CELLULAEINB AND OTHER POLTZOA. 355 
4. Teicellaria sympodia [Yanagi S; Okada). 
Menipe.a sympodia, Yanagi & Okada, 1918, Ann. Zool. Japou. ix. p. 410, pi. 6. fig. 1, 
text-fig-. 2. Japan, 250 fatlioms. 
As indicated by its name, this species is an instance of the sympodial 
mode of growth, due to the suppression oE one o£ the joints at the bifurcation. 
The remarkably elongated, cylindrical frontal avicularia resemble those of 
Alenipea crispa and of ? JVoto^Aites normani. 
5. Teicellaria peachii (Busk). (Fig. 11 .) 
Cellularia peachii, Busk, 1851, A.M.N. H. (2) vii. p. 82, pi. 8. figs. 1-4. Britisli 
coasts ; Busk, 1852 ^ p. 20, pi. 27. figs. 3-6. 
This common species has been frequently described. It appears to repre- 
sent the extreme amount of loss of structures which typically occur in the 
genus, as shown by the disappearance of the frontal and marginal avicularia 
and of the scutum. It was made the genotype of Bugulopsis by Verrill ; 
but its mode of bifurcation is that of Tricellaria, with which I think it 
should be placed. 
6. Teicellaria monoteypa {Busk). 
Cellularia monotrypa, Busk, 1852', p. 368. Bass Straits. 
„ cuspidata, Busk, 1852% p. 19, pi. 27. figs. 1, 2; 1884, p. 17. 
In 1884 Busk remarked that it might be proper, conditionally, to revert to 
his original name, monotrypa. There seems no question that this should be 
done, as Busk was not justified by the Rules of Nomenclature in substituting 
a new name without adequate reason, which was not given in his second woi'k 
published in 1852. 
B. Internodes uniserial at the proximal end. Joints composed of a single 
chitinous tube (fig. 12). 
I regard this condition as secondary, and as due to the suppression of the 
proximal segments of the zocecia F and G. A similar suppression is found 
in Emma. 
7. Teicellaeia aculeata {D'Orb.). (Fig. 12.) 
Bicellaria aculeata, D'Orbigny, 1839-1846, Voy. Ami5r. Merid. v. 4, p. 8,. pi. 2. 
figs. 1-4 {Tricellaria aculeata on the plate). Falkland Is. 
Menipea aculeata. Busk, 1884, p. 20, pi. 4. figs. 3, 2 a. Falkland Is., Patagonia, 
5-175 fatlioms*. 
„ „ Marcus, 1921, Vid. Medd. Dansk naturh. Foren. Ixxiii. p. 93. 
Campljell Id. 
* Busk's record of Stat. 303, 1325 fathoms, should probably have been Stat. 308, 
-176 fathoms (see under Amastigia beneiminita, p. 334). 
