A. W. WATERS—REPORT ON THE BRYOZOA. 15)7/ 
SMITTIA MARMOREA (f7incks). (Plate 18. fig. 9.) 
Lepralia marmorea, Hincks, Ann. Mag. Nat. Hist. ser. 4, vol. xx. (1877) p. 214. 
Smittia marmorea, Hincks, Brit. Mar. Polyzoa, p. 350, pl. 36. figs. 3-5. 
‘There are only a few dried zocecia as figured, and although it, at first 
glance, seems to be Schizoporella, the resemblance to Hincks’s figure of 
S. marmorea is so close that it seems advisable to consider it as that species. 
The zoarium is incrusting, and the zocecia are subovate, smooth, with a row 
of pores round the border ; below the aperture, and a little to one side, there 
is an avicularium close up to the peristome. The peristome is much raised, 
but is sometimes wanting at the distal end, and may be wanting at the 
proximal. No lyrula is visibie; but the peristome, the shape of the 
operculum, and other characters are similar to those in the S. reticulata 
group ; however, the lyrula may be deeper down and so out of sight. The 
ovicell is unknown. Specimens like this occur from the Mediterranean and 
other places in the Red Sea, but none seen were in a satisfactory condition 
for study. 
This may be the Flustra Legentilii, Audouin. 
Loc. Suez (14), collected by Crossland. 
SMITTIA EGYPTIACA, sp. nov. (Plate 15. figs. 6, 9.) 
The adnate zoarium has the zocecia arranged radially and biserial—that is, 
the zocecia are in two longitudinal rows side by side, and then on each side 
of the two rows there is a straight, very thick divisional wall (fig. 9). 
I have described and figured a very similar structure in a fossil called 
Cellepora biradiata, Waters*. Zocecia subquadrate, only slightly raised, 
distinctly separated, surrounded by a row of large pores, surface granular. 
Oral aperture with a broad lyrula, and at each side, higher than the aperture, 
a small triangular avicularium directed downwards. The operculum has 
a chitinous ridge, curved upwards on each side and nearly meeting towards 
the middle of the operculum (fig. 8). S. obstructa, Waters, and S. tripora, 
Waters, both have more or less of a ridge across the operculum. The ovicells 
are wide, raised, globular, perforated within an area. 
S. egyptiaca is somewhat like S. dentata, Waters, from the Antarctic, but 
in the former the avicularia are placed higher and the lyrula is not dentate. 
The Zanzibar specimens have the surface smooth to slightly granular. 
Loc. Khor Dongola (19) and Engineer Island, collected by Crossland ; 
Ras el Millan, Sinai Coast, collected by Hartmeyer; Wasin, Brit. Hast 
Africa (520), collected by Crossland. 
* Quart. Journ. Geol. Soc. vol. xli. (1885) p. 306, pl. 7. figs. 11, 12. 
3 12* 
