16 Ccel 
CCEEENTERATA. 
Leiotealia , g. n. (p. 37). Tealiidce with smooth body, without warts and 
without spherules, but with longitudinal furrows corresponding with the 
insertions of the septa ; tentacles of equal size, arranged in several rows. 
L. nymphcea — A. nymphcea (Dana). 
Paradis excavata (p. 41), 33° 42' S. lat., 78° 18' W. long., depth 
1375 fath. 
Dysactis crassicornis (p. 44), 53° 38' S. lat., 70° 56' W. long., depth 
10-15 fath., and 52° 20' S. lat., 68° W. long., depth 55 fath. 
Tealidium , g. u. Paractidce , having the tentacles placed in several 
rows and of uniform size in the same row, and having the wall covered 
with fine papillae. T. cingulatum (p. 51), 50° 1' S. lat., 123° 4' E. long. } 
depth 1800 fath. 
Antholoba , g. n. (p. 53), = Metriclium (M.-E.) pt. Paractidce , with innu- 
merable small tentacles, which lie on a swollen thickening of the margin of 
the disk; margin of the disk lobed as in Metrulium, A. reticulata = 
Adinia reticulata (Couthouy) = Metridium reticulatum (Milne-Ed wards). 
Ophiodiscus , g. n. Paractidce with a single corona of long tentacles ? 
which project at the margin of the wall and oral disk, and are only fur- 
nished with muscles on the upper side ; wall smooth, with longitudinal 
furrows, indicating the insertions of the septa; septa differentiated into 
muscular and reproductive ; the animals do not appear to draw the oral 
disk over the mouth, though a mesodermal muscle is present. O. annn- 
latus (p. 57), 33° 31' S. lat., 74° 43' W. long., depth 2160 fath. ; 0. sulcatus 
(p. 61), 33° 42' S. lat., 78° 18' W. long., depth 1375 fath. 
Liponemidce : a new family including Hexactinice with numerous perfect 
septa, and with marginal tentacles transformed by retrograde formation 
into short tubes or stomidia. 
Polysiphonia } g. n. : Liponemidce with tentacles transformed into 
short tubes with wide terminal mouths ; circular muscle mesodermal, 
slightly developed. P. tuberosa (p. 63), 34° 7'N. lat., 138° E. long., depth 
565 fath. 
Polystornidium , g. n. : Liponemidce with longitudinal furrows and mar- 
ginal spherules on the walls ; tentacles transformed into stomidia ; cir- 
cular muscle sendodermal. P. patens (p. 67), 38° 6' S. lat., 88° 2' W. long., 
depth 1825 fath. 
Cereus sjnnosus (p. 76), 53° 55' S. lat., 108° 35' E. long., depth 1950 fath., 
and 34° 37' N. lat., 140° 32' E. long., depth 1875 fath. 
Phellia pectinata (p. 81), 49° 24' S. lat., 74° 23' W. long., depth 147 
fath. 
Bunodes minuta (p. 84), 46° 16' S. lat., 48° 27' E. long., depth 1600 
fath. 
Amphianthidce (p. 86). A new family containing Hexactinice which are 
attached to the stems of Gorgoniidce with shortened sagittal and elongated 
transverse axis ; transverse axis lying parallel to the axial skeleton of the 
Gorgonia ; circular muscle mesodermal, the principal septa only perfect 
and sterile. 
Stephanactis , g. n. : Amphianthidce with firm wall, divided by a 
circular swelling into an upper and a lower section decreasing in 
size from within outwards. S. tuberculata (p. 88), 35° 11' N. lat., 
