56 PROCEEDINGS OF THE NATIONAL MUSEUM vol.81 



can not say exactly where it ends. I find no tendency for it to spread 

 out fanlike. In the choanosome are relatively large and rather few 

 spicules. Histological details: The flagellate chambers are roundj 

 diplodal, 40/A to 50/x diameter. 



Principal spicules, dull-pointed tylostyles (fig. 27) ; size 10/a by 

 200/i to 50/i by 1320jLt. 



Remarks. — One finds a tendency to pedunculate form very common 

 in Ficulina suberea. It is therefore to be expected in Suberites. A. 

 species having very similar shape to that of gadus is described by 



o 



A ^ ^ 



C 



Figure 27. — Suberites gadus de Laubenfels, X300. A and B show size for 

 the smaller spicules, and shape for all ; G, portion of the shaft of one of 

 the larger spicules, illustrating its proportionate size to the smaller ones 



Wilson (1925, p. 352) as Rhizaxinella nuda^ from the Philippines. 

 It was more brownish than gadus^ had spicules about half again 

 as large as those of gadus and with sharper points, and its stem 

 lacked the ectosomal crust. The two are doubtless closely related. 



Order HALICHONDRINA Vosmaer 



Family AXINELLIDAE Ridley and Dandy 

 Genus HALICHONDRIA Fleming 



HALICHONDRIA PANICEA (Pallas) 



Sponffia panicea Paixas, 1766, p. 388. 

 Halichondria panicea Johnston, 1842, p. 114. 



Holotype. — Location unknown. 



Type locality. — Europe. 



Material examined. — Specimens w^ere collected at Point Pinos, Pa- 

 cific Grove, Calif., intertidal, on January 24, 1929, by J. E. Lynch, 

 who reported it then plentiful. During the summer months it has 

 been very rare or lacking, though on July 14, 1929, I found a small 

 specimen at the same locality as that given by Mr. Lynch. In Euro- 

 pean waters this sponge is very abundant intertidally, and the same 

 or a very similar species is reported from nearly every part of the 

 world's coastal regions that have been well studied. 



Description (U.S.N.M. No. 21447; B.M. No. 29.8.22.9).— Shape, 

 amorphous, encrusting. Size, up to 6 mm thick, 3 cm in diameter. 



