supposed to belong to the species proper or are distinguished as 

 var. a finis by BEr>F0Rr). There are, however, said to be all stages 

 of intermediate forms. 



BemarLs : — The specimens 1 have examined are black with a 

 tinge of purple. Smaller specimens preserved in stretched con- 

 dition brownish. Dorsal and ventral surfaces distinct. One of 

 the specimens which 1 had specially marked when living as 

 having " ends of pedicels white on account of end-plates " has 

 in alcoliol lost this characteristic entirely. I regret that [ did not 

 record a similar observation on another specimen ; in alcohol 

 they show no difierence from that which 1 marked. Hence it is 

 reasonahle to conclude that whether tlie tips of pedicels are white 

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

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

 (imhoinensis can not be made out in preserved specimens. 



As to tlie tables, my preparations show that those from 

 one and the same specimen are ]iartly smooth on the disk 



