170 
BULLETIN 125, UNITED STATES NATIONAL MUSEUM. 
Family TUBUCELLARIIDAE Busk, 1884. 
Genus TUBUCELLARIA D’Orbigny, 1852. 
(For description, see Bulletin 106, U. S. National Museum, p. 542.) 
TUBUCELLARIA PUNCTULATA Gabb and Horn, 1862. 
Plate 40, figs. 1-4. 
1862. Entalophora punctulata Gabb and Horn, Monograph Polyzoa Secondary and Tertiary forma¬ 
tions of North America, Journal Academy Natural Sciences, Philadelphia, ser. 2, vol. 5, 
p 171, pi. 21, fig. 61. 
, [Peristome, 0-30 mm. ~ . \Lz = 1.20-1.30 mm. 
Measurements. —L, . , . A , _ A AA Zooecia 7 A , A A _ A 
[Penstomice, 0.18-0.20 mm. \lz = 0.40-0.50 mm. 
Affinities. —This species is not entirely articulated; the segments are often 
ramified. The peristome sometimes bears one or two small avicularisr. The frontal 
is a tremocyst with large pores. 
The exterior aspect is rather deceiving and the older American authors classi¬ 
fied the species in Entalophora. The bifurcation of the segments confirmed this 
reference but the longitudinal section proves their error (fig. 4). The ovicell is 
buried in the thickness of the peristomial walls; unfortunately we have not yet had 
the chance to section an ovicelled zoarium. 
Occurrence. —Pleistocene: Santa Barbara (very common), Santa Monica (rare), 
and Dead Mans Island, off San Pedro, California (rare). 
Plesiotypes. —Cat. Nos. 68686-68688, U.S.N.M. 
TUBUCELLARIA PUNCTULATA, var. MINOR, new variety. 
Plate 40, figs. 5, 6. 
The micrometric measurements are smaller; the tremopores are smaller and 
more scattered. 
Measurements.- 
[Peristome, 0.24 mm. „ ■ jLz= 1.20 mm. 
iPeristomice, 0.14 mm. ooeciaj^ =0.40 mm. 
# The constancy of these small micrometric measurements obliges us to sepa¬ 
rate this variety from the well-known long-ago described species. 
Occurrence. —Pleistocene: Santa Barbara (rare) and Santa Monica (Tremochal 
Canon), California (rare). 
Holotype. —Cat. No. 68689, U.S.N.M. 
Family PHYLACTELLIDAE Canu and Bassler, 1917. 
Genus PHYLACTELLA Hincks, 1880. 
(For description see Bulletin 106, U.S. National Museum, p. 573.) 
PHYLACTELLA SPINOSISSIMA, var. MAJOR Hincks, 1884. 
Plate 39, figs. 8, 9. 
1884. Mucronella spinosissima, var. major Hincks, Polyzoa of the Queen Charlotte Islands, Annals 
and Magazine Natural History, ser. 5, vol. 13, p. 53 (sep. 27); p. 213 (sep. 42). 
Affinities. —In Miss Jelly’s Synonymic Catalogue of Marine Bryozoa this species 
is considered a synonym of Mucronella peachi, var. octodentata Hincks, 1880. We 
believe this arrangement is erroneous because here the ovicell is recumbent and placed 
