Fig. 5
From: On gonadic maturation and reproductive strategy in deep-sea benthic octopus Graneledone macrotyla
Graneledone macrotyla. Mature female No MDMG68B2011. a External aspect of an oocyte type S3 showing longitudinal striae and micropyle; b longitudinal section of that oocyte, Ecm epithelial cell membrane, fmc follicular cell membrane, v vitellus, c oocyte S3; d, longitudinal section of oocyte S3 showing fmc and chorion (ch); e detail of the chorion