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openings in the margin of the gonozooecium lead directly into the two pore- 

 chambers, the inner wall of which has 6—8 small, single-pored rosette-plates. 

 As a spine is never separated from the appertaining zooecium by any septum 

 furnished with rosette-plates, such being only found on the boundary between 

 two bryozoids (or in a terminal zooecium), we must set down the two ooecial valves 

 as kenozocecia, and the absence of the two spines is sufficiently explained by the 

 fact, that the two valves leave absolutely no room for them. We have already 

 on a former occasion called attention to the fact that a zooecium which is only 

 connected with a single daughter-zocBcium has only a single pore-chamber (3 c), 

 and that the number of pore-chambers answers to the number of daughter-zoce- 

 cia. The gonozooecium with its ocecium will accordingly correspond with a mother- 

 zooecium bearing two daughter-zooecia and otherwise as we shall see later on, 

 three daughter-zooecia only occur on the lowest or the two lowest axial zooecia 

 of the colony (3 a). The chitinous connection between the gonozooecium and 

 its two valves is also in accordance with what we know from the other indi- 

 viduals of the colony. 



The colonies form fine feathery tufts and take their origin from a sj'stem of 

 branched, chitinous tubes covering various algae. Besides the ooecia-bearing 

 branches we may in a colony distinguish between zooecia of first, second and 

 third order. The zooecia of the first order or the axial zooecia form a slightlj^ 

 bent zigzag row, and in every zooecium the broad, chitinized piece connecting it 

 with the distally situated zooecium is alternately on the right or the left side of 

 the longitudinal axis of the zooecium, on the same side as the larger opesiular 

 opening. On the other side is the much narrower connecting belt with the obli- 

 quely, distally directed zooecia of the second order, and from each of these two 

 rows of zooecia of the third order may isgue. In each row there may be from 

 two to four zooecia. The axial zooecia are longer than the others, the semi-ellipti- 

 cal ridge more angular, the two opesiulae of less unequal size and the two horns 

 less pointed and bent inwards a little. The principal difference in the zooecia of 

 the second order and those of the third order is that the two horns of the former 

 are bent inwards as in the axial zooecia. The lowest axial zooecium has most 

 frequently a branch on either side, as is also the case now and then in the low- 

 est but one. In a number of the lower axial zooecia radical fibres proceed from 

 the proximal half of the frontal surface. 



Of this species I have been able to examine a large number of dry colonies 

 from South Africa (Miss Jelly). 



