Bryozoa. 447 



St. 69, Stormbugt, 20-30 m. 



St. 71a, ofî Cape Bismarck, 30— 40 m. 



St. 72 c, Stormbugt, 15— 20 m. 



St. 95 a, The Sound between Renskæret and Maatten, 50 — 100 m. 



Hippothoa expansa Dawson. 



Hippothoa expansa Hincks, op. cit. p. 291, pi. 1, fig, 1. 

 — — Waters, op. cit. p. 69, pi. 8, fig, 19. 



A single colony on a stone. 



St. 71 a, off Cape Bismarck, 30-40 m. 



Genus Harmeria Norman. 



The zooecia lack a covering membrane, the calcareous matter 

 is very thin and brittle and there are no spines. They present a 

 larger or smaller distinctly defined frontal area, provided with 

 numerous pores. A compound operculum feebly chitinized. Rosette 

 plates with few pores. No ooecia and no avicularia. The disciform 

 colony presents two diff"erent sizes of zooecia, larger inner and 

 smaller outer. 



When provisionally I refer the characteristical genus Harmeria 

 to the Hippothoidœ it is because it agrees with the members of this 

 family in significant characters, and at the same time does not show 

 the faintest relationship to any other family, as far as I can see. 

 In the first place the calcareous matter is, like that found in the 

 Hippothoidæ, very thin, glassy and brittle, and presents the same 

 five both longitudinal and transverse striation. There are no spines 

 but the hollow rostriform suboral projection, often developed in H. 

 scutulata, may be compared with similar projections in Hippothoa. 

 As in the Hippothoidæ the calcification takes place simultaneously 

 with the growth, while in other Bryozoa the zooecium as a rule attains 

 its complete size before the calcification begins. Though the colonies 

 have been preserved in spirit for five years I cannot doubt that the 

 lack of a covering membrane over the frontal surface is not due to 

 the state of conservation, as I have found a distinct covering mem- 

 brane in the ancestrula as well as in the undeveloped zooecia and, 

 besides, the pores also present a distinct membrane. 



On the other hand Harmeria differs from the other Hippothoidæ 

 in the lack of pore-chambers and of ooecia. 



Harmeria scutulata Busk. 



Lepralia scutulata Busk, Quarterly Journ, Micr. Sc, Vol. П, p. 255, 

 Zoophytol., Tab. Ill, figs. 1-2. 



XLin. 34 



