266 University of California Publications. [ ZOOLOGY 
15. Bugula neritina (Linneus) Oken. 
Pl. IX, fig. 47; Pl. XVI, fig. 97. 
Sertularia neritina Linneus, 1758, ed. X, p. 38. 
Cellularia neritina, Pallas, 1766, p. 67. 
Snail-bearing Coralline Ellis, 1767, p. 40, Pl. 19, figs. a, A. 
Cellaria neritina, Ell. and Sol., 1786, p. 22. 
Bugula neritina, Oken, 1815, Ab. 2, p. 89. 
Acamarchis neritina, Lamouroux, 1816, p. 58, Pl. 3, fig. 2. 
Cellularia neritina, Johnston, 1847, p. 340, Pl. 60, figs. 3, 4. 
Acamarchis neritina, d’Orbigny, 1850-52, p. 324. 
Bugula neritina, Busk, 1852, p. 44, Pl. XLITI, figs. 1-6. 
Bugula neritina, Waters, 1887, p. 91, Pl. IV, figs. 3, 15. 
Zoarium consisting of large bushy tufts 75 to 100 mm. in 
height, brown or reddish brown, often tinged with purple. 
(Pl. XVI, fig. 97.) Branching dichotomous. Zoecia biserial, 
quadrangular, truneate above; aperture occupying more than 
two-thirds of the front; a short spine or denticle at the summit 
of the sides of the zowcium (PI. IX, fig. 47, den.). Owcia very 
conspicuous and numerous (0e.); globose, attached to the inner 
anterior angle of the zocwcium by a short peduncle. Avicularia 
none. Rootlets forming a tuft at the base of the colony. 
This species is extremely abundant, especially on the southern 
coast of California. It is not only found on rocks, floats, kelp, 
ete., along the shore, but it is frequently taken by the dredge, 
and great brown masses are constantly cast on the beach by the 
waves. Its most northern limit is Monterey Bay, where it is 
obtained in small quantities. 
16. Bugula murrayana (Johnston) Busk. 
Pl. X, fig. 48; Pl. XVI, figs. 98, 99, 
? Eschara hispida Pallas, 1766, p. 49. 
Flustra murrayana Johnston, 1847, ed. Il, p. 347, Pl. LXITI, 
figs. 5, 6. 
Avicella multispina Van Beneden, 1848, Vol. 15, pt. I, p. 76, figs. 
(he $e 
? Ornithopora dilatata d’Orbigny, 1850-52, p. 323. 
Bugula murrayana, Busk, 1852, p. 46, Pl. LIX, figs. 1, 2. 
Bugula murrayana, Smitt, 1867, p. 291, Pl. XVIII, figs. 19-27. 
Bugula murrayana, Hincks, 1880, p. 92, Pl. XIV, figs. 2-9. 
Zoarium composed of bushy tufts from 25-50 mm. in height, 
sometimes consisting of masses of Flustra-like fronds 50 or 
