109 



B. dissimilis (Busk). 



Carbasea dissimilis Busk, Catalogue of Mariue Polyzoa, Pari 1. 

 Clieiioslomata pag. 51, PI. 50, figs. 4 — 7. 



— — Busk, CiuUlenger, Zoology, Vol. X, Pari I, 



pag. -5fT. S's 



Fluslra dissimilis Waters, Journ. R. Micros. See. 1896, pag. 282. 



(PI. V, fig. 2 a— d). 



The zooecia elongated, quadrangularly tongue-shaped, with as a rule a niucli 

 narrower proximal half, of which a larger or smaller part is calcified. Three 

 pairs of spines may occur, of which fre(iuently only a smaller number is devel- 

 oped. In colonies without oa'cia only the first pair is generally present, but even 

 tliese may be lacking or rudimentary in many zocecia. In colonies with ocecia, 

 it is rather difUcult to find this pair of spines from the surface of the colony, 

 as they are placed in a hollow on each side of the oa>cium. The marginal 

 zorecia which are longer than the others, are drawn out into a plump corner- 

 spine. The distal wall, which is furnished with two multiporous rosette-plates, 

 is much bent angularly, and has besides a distinct saddle-s]iaj)ed curve from the 

 front to the basal side (fig. 2 b, 2 c). Each lateral wall is furnished in its distal 

 half with two multiporous, strongly projecting rosette-plates. The basal surface 

 of the zooecia is coarsely striated transversely (fig. 2 b). 



The avicularia which are placed in the middle of the proximal, calcified 

 portion of the zowcia are attached by means of a rather wide proximal part 

 and the tii)s are turned in diil'erent directions. 



The ocecia are not as fiee as they are in Biujula, rather a large part of 

 their basal wall being firmly connected which tlie higher zoa'cium. They are 

 very large, furnished with an uncalcified ectooo'cium, and the endoooecium besides 

 a distinct double striation also has a cliaracteristic system of lines bounding 

 triangular or s([uare api)arently impressed meshes. 



Cornucopina nov. gen. 

 Bicellaria p. p. 



(PI. IV, fif^s. 4 and 5). 



The zixrcid widening from a long, tube-shaped proximal end obliipiely up- 

 wards, funnel-shaped, with a ring-shaped constriction at a greater or less distance 

 from the distal wall. The mrcift, which are not placed between two zocecia in 

 the same longitudinal row but on the zoa-cial distal margin, which is directed 

 outwards from the middle of the colony, are surrounded by kenozo(x'cia. In most 



