no. 1624. DESCRIPTIONS OF HAWAIIAN ALCYONARIA—NUTTING. 565 
Distribution.—Oft Kauai: Station 3985, 430-477 fathoms (Cat. 
No. 253819, U.S.N.M.); Station 3989, 385-500 fathoms (Cat. No. 
95322, U.S.N.M.); Station 3997, 418-429 fathoms (Cat. No. 25321, 
U.S.N.M.); Station 4185, 1,000-1,314 fathoms (Cat. No. 25320, 
U.S.N.M.). | 
UMBELLULA GILBERTI, new species. 
Plate XLII, fig. 4. 
Total length of stem 185 mm.; end bulb and lower swelling to- 
gether 30 mm.; polyp body to tentacle base 8 mm.; tentacles 20 mm. 
Stem slender, with end bulb and swelling better differentiated 
than in the last species, the latter quadrangular in section. Sym- 
metry radial. 
Polyps, in best specimens, five in number; bodies smooth, longi- 
tudinally ribbed by the mesenteries showing through. ‘Tentacles 
much longer in proportion than in U. jordani. 
Zooids very few in number, in groups of five or six between the 
bases of the polyps, apparently without tentacles. A few are seen 
sparsely distributed on terminal swelling. They are apparently 
absent from specimen from Station 4183. 
Color.—Stem very light brown; end bulb and swelling more de- 
cided sienna brown; polyps umber brown, the ribs lighter. 
Named for Prof. Charles H. Gilbert, of Stanford University. 
Lype—Cat. No. 22586, U.S.N.M., Albatross Station 4183, off Kaui, 
957-1,067 fathoms. 
Off Bird Island: Station 3979, 222-887 fathoms. 
UMBELLULA, species. 
Plate XLII, fig. 9: 
A fragmentary specimen was secured at Station 4126, between 
Oahu and Kauai, which had but two polyps and a very short portion 
of the stem below the rachis. 
This specimen is not sufficiently well preserved for specific descrip- 
tion, but the following points were made out: 
The two polyps are nearly opposite, with bodies about 13 mm. long 
and tentacles 23 mm. ‘The body is much corrugated transversely 
and has eight longitudinal ribs. 
Rachis broad and club-shaped. 
Spicules very numerous, small, needle-shaped, crowded throughout 
the entire surface of rachis, polyps and tentacles. 
Zooids not easily distinguishable, but apparently rather sparsely 
distributed on surface of rachis and basal parts of polyps. 
This is the only Umbellula in the collection that has evident spicules 
on the rachis and polyps. 
Proe. N. M. vol. xxxiv—O8——37 
