OPHLITASPONGIA. 187 



Genus 30. OPHLITASPONGIA, Bow. 9 n, 14. 



1. OPHLITASPONGIA PAPILLA, Bow., n, 378 ; in, PL LXX, 

 figs. 1 4. 



1867 Opliistospongia papilla, Gray. Proc. Zool. Soc., 1867, 



p. 515 (misprint). 

 1870 Clathria (?) papilla, Schmidt. Spong. Atlant. Geb., p. 77- 



" I received a fine specimen of this rare species of 

 sponge for examination from the Kev. A. M. Norman. 

 It was found at tidemark, Westport Bay ; it was two 

 and a half inches long by one inch and a half wide, and 

 had sixteen papilla. The basal mass did not exceed a 

 quarter of an inch in thickness, and it had evidently 

 been adherent to a rock or slab of stone." 



2. OPHLITASPONGIA SERIATA (Grant), n, 376 ; i, PI. 

 XVII, fig. 287 (as Chalina seriata) ; in, 167, 

 PL LXV, figs. 1 4 (as Oplilitaspongia seriata). 



1861 Haliclona seriata, Bow. List. Brit. Marine Invert. 



(Brit. Assoc.), p. 71. 

 1867 Seriatula seriata, Gray. Proc. Zool. Soc., p. 515. 



This sponge is found in abundance coating shells, 

 especially those of Pecten varius, while still alive in a 

 few fathoms of water just inside the lighthouse at the 

 entrance of Westport Bay, Co. Mayo. The sponge 

 grows much more luxuriantly in this locality than I 

 have met with it elsewhere, being thicker and more mas- 

 sive, and the oscula of much larger size than usual. 

 On two young sponges from this same locality, Dr. 

 Bowerbank has left the following note : " Among the 

 specimens sent to me for examination by the Rev. A. 



