22 



J. LINDAHL, 1'ENNATULID-SLÄGTF/r UMBELLULA CW. 



P. S. 



When the precediiig was already being piintrd, Professor Kölliker sent me his: »VorWinfige Mittheilung 

 iteöer de» Bau tind (lie sygtematisclte Stelhimj der Gattiuuj UMBELLULA.RIA», Winzburg 2 Mai 1874; in whicli 

 paper he gives a short preliminary account of lus examination of the Urabellula of the (-'hallenger-Expedition 

 (U. sp. 4.? n.). 



Professor Wyvii.le-Thomson has sent him two specimens, both of theni taken between the eoast of Portugal 

 and Madeira in a depth of aboiit 2120 fms. They are, no doubt, specitically different from U. miniacea and U. 

 pallida, their principal characters being, as far as may be judged from the short description: 



UMBELLULA THOMSONII Kölliker (sp.) 



The bodies of the pol3'pes longer than their teutacles, the relation being about 100 : 89, zoöids also on 

 the dorsal side of the rachis; calcareous spicules oceurring in difterent parts of the sarcosoma. 



Thus the absence of dorsal zoöids and the entire want of calcareous spicules in my specimens prove to 

 be merely specific characters. 



Professor Kölliker also pronounces his opinion, that Umbellula and Crinilluni constitnte a new family, 

 closely allied to the Bathyptilere. 



According to a letter from Professor Wv ville-Thomson, published in the wNaturc» of the 25:th June 

 1874, the Challenger-Expedition has again brought up specimens of an Umbellula, when trawling between Prince 

 R(l\vard's Island and the Orozets (Kerguelen's Land), depth 1375—1500 fms.. December 29:th and 30:th 1873. 



