Bryozoa. 451 



Escharella labiata Boeck Ч 



(PI. XX, figs. 3, 4, 5, 6, 7, 8, 9). 



The zooecia are large, ovate, densely granular, very much convex 

 and surrounded by (1 — 3) rows of small marginal pores. The sur- 

 face is strongly ascending towards the aperture, the proximal por- 

 tion of which is very much projecting, spout-shaped; a short way 

 within its free margin is seen a very broad, low median tooth. The 

 distal margin is armed with 2 — 3 spines, and there is found a strongly 

 developed, proximally and basally directed vestibular arch, the free 

 margin of which is triangularly rounded and on each side provided 

 with a more or less distinct incurvation. Its length is contained 

 4 — 5 times in that of the whole zooecium. The very convex cap- 

 shaped granular ooecia, which, when the colony is regarded from 

 the frontal surface, present an almost semi-circular outline, are set 

 far aback, their longitudinal axis being directed obliquely towards 

 the basal wall. Each of them is developed from a distal zooecium, 

 and not as in E. abyssicola from a Kenozooecium. Between the 

 ooecium and the aperture is found a short obliquely inwards directed 

 spine on each side. The three original pore-chambers are as in 

 most species divided into a large number of small chambers. 



Two small pieces on the rudiments of a shell. 



St. 63, Stormbugt, 20—40 m. 



Escharella abyssicola Norman. 



Miicronella abyssicola Hincks, Op. cit. p. 369, PI. XXXVIII, figs. 1, 2. 

 Macronella laqiieata Hincks, Op. cit. p. 368, PI. LI, fig. 8. 

 Escharella abyssicola Norman, East Finmark, Polyzoa, Annals Nat. 

 Hist., S. 7, Vol. XII, p. 117. 

 — — Levinsen, Cheilost. Bryozoa p. 315. 



(PI. XX, figs. 10, 11, 12, 13, 14). 



The zooecia are ovate or rhombical, more or less convex, densely 

 granular, and surrounded by a single row of fairly large punctures. 

 The aperture is nearly semi-circular and surrounded by a more or 

 less well developed almost tubular peristome open only between 

 the two distally placed and nearly approximate spines, with the 

 outer sides of which it is connate. The peristome, the proximal 

 portion of which is often provided with a short screen-shaped pro- 

 jection, is more or less distinctly separated from the adjoining part 

 of the frontal wall, and may sometimes be almost vertically pro- 



^ In Levinsen's manuscript this species was designated as Escharella n. sp., but 

 O. NoKDGAARD identified it witli E. labiata Boeck. (See O. Nordgaard, Ну dr. and 

 Biol. Invest. Norw. Fiords, p. 170, PI. IV, figs. 25, 26, 31. Bergen, 1905). 



