Subject ASC00004fz
Hardwicke's science-gossip : an illustrated medium of interchange and gossip for students and lovers of nature.
v. 17 (1881), Page 157 (1881)
MBLWHOI Library
BHL Page 1973018
Keywords
sponge development amphisblastula stage cells endoderm gastrula ectoderm spicules osculum pores marine stages free cilia fixed larva amoeboid young Sponge