FIGURE 11 in Crinoids of the stalked family Hyocrinidae (Echinodermata) collected by the USNS Eltanin in the Southern Ocean

FIGURE 11. Architecture and articulations in Ptilocrinus brucei pinnules. A–B: genital pinnule inflation in specimen USNM 1005439; A: proximal part, B: distal part; C–D: specimen USNM 1005438; C: proximal part with multiplated adoral skeleton covering female gonad (g); D: detail of gonad showing submature oocytes; E–I: specimen USNM 1005439; E: proximal muscular synarthry of Pn2; F: aboral distal view of Pn2; G: proximal synostose of Pn3; H: pinnule broken proximally to Pn4 (cv: cover plates, Pn: pinnular, arrow indicating convex side of genital inflation); I: proximal synostose of asymetrical Pn4 (adoral plates removed, orientation like in H).Published as part of Roux, Michel, 2015, Crinoids of the stalked family Hyocrinidae (Echinodermata) collected by the USNS Eltanin in the Southern Ocean, pp. 381-409 in Zootaxa 3990 (3) on page 398, DOI: 10.11646/zootaxa.3990.3.4, http://zenodo.org/record/24304