On new Species of Heterocera from Japan. 17 
we have nothing more than one sponge bearing the three 
names Wyvillethomsonia Wallichii, Wright,=Dorvillia aga- 
riciformis, Kent,= Tiphisonia agariciformis, Wyv. Thoms. 
Its spongiose nature may be further confirmed by comparing 
it with my Wagnerella borealis, to which it bears much 
resemblance and which is a true sponge. 
With respect to Gastrophysema scopula, it is impossible to 
decide definitively whether it is a Physemarion or a Rhizopod. 
On the one hand, the presence of pseudopodia, which Mr. Carter 
has himself observed, leads us to believe in its Foraminiferous 
nature; on the other, its great resemblance to the other species 
of Gastrophysema observed by Hickel would make us think 
that both organisms belong to the Physemaria. In any case 
fresh observations upon Sguamulina scopula can alone finally 
decide the question. 
EXPLANATION OF PLATE. VI. 
[All the figures enlarged and drawn by the camera lucida. ] 
Fig. 1. An adult individual of average size of Wagnerella borealis. The 
eduncle is a little wider above, the head regularly rounded. 
here are more spicules than are here represented. 
Fig. 2. A young individual with the head not yet round, and differing 
but little from the peduncle. 
Fig. 5. Part of the peduncle, more highly magnified, with the small kind 
of spicules. 
Fig. 4. Form sometimes presented by the basal cone of the peduncle, 
which, however, usually has the form shown in fig. 1. 
Fig. 5. Different forms of the long spicules which adorn the head: 
a, immeasurably fine; 6, stouter, but straight; ¢, long and 
curved ; d, shorter and curved ; e, zigzae. 
Fig. 6. Different forms of spicules of the second category, fusiform, 
shorter and stouter: a, typical; b, curved; ¢, typical, with a 
bubble of air (?). 

X.—Descriptions of new Species of Heterocera from Japan. 
—Part II. Noctuites. By Artuur G. Butter, F.L.S., 
F.Z.8., &e. 
Cymatophoridez. 
59. Gonophora derasoides, n. sp. 
Nearly allied to G. derasa, but of a greyer tint; the mark- 
ings (particularly on the white costal streak of primaries) less 
defined; the reniform and other discoidal spots narrower and 
more transverse ; the area between the oblique white stripe 
and the zigzag lines pale stramineous, with darker and lunated 
