Plate 5 

 Cellaria vitrimurahs, new species, and C. nioniliorata, new species i 



(All figures except figure F drawn with aid of camera lucida) 



Figure A: Cellaria vitrimuralis, new species. Enlargement of portion of oviceiiec 

 colony, showing length of proximal parts (pz) of some zooecia and distal parts of others 

 salient thin glasslike walls (w), frontal transparency, and relation of the ovicells (ov) t( 

 the zooecia. Hexagonal areolation is plain and superficial. Inner walls (l) of zoids do noi 

 parallel the outer hexagonal pattern (w). Scale a. 



Figure B: C. vitrimuralis. A slighth' tipped frontal, top, and one side view of an oper- 

 culum and its attached musculature, flattened plates and flange or rim. Scale b. 



Figure C: C. vitrimuralis. Frontal view of operculum, with one of muscle plates show 

 ing, the other having been broken off in dissection. Scale h. 



Figure D: C. vitrimuralis. Operculum from the right side, showing the muscle plat« 

 (mp) and the flange (f). Scale b. 



Figure E: C. vitrimuralis. View of nonovicelled fragment of colony and of joint or nodi 

 area. The deep yellow or amber color of inner walls at joints shows through transparen- 

 outer wall. No tangle of rootlets present at intersection of branches of this species. Scale f 



Figure F: Cellaria moniliorata, new species. Free-hand sketch of growth habit. 



Figure G: C. moniliorata. Stereogram of broken end of branch. Zooecia grouped ii 

 transverse linear rows of four. At this le\'el the four larger zooecial cavities belong to th- 

 zooecia of one series while the four smaller cavities belong to zooecia of a second series. 



Figure H: C. moniliorata. Operculum in place in orifice. Parenthesis-shaped scleritei 

 on each side of the orifice. Rim of orifice indicated. 



Figure I: C. moniliorata. Node of colony showing tangle of yellow radicle fibers a 

 junction of the three internodes. Zooecial surface pebbled or covered over with smal 

 beadlike bumps. Beaded cryptocyst ridges show best in right-hand branch and in basa 

 zoid. Scale d. 



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