190 Papers from the Marine Biological Laboratory at Tortugas. 



simple, spineless character of the zooecium easily serves to distinguish it 

 from others of the genus. 



The species is entirely southern in its distribution, being recorded from 

 Tasmania (type locality), Australia, Chatham Island, Ganjam coast, and 

 the Red Sea. The present record therefore adds the species to the Atlantic 

 fauna and greatly increases the known range. 



Hincks described the species as having spines on each side. Waters 

 (1909) remarks that they are absent in Red Sea specimens, but sometimes 

 present in those from Chatham Island. There is no indication of them in 

 my material. 

 Beania cupulariensis n. sp. (Figs. 6 and 7.) 



Small, straggling colonies growing attached to the under side of Cupularia 

 guiniensis. The individual cells are fairly large (about as in B. mirabilis). 

 On each side of the flattened frontal area there are about 6 (5 to 7) slender 

 marginal spines which curve somewhat over the area. At the distal end 

 2 smaller spines project forward. At each side of the aperture is placed an 



Fig. 6. — Beania cupulariensis n. sp. Mode of branching and details of /w/f^\ 



zooecium. ^~ — '' 



Fig. 7. — The same. Dorsal side, showing zocedal base and point of origin of 

 dorsal fiber. 



avicularium situated on a short stalk on margin of cell; as far as observed, 

 these are always paired. The form is short, the beak strongly decurved. 

 The zooecium arises from the preceding one of the series, near the distal 

 part of the dorsal surface, by a tubular stalk so short that the top of one 

 zooecium projects over the base of the next in series. A branch arises 

 about midway of the zooecium near the lateral margin. Here again the 

 tubular portion is very short and, as far as observed, only one branch arises 

 from a zooecium — never in pairs. There seem to be no other processes 

 arising from the zooecium and many of the cells have no tubes, branches, or 

 other processes arising from them, except that of the zooecium next in the 

 series and a dorsal process for attachment. 



