LATTICE WORKERS, OR POLYCYSTINA. 71 



so as to have been permeated by the sarcode sub- 

 stance during growth ; sometimes, instead of becom- 

 ing finely attenuated, they become bulbous at their 

 points, and these bulbils swell, become cellular or 

 foraminated, and assume very much the appearance 

 as if they were buds from the parent, and intended to 

 break forth and commence life as fresh individuals." 

 " Very remarkable instances are seen in those forms 

 in which a central spheroid body is enveloped by a 

 sort of fine siliceous web or sponge, which gradually 

 breaks away, as the centre sends forth stalks (three to 

 six, but normally four) celled and chambered as com- 

 plicately as any foraminifer ; and pushing their way 

 through the sponge-like envelope, and beyond it, 

 their ends become club-shaped, often strongly spiked 

 at the extremity, but the swollen part, containing 

 what looks like a reduplication of the- central parent 

 form ; and these seem as if they might possibly break 

 away, and become in their turn centres of growth." 



" But though some are symmetrical, or nearly, they 

 are by no means universally so : in fact, the greater 

 number display the most grotesque polymorphism. 

 For instance, you find one with the flowing outline 

 of some elegant Etruscan vase, with a tapering base ; 

 the next specimen you see may have ugly nose- 



may be said to be made up." Wallich : " Ann. Nat. Hist " 

 (1864), p. 81. , 



