464 



Grantia mirabilis. 

 Amphoriscus glacialis. 

 These species were published respectively by Haeckel 

 (Die zweite deutsche Nordpolarfarht 1874), and by Fris te dt 

 (Vega-Exp. vetensk. lakttag. IV, 1887). Breitfuss has published 

 at list of the arctic Calcarea in which their distribution in the 

 various subregions are given (Mém. de TAcad. Imp. de St. Pe- 

 tersb. VI, 1898, 7), and here he has under «Öst-Grönland» 

 Sixten species, but this is erroneous, as there were at that 

 time only known the above mentioned four species; Breitfuss 

 has evidently made the error of counting all at that time known 

 species, both from West- and East- Greenland as East- 

 Greenlandic. In the same authors "Katalog der arktischen Kalk- 

 schwämme" (Arch, für Naturgesch. 1898, 19) he also gives the 

 locality East- Greenland only to the four species enumerated 

 above. 



Myxospongida. 



Fam. Halisarcidae. 



Halisarca Dujardin. 



H. Dujardini Johnst. 



1842. Halisarca Dujardini Johnston, Brit. Spong. and Lithophyt. , 192, 



PI. XVI, fig. 8. 

 1874. — — , Haeckel, Die zweite deutsche Nordpolai fahrt, 



II, 2, 436. 

 This species is not present in our collections, but it has 

 been taken at East- Greenland, North -Shannon (Die zweite 

 deutsche Nordpolarfahrt; Haeckel 1. с). 



