429 



Monaxonida, 



Halichondrina. 



Fam. Homorrhaphidae. 



Chalioa Grant. 



С. groenlandica Frstdt. 



1887. Chalina groenlandica Fristedt, Vega-Exp. vetensk. lakttag. IV, 417, 



PI. 23, flg. 19. 

 1902. — - , Lundbeck, The Danish Ingolf-Exp. V), 1, 13. 



This species was taken at East-Greenland, depth 140 fathoms, 



on the Swedish arctic expedition 1883 (Fristedt 1. c). 



Halichoodria Fiem. 



H. panicea Pall. 



1842. Halichondria panicea Johnston, Brit. Spong. and Litoph. 114, PI. X, 



Pi. XI. flg. 5. 



Of this common and cosmopolitan species there are in the 

 collections some small specimens, growing on Bryozoa and 

 Hydroids; the largest specimen is somewhat massive, of a 

 greatest extent of about 30 mm; some of the specimens growing 

 on the Hydroids are of a quite ovular shape, much resembling 

 specimens of Mycale ovulum; these specimens have a size of 

 only 8 mm. The oxea are of quite the typical shape, of a length 

 of up to 0"50 mm. 



Tasiusak 2^/5 and Чв 1899, depth 26—30 fathoms (The Am- 

 drup-expedition 1898—99); Hurry Inlet ^^/т 1900, depth 20 fathoms 

 (The Amdrup-expedition 1900). The species was hitherto not 

 known from East-Greenland. 



H. fibrosa Frstdt. 



1887. Amorphina fibrosa Fristedt, Vega-Exp. vetensk lakttag., IV, 426, PI. 



24, figs. 11-12. 

 1902. Halichondria fibrosa, Lundbeck, The Danish Ingolf-Exp. VI, 1, 20, 



PI. IX, figs. 3 a, b, с 



This species is represented by about ten specimens; they 



form irregular, often lengthy lumps. The oscula are conically 



spout-shaped. The specimens show generally very distinctly 



28' 



