504 PROFESSOR GREGORY ON 
C. Hodgsonii is not of the same species as C. eximius. And with regard to the 
large C. Hodgsonii of the Synopsis, not having seen it, I am unable to decide. 
But if it be, as the figure indicates, as strongly marked as the small one, it cannot 
be C. eximius. If, on the other hand, it should prove to be like C. eximius, then 
it is probable that it will be found to differ specifically from C. Hogdsonit. 
55. Campylodiscus limbatus, Bréb. Pl. XL, fig.55. Form orbicular. Diameter 
from 0:005" to 0-008". Canaliculi marginal, short, broad, transversely sulcate, so 
as to appear, on close inspection, almost moniliform. Within this marginal band 
is another fainter band (the outer one being strong and black), which looks almost 
like the reflection in a mirror of the first, except that the bars in it are more de- 
cidedly moniliform, or formed of more distinct granules, which, near the median line, 
extend from both ends towards the centre, in a broad band, which becomes gra- 
dually narrower and fainter as it proceeds, and is lost on both sides before reach- 
ing the centre. In Dr Bresisson’s figure these projecting bands reach the centre, 
but I have not been able to trace them so far, and have only done so with diffi- 
culty, so far as I have traced them. 
This very fine and striking form is not unfrequent in two of the Loch Fine 
dredgings. About four years ago, I observed a fragment of a large Campy- 
lodiscus in a marine gathering from Oban, which was not known to Professor 
SmirH; but I did not describe it, having waited for an entire specimen, which I 
did not meet with till this last October, when it proved to have been a fragment 
of C. limbatus, which Dr Bresisson had shortly before figured as occurring at 
Cherbourg. 
GROUP V. 
AMPHIPRORA. 
Of the genus Amphiprora, the new species in these dredgings, though not 
very numerous, are very interesting. One form is very doubtfully referred to 
this genus. 
56. iar ae ae n. Sp. 60. pa obtusa, n. sp. 
57. plicata, n. sp. 61. : maxima, n. sp., G. 
58. aie elegans, Sm. 62. as (2) complexa, L. sp., G. 
59. 8.4 lepidoptera, n. sp., G. 
56. Amphiprora pusilla, n. sp. Pl. XIL., figs. 56 and 566. Form of the F.V. 
nearly rectangular, a little incurved in the middle, and expanded at the extremities. 
Above each valve lies a plate, in shape like a narrow arc of a very large circle, the 
convex edge outwards, the middle of it slightly overlapping the central constric- 
tion, while the ends coincide with the inner terminal angles of the valve. Length 
about 0:0027’; breadth, including plates, at the middle, 0°0008’. S.V. lanceolate, 
