216 Ernst Østrup. 



Lo с. Off Cape Amélie (Algæ, 3 sampl.), Danmarks Havn (Algæ), OfFCape 

 Bismarck (Algæ), Koldewey Isl. (Algæ, 2 sampl.). 

 Arct. Distr. Greenl., East Arct. S. 



Achnaiithes brevipes Ag. var. intermedia Kütz. V. H. Trt., 1. с. 

 fig. 325 (Achn. subsessilis Ehr.). 



Log. Off Cape Amélie (Algæ, 3 sampl.), Danmarks Havn (Algæ), Koldewey 

 Isl. (Algæ). 



Arct. Distr. E. Greenl., East Arct. S. 



Achnanthes brevipes Ag. var. parviila Kütz., V. H. Trt. 1. c. 

 fig. 326 (Achn. parvula). 



Lo c. Off Cape Amélie (Algæ, 2 sampl.). 

 Arct. Distr. Greenl. 



Achnanthes brevipes Ag. var. forma elliptica, Øst. Kystd. f. 

 Grönl., Tab. II, fig. 13. 



Lo c. Off Cape Amélie (Algæ), Koldewey Isl. (Algæ, 2 sampl.). 

 Arct. Distr. E. Greenl. 



Achnanthes groenlandica Cl., Cl. Syn., II, 195; Cl. A. D., Tab. IV, 

 fig. 23. 



Lo c. Off Cape Amélie (Algæ), Koldewey Isl. (Algæ). 

 Arct. Distr. Greenl., E. Arct. S. 



KALYPTORAPHIDEÆ. 



Eschatoraphideæ. 



Siirirella Turp., 1827. 



Surirella insignis sp. nova. Tab. nost. XIII, fig. 19. 

 Long. 137^. Lat. 54 «. Canaliculis 1,5 in 10/^. Striis subtilissimis. 

 Valva ovata, area apicali angusta. Striis delicatissimis, vix per- 

 spiciendis. 



Lo c. Danmarks Havn. 



As I have not seen this species in zone-view I am uncertain of its 

 systematic position. Possibly it may be considered a robust form of an 

 unnamed Surirella from "Hayes Exp." figured in A. S. Atl., Tab. XXI, fig. 15, 

 which I have recorded from E. Greenl (cf. Ost. Mar. D. Østg., p. 334). 



Surirella Oestrupii Gran., Gran., F.N.Exp., 46; Øst. Mar. D. 

 Østg., Tab. VI, fig. 68 (Sur. splendida var? minima). 

 Lo с. Off Cape Amélie (Algæ). 

 Arct. Distr. E. Greenl., E. of Greenl., East Arct. S. 



