1905.1 



SPONGE CLATHRINA CONTORTA. 



Text-fig. 5. 



15 



Spicules of Leucosolenia, Sycon, and Clathrina. 

 Figg. 7 «-7 I. Spicules of a specimen in Norman's collection, received from Bower- 

 bank witli label Leucesolenia contorta and identified by Haeckel as Asccmdra 

 contorta ; showing- spicules of Leucosolenia variahilis (7 ct-^ j), mixed with 

 spicules of Sijcon sp. (7 A', 7Z). — Figg. 8a-8w. Spicules of a specimen in 

 Norman's collection received from Bowerbank with label Leticosolenia contorta ; 

 showing spicules of Leucosolenia complicata (8 a-SJ) mixed with spicules of 

 Clathrina coriacea (8Je-8m). 



