ART. 4 SPONGES OF CALIFORNIA DE LAUBENFEL.S 1 1 



Type locality. — Monterey Bay, Calif. I have not succeeded in 

 finding this species in the field, in spite of very careful search in 

 the type locality. 



Descri'ption. — This is a noncolonial, flask or vase-shaped sponge, 

 about 5 mm in diameter and 6 mm high. The color is white. There 

 is an erect oscular crown. The chamber system is of the second type 

 (sycon). There are oxea of the oscular fringe, size 3;u, by 500/a to 

 10/x by 500ju,, and of the choanosome, size 35ju, by l,O00ju, and less, 

 and microxeas about 2;U, by 40;U, in the walls of the radial tubes and 

 pseudogastral layer. The latter two locations are also supplied with 

 triradiates and quadriradiates, rays about lO/x by 90/t. The triradiates 

 are usually sagittal. 



Reinarks. — Urban fails to explain how this differs from the numer- 

 ous other Sycons or Sycandras. It seems to differ from Sycon 

 coronat%uii in its microxea and in the lack of dermal tufts over the 

 distal ends of the radial tubes. 



SYCON CORONATUM (Ellis and Solander) 



Spongia coronata Ellis and Solander, 1786. 



Grantia ciliata Bowerbank, 1864, according to Haeckel, 1872. 



Sycandra coronata Haeckex, 1872. 



Sycon coronatum Dendy, 1892. 



Holotype. — Location unknown. 



Type locality. — Europe. Haeckel (1872, vol. 2, p. 305) lists this 

 species as from California, Brown. The species is cosmopolitan, 

 but I have not found it in California. 



Description. — This is a single cylindrical individual (noncolonial), 

 usually 3 mm by 10 mm to 7 mm by 30 mm in diameter and height. 

 Unless soiled it is white. The canal system is of the second, or 

 sycon, type. There are many triradiates and quadriradiates, both 

 regular and sagittal or alate; the single rays are often 0.007 mm by 

 0.14 mm in size. There are large oxea (about 0.02 mm by 1 to 2 

 mm) in tufts on the surface, particularly over the outer ends of 

 the lateral diverticula of the pseudogastral cavity. The oscule is 

 crowned with an erect spicular fringe. 



Family GRANTIIDAE Dendy 

 Genus LEUCONIA Grant 



LEUCONIA SAGITTATA (Haeckel) 



Leticetta sagittata Haeckei., 1872, p. 12o. 

 Leucandra sagittata Dendy and Row, 1913, p. 774. 



Holotype. — Location unknown. 



Type locality. — Pacific coast of North America (California, 

 Brown). 

 Descnptlon. — A mass of branching and anastomosing tubes 35 



