A. W. WATERS—REPORT ON THE BRYOZOA. 143 
Flustra umbracula as figured by Savigny is very similar, although a lip is 
shown in fig. 7,, and the ovicells are large, but on fig. 74 not unduly so. 
The L. californica of Busk is shown with the avicularia high up, and he 
says “above,” which presumably means above the oral pore. Hincks shows 
the avicularia much lower down, and it is not clear that Hincks was describing 
the same species as Busk. 
I only know J. ciliata, Pall., If. corenata, Aud., I. impressa, Aud., 
M. Malusti, Aud., M. personata, Busk, from the tropics. J/. coronata belongs 
to the ciliata group, and it is a question whether it should be called a 
variety. 
Loc. Holborn Island, Queensland (Hasw.), Sydney ( Wat.), California (B.). 
From bottom of ship ‘Fayoum’ in Suez docks (18) & (20), collected by 
Crossland; Gimsah Bay, collected by Hartmeyer. [Nice and Ajaccio 
(Calvet) .] 
MicroporELLa CILIATA (Pallas). 
Loc. Cosmopolitan ; Engineer Island, Khor Dongola on Hydrocorallina, 
collected by Crossland; Ras el Millan, collected by Hartmeyer. 
SCHIZOPORELLA UNICORNIS, Johnston. (Plate 12. figs. 12, 13.) 
Leprakia unicornis, Johnst. Brit. Zooph. ed. 2, p. 820, pl. 57. fig. 1 (1847). 
Add to Miss Jelly’s list of synonyms :-— 
Lepralia unicornis, Barrois, Embryol. des Bryozoaires, p. 152, pl. 8. figs. 30, 33, 35, 37. 
Schizoporella unicornis, Pergens, “‘ Unters. an Seebryozoen,” Zool. Anzeiger, Nos. 317-318, 
p. 12 (1889); Waters, Quart. Journ. Geol. Soc. vol. xlvii. (1891) p. 27; Ortmann, Die 
Japanische Bryozoenfauna, p. 49, pl. 3. fig. 85 (1890); Calvet, Bry. Mar. de Cette, p. 40 
(1902) ; Bry. Mar. de Cétes de Corse, p. 20 (1902); Bry. de ‘ Hirondelle,’ p. 188 (1908) ; 
Nordyaard, Norwegen Fiords, p. 165, pl. 5. figs. 28, 25 (1905) ; Canu, Bry. Tert. dela Tunisie, 
Exp. Sc. dela Tunisie, p. 24, pl. 34 (1904) ; Thornely, “‘ Manaar,” p. 114; Neviani, Bull. Soc. 
Geol. Ital. vol. xv. p. 20, fig. 4 (1896); Bri. d. Form. plioc. & post-plice., op. ett. vol. xvii. 
p- 11; Bull. Soe. Romana p. gli St. Zool. vol. iv. pp. 6, 14, 20; pt.iv. p. 7; pt. v. p. 13; 
Bri. foss. di Carrubare, p. 511; Bri. foss. della Farnesina, Paleont. Ital. vol. i. p. 114, pl. 6. 
firs. 8-11 (1895); Bri. neog. delle Calabrie, op. ctt. vol. vi. p. 196 (1900). 
Reptoporina rugosa, d’Orb. Pal. Frang. vol. v. p. 448. See Waters, Ann, Mag. Nat. Hist. 
ser. 7, vol. xv. p. 8. 
This is a species about which there has been some confusion, and to a large 
extent it arose through Busk not recognising the differences between this 
species, S. sanguinea, Norm., and S. spinifera, Johnst.; but all three can be 
recognised by the opercula. In S. sanguinea the muscular attachment is 
close to the border, whereas in S. wnicornis the muscles are attached some 
little distance from the border. Further, in S. wnicornis oral glands have not 
been met with, while in S. sanguinea they are large and well developed. Gral 
glands have not been met with by me in any species of Schizoporella, where 
