Ingolf Expeditionen IV. 2. 



Tit. Mortensen. Echinoidea II. Tab. IV. 



Th. Bloch et Pacht & Crone fol. 



Wicht & Crone phototyp. 



Brissopsis lyrifera (Forb.), elongata n. sp.. Brissopsis sp. Hemiaster expergitus Lov. 



