Miscellaneous. 13 
skeleton-spicula, no appearance of dermal or flesh-spicula, while the 
abundant smooth statospheres retained few if any acerate spicules, 
bore a sufficiently close resemblance to the description of Spongilla 
paupercula, as given by Dr. Bowerbank from specimens collected in 
the same or a neighbouring locality before 1863. 
With this form was found another, probably altogether sessile, 
consisting of an intertexture of stout fusiform acerate skeleton- 
spicules, abruptly pointed, coarsely spined, except near the extre- 
mities; spines subconical, acute; dermal spicules absent or un- 
discovered ; statospheres without granular coating, some of them 
exhibiting a few misplaced, irregular or malformed birotulate 
spicules, the distinguishing feature of which is the prolongation 
of the familiar boss upon the outer surface of each rotule into a 
long acuminate spine, in line with and a continuation of the shaft. 
He suggested for this species, provisionally, the name Meyenia 
acuminata. 
The exceptional features referred to above, as marking this col- 
lection of sponges, were, first, the fact that all the statospheres, 
whether belonging to the genus Spongilla or Meyenia, were smooth 
—that is, without a granular or cellular “ crust ;” second, the appa- 
rent absence of dermal spicules in both, and the abnormal character 
of those belonging to the statospheres. The appearance is not in- 
frequent, but has, so far as known, heretofore been limited to the 
genus Spongilla. The recurrence of the same feature in the asso- 
ciated genus Meyenia, coupled with the fact that many of the 
birotulates upon its statospheres were imperfect, the rays being 
more or less aborted, approximating their shape to that of the 
spined fusiform acerates of Spongilla, gave rise to the suggestion 
that here, possibly, had been, not merely a mechanical mixture by 
inter- or superposition of species, but an organic hybridization pro- 
duced by the flowing together of the amceboid particles of which the 
sponges are composed, or even by a fertilization of the ova of one by 
the spermatozoids of the other. 
Several facts indicative of the probability that such hybridization 
may take place were adduced, and the further discussion of the sub- 
ject deferred until an examination of the living sponge in its native 
locality, or experiments upon those germinated in confinement, 
could be made. 
It is important to notice that the specimens received were collected 
in February, when the sarcode matter had nearly all been washed 
away, with, probably, accompanying changes in the presence or 
numbers of the smaller spicula—Proc. Acad. Nat. Sci. Philad., 
Feb. 14, 1882, p. 69. 
On the Priority of Kuploea Castelnaui of Felder over Kuploeea phoebus. 
By Arruur G. Bourusr, F.L.S., F.Z.8., &e. 
In the first part of his ‘ Rhopalocera Malayana,’ p. 24, Mr. Distant 
gives priority to H. Castelnawi ; he remarks as follows :—‘“ As Mr. 
Butler has himself admitted the identity of his 2. phabus and E. 
