■352 SIR SIDNEY F. HAEMER ON" 
oric^inal specimen, but that it fills the entire opesia (in the same way as in 
JV. marsupiatus, Jull.). He refers to a figure by Alder, reproduced in his 
own original account (fig. 6), supposing that certain avicularia which ajjpear 
to be on the basal surface are really frontal avicularia seen through the 
zooecia by transparency. It appears jDossible that these are really basal avicu- 
laria, and in a specimen from Norway in the Cambridge Collection I have 
-observed structures on the basal surface which may perhaps be of this nature. 
8. NoTOPLiTES SMITTII {Normaii). 
Cellularia ternata, forma duplex, Smitt, 1868, Ufv. K. Vet.-Akad. Forli. xxiv. (1867), 
pp. 283, 312, pi. 16. tigs. 25, 26. Spitsbergen. 
Menipea smittii, Norman, 1868, Q. J. M. S. (ii. s.) viii. p. 214. 
„ „ Hincks, 1880, p. 43. 
Menipea duplex, Levinsen, 1887, Dijmplma-Togtets zool.-bot. Udbytte (Copenhagen), 
p. 309, pi. 26. figs. 1, 2. Kara Sea. 
Scrupocellaria smiitn, Waters, 1900, J. L. S. xxviii. p. 57, pi. 7. figs. 8-11. Franz 
Josef Land. 
Hincks remarks of this species, which has frontal and lateral avicularia 
but no scutum, that it is nearly allied to M. jefreysii. The mode of branching 
characteristic of the genus may be seen in Smitt's fig. 25 ; but it is better 
shown by Waters (fig. 8), who emphasizes its difference from certain other 
species. 
9. NoTOPLlTES ANTARCTicus ( Waters). 
Scrupocellaria antarctica. Waters, 1904, 'Belgica' Brj'ozoa, p. 25, pi. 1. figs. 5a-e; 
pi. viii. tigs. 2 a, b. Antarctic, 435-480 metres. 
„ Kluge, 1914, p. 606, pi. 28. fig. 1. Antarctic, 350-385 
metres. 
Frontal and marginal avicularia and scutum present. Waters' iig. 5 a 
shows the mode of bifurcation well. 
The three species next following, described by Kluge from Antarctic 
waters, may be referred to Notoplites, on the evidence of the bifurcation, as 
shown in the figures. S. watersi appears to bifurcate in the same manner ; 
while S. perdita, in which there is no evidence with regard to this point, has 
an ovicell resembling that of other species of Notoplites. 
10. Notoplites tenuis (Kluge). 
Sci-ujjoeellaria tenuis, Klugo, 1914, p, 608, pi. 27. fig. 2. Antarctic, 46-385 metres. 
Frontal avicularia and scutum present. Marginal avicularia wanting. 
Bifurcation clearly represented. 
11. Notoplites drygalskii [Kluge). 
Scrupocellaria drygalskii, Kluge, 1914, p. 609, pi. 27. fig. 5. Antarctic, 70-385 
metres. 
Frontal and marginal avicularia present. The scutum fills the opesia, as in 
M. jeffreysii. Bifurcation figured. 
