448 TRANS. OF THE ACAD. OF SCIENCE, 
* SEPTOPORA, n. g. 
Bryozoum a fan-like expansion, with longitudinal ribs ir 
regular in size, radiating from a centre, branching, and ocea- 
sionally anastomosing, having two lines of pores, one on éi- 
ther side of a tuberculated midrib. Dissepiments forming 
arches agi noe less angular, dividing the Bryozoum into quad- 
rangular, round, semilunar, or energy fenestrules ; each 
Sabeitiaast: omevaesi ng from one to four irregular lines of 
cell-pores ; dhs hed smooth Bi worn, more or less tuber- | 
cled when perfec | 
I have shablished this genus upon the character of the 
dissepiments, which are more celluliferous than the longitu- 
dinal rays. Though in its general features it resembles Fe- 
nestella, it differs in a marked degree by its celluliferous dis- 
sepiments. This modification of the original type is, We 
think, a sufficient justification for forming a new genus. 
|5L.x5 7. 
Se SEPpToPoRA CESTRIENSIS, N. Sp. 
Bryozoum fan-shaped, irregularly waved; Longitudinal 
rays with a distinct round keel, having 0 n each side - 
row of large cells with thick lips, and surmounted, id 
more perfect condition, by a line of tu bercles longer “die 
wide, five or six times their own diameter weet 
sepiments ria prominent, generally arched, opposite oF ' 
ages sometimes meeting the rays obliquely, a and fag 
ht angles, having from one to three fae 
me on the medallion face ; smaller than the. rays on ¥ ed 
verse; fenestrules round, quadrangular, rho nfo 
lunar from double-arching; five in the space oF 
ritudinally, and the same transversely ; cells large 
| 
This unique species, * tale which ie ave i. | 
ric characters, presents a very differe ra eee sie 
its perfect state, or when much weathered, cori ‘fl 
sod wel Seta rote rough, while in the latter it ae 
