PLATE 40. 



Illtjsteatite of Dk. Pekcetal "^'^eight's Paper ''0:s a Kew Gextjs 

 AJTD Species of Spoj^ge." 



Vide Proceedings E. I. Acad., YoL 2, Ser. 2, p. 754. 



Fig. 1. Kalispongia Archeri, gen. et spec, nov., x 50 (side view). 



2. „ ,, front view of head portion, x 50, of 



another specimen. 



3. ,, ,, stem portion of an apparent variety, 



X 50. 



4. ,, ,, portion of tissue of stem, x 250, 



5. ,, ,, ,, ,, of head, x 250. 



R. I. A. fROC, S£K. II:, VOL. II., SCIEXCt; 



