NOETH AMERICAN LATER TERTIARY AND QUATERNARY BRYOZOA. 145 



1889. Smittia ophidiana Waters, Bryozoa from New South Wales, Annals and Magazine of Natural 

 History, ser. 6, vol. 4, pi. 3, fig. 19. 



1903. Smittia ensi/cra Jullien, Bryozoaries provenant des Campagnes de V Uirondclk (1886-1888), 



Resultats des Campagnes Scientifiques du Prince de Monaco, fasc 23, p. 102, pi. 12, fig. 4. 



1904. Smittia ophidiana W,\ters, Resultats Voyage Belgica, Zoologie Bryozoa, p. 66. 



1907. Smittia ophidiana Calvet, Expedition scientifiques du Travailleur et Talisman, Bryozoaires, 

 p. 433 (bibliography). 



Affinities. — This species is- very close to Smitiina marmorea but differs from 

 it in the presence of costules and of areolar pores close together (and not scattered 

 punctations) and the constant presence of two frontal pores. 



Occurrence. — Miocene (Bowden marl): Bowden, Jamaica (very rare). 



Geographic distribution. — Mediterranean at Naples; Atlantic at the Azore Isles 

 (80-130 meters). 



Plesiotype.—C&t. No. 68643, U.S.N.M. 



SMITTINA GRANDICELLA. new species. 



Plate 37, figs. 10-12. 



Description. — The zoarium incrusts shells in one or more layers. The zooecia 

 are distinct, separated by a furrow, elongate, elliptical, large; the frontal is convex 

 and formed of an olocyst surmounted by a plexu-ocyst. The apertura is semi- 

 elliptical; the lyrule is short and wide; the peristome is little salient, hardly indented 

 in the proximal portion, and bears three distal spines.. 



-,, , , . f/ia = 0.12-0.13 mm. „ . fi2 = 0.55 mm. 



Measurements.— Apevturai. ^lonir Zooecia., ^ncr^.r, 



•^ |ta = 0.13-0.15 mm. ( fe = 0.32-0.40 mm. 



Affinities. — This species much resembles Smitiina trispinosa Johnston, 1838, 

 for it often bears a large avicularium on the line of areolar pores; it is distinguished 

 from it in its large zooecial dimensions and in the much less regular arrangement of 

 the zooecia. The gemmation is identical, but the lines of the nonseptular walls 

 are less rigorously rectilinear and often sinuous (fig. 12) . The bealv of the avicularium 

 is round and salient. 



Occurrence. — Pleistocene: Santa Monica (Rustic Canyon) , Calif ornia (rare). 



Cotypes. —C&i. No. 08644, U.S.N.M. 



SMITTINA DISCOIDEA, new species. 



Plate 38, figs. 1-7. 



Description. — The zoarium is unilamellar, discoidal, very large; the lower face 

 is concentrically wrinkled and the nonseptular walls are visible in the form of 

 radial costules somewhat salient. The zooecia are little distinct, elongate, more 

 or less marginate; the frontal is very little convex and formed of an olocyst sur- 

 mounted by a detachable pleurocyst with large interareolar costules. The apertura 

 is semilunar; the lyrule is short and lamellose; the peristome is not salient, and the 

 peristomie is excavated in the thickness of the frontal wall. The ovicell is globular, 

 salient, deeply embedded in the distal zooecium; it is surrounded by a little salient 

 collar. On the line of the areolar pores there is an enormous triangular avicularium 

 with pivot or with condyles of which the beak is acuminate, salient, and pointed 

 upward. 



