150 Dr. A. Gunther on tico new Fishes. 
Fig. 3. The same. Largest form of spicule. Natural size. Diagram¬ 
matic. 
Fig. 4. The same. Typical form of large spicule, magnified, to show 
spines or aborted rays of head, composing, in juxtaposition and 
in situ, the surface in some parts. Copied from fig. 11, ‘ Annals,’ 
1878, vol. i. pi. ix. 
Fig. 5. The same. Head of same, more magnified, to show microspina- 
tion of central ray, and a, bifurcation of a lateral one. Also 
copied from l. e. 
Fig. 6. The same. Small spicule with twelve to fourteen rays. Much 
magnified. Diagrammatic. 
Fig. 7. The same. Large spicule with fewer rays and slightly inflated 
centre, a, end view ; b, lateral view. Much magnified. 
Fig. 8. The same. Group of small spicules in situ taken from surface of 
large excretory canal in the outer part of the sponge. Rela¬ 
tively magnified. Showing : — a a, arms of large spicules; b b, 
small spicules with central inflation and arms more or less broken 
oft'; c c c, arms attached to each other. Scale l-24tli to l-830th 
inch. 
Fig. 9. Hemiasteretta tgpus, n. sp. (recent sponge). Skeleton-spicule, 
linear, acuate; magnified (scale l-24th to 1-lSOOth inch), 
o, flesh-spicule, stelliform ; magnified (same scale), b b, forms 
with from four to eight rays, more magnified. 
Fig. 10. Hemiasterella affinis, n.sp. (recent sponge). Skeleton-spicule, 
linear, acerate; magnified (scale l-24tli to l-1800tli inch). 
a, flesh-spicule, stelliform ; magnified (same scale), b b, other 
forms, more magnified ; c, one with central inflation. 
Fig. 11. Spicule, fossil (Pof a Eenierid sponge), magnified; abundant 
in the same deposit with Holasterella confertci. (Scale l-48th 
to l-1800th inch.) 
XV.— On two new Species of Fishes from the Bermudas. 
By Dr. A. Gunther, F.R.S. 
Mr. J. Matthew Jones, who for several years past has paid 
especial attention to the fishes occurring at the Bermudas 
(see ‘Annals,’ 1874, vol. xiv. pp. 370, 455), has again suc¬ 
ceeded in discovering two species which appear hitherto to 
have escaped observation. The types have been kindly pre¬ 
sented by the discoverer to the British Museum. 
Gerres Jonesii. 
D. A. |. L. lat. 49. L. transv. jj. 
The height of the body is two sevenths of the total length 
(without caudal). Prseorbital and prseoperculum entire, the 
latter with the angle slightly rounded. The groove for the 
processes of the intermaxillaries does not extend to the vertical 
from the centre of the eye, is elongate, and entirely free from 
scales. The shout is as long as the eye, and equals the width 
