240 BULLETIN OF THE 
Cryptolaria longitheca ALLMAN, 101 fms. | Cladocarpus tenuis sp. nov. 101 fms. 
Sertularia distans ALLMAN, 36 fms, Aglaophenia apocarpa ALLMAN, 175 ۰ 
* — complexa sp. nov. i distans ALLMAN, 539 fms. 
Sertularella amphorifera ALLMAN, 101 fs. uy rigida ALLMAN, 339 fms. 
Mi conica ALLMAN, 36 fms, ds gracilis ALLMAN, 87 fms. 
Plumularia gracilis sp. nov. Nematophorus grandis gen. et sp. nov. 
Cladocarpus dolicotheca ALLMAN, 339 fms. 339 fms. 
Pennaria symmetrica sp. nov. 
Plate I. Figs. 2, 3. 
Trophosome. — Hydrocaulus three, sometimes four inches high, occurring in 
dense clusters, which arise from a thick network of wiry, hydrorhizal fila- 
ments; deep black, becoming light horn-color at the tips; tapering but 
slightly towards the distal end, slightly zigzag, straight or very slightly curved ; 
annulated at the base, and with a few, usually three, annulations just above the 
origin of each branch. Branches short, alternate, and with the distichous ar- 
rangement characteristic of the family ; annulated at the base, and at the distal 
side of the origin of each ultimate ramulus. The ultimate ramuli all spring 
from the upper sides of the branches, are annulatéd at the base, and increase in 
size towards the distal end. Hydranths large, borne on the distal ends of the 
ultimate ramuli and those of the main stem and branches, largest at the base, 
tapering towards the mouth ; filiform tentacles fourteen to eighteen, tapering 
but very little, if any, towards the distal end ; capitate tentacles very short and 
about thirty in number. 
Gonosome. — Unknown, 
Locality. — Bahia Honda, Cuba. 
The specimens form a thick cluster of dark-colored stems, considerably over- 
grown at the base and on the hydrorhiza with small sponges, ascidia, encrust- 
ing forms of polyzoa and annelid-tubes. A great many particles of coarse sand 
are by this means retained in the network of the hydrorhiza, thus indicating 
the nature of the bottom on which the colonies lived. 
There is quite a close general resemblance between this form and the Pen- 
maria gibbosa of L. Agassiz. But the zooids of this one have a symmetrical, 
not a gibbous-shaped body ; the ultimate ramuli are annulated only at the 
base, not throughout; and the branches are not annulated at their distal ends. 
Still another difference is found in the position or point of origin of the fili- 
form tentacles. In P. gibbosa they arise from the extreme base of the hy- 
dranth, while in the present form the point of origin is at some distance from 
the base. 
Upon examining quite a large number of hydranths, I find that they vary in 
one particular. In some of them the filiform tentacles terminate in slightly, 
but distinctly swollen tips, while in others this feature is entirely wanting. 
Judging from alcoholic specimens, I am inclined to believe that this is due to 
the state of contraction they were in at death. 
