ART. 4 



SPONGES OF CALIFORNIA de LAUBENFELS 



15 



I doubt if quadriradiates should be cited as of normal occurrence. 

 In a few cases I have found small oxeas near the surface (fig. Q, A). 

 These are not certainly proper. Rather more often I find micro- 

 tylostyles about 5/* by 40/a (fig. Q, B). I interpret these as essen- 

 tially triradiates, with two rays almost entirely suppressed. In 

 some parts of some specimens I find curious microspined cylinders, 

 about 3/A in diameter, of variable lengths, with abrupt ends (fig. 

 G, H). It seems doubtful that they are proper spicules, or even 



Figure 6. — Leucetta losanyeleiisis (de Laubenfels), spicules, X300 



spicules at all ; but they should be mentioned. Some of the triradiates 

 are both alate and sagittal, these being, as usual, around the oscules. 

 RenvoLrhs. — The species closest here would seem to be that described 

 by Hozawa, 1929, as Leucandra solida. 



Family AMPHORISCIDAE Dendy 

 Genus RHABDODERMELLA Urban 



KHABDODERMELLA NUTTINGI Urban 



Rhnhdodermella nuttrnf/i Urban, 1902, p. 268. 

 Leucilla nuttingi Dendy and Row, 1913, p. 784. 



" Holofi/pe. — In the possession of Prof. F. Urban, Marienbad. 

 Czechoslovakia. 



Type locality. — Monterey Bay, Calif. 



