IN THE LOWER CARBONIFEROUS SERIES OF SCOTLAND. 467 
The form and much greater size at once separate them from D. testud- 
neus,Scouler. The most perfect amongst these disjecta membra shows 
traces of seven body-segments and the three tail-spines (Pl. XXIII. 
fig. 2). The abdominal somites together mcasure one inch and a 
half long, and about half an inch in breadth, whilst the spines are 
fully half an inch long, or possibly a little more. The median spine 
is the most robust, and is three sixteenths of an inch broad at its 
base; there is no trace of surface ornamentation. Another spe- 
cimen (Plate XXIII. fig. 3) exhibits four of the body-segments and 
the central spine of the tail, giving a total length of one inch and 
three quarters, of which the spine measures three fourths of an 
inch. This individual, in the process of fossilization, has been 
crushed sideways, and indicates that the form of the somites was 
not cylindrical, as usually supposed, but each segment had a broad 
epimeral border, quadrate in form and slightly produced at its 
latero-posterior angles, reminding one of the somites in the abdo- 
men of the Decapoda. This structure is an interesting advance in 
these old Phyllopods, because, so far as we know, it does not exist 
in the allied genus Ceratiocaris, and is not known in the recent re- 
presentative Nebalia. 
Loc. and Horizon. Liddel Water, half a mile below New Castleton, 
Roxburghshire ; in the Cement-stone group of the Calciferous Sand- 
stone series. 
Coll. Geol. Survey of Scotland. 
Collector. Mr. A. Macconochie. 
DiruyrocaRris, sp. ind. 
Obs. One specimen and its counterpart, not included amongst the 
foregoing, and very much compressed, consists of two bodies and 
tails and one carapace. ‘The latter has no trace of the ornamented 
border of D. testudineus, and the tail-spines are very much shorter 
than many of the specimens previously referred to; one seven, 
another seven and a half, and again another only six lines long. 
It is not improbable that these remains may represent a species 
near D. granulata, Woodw. & Kth.* 
Loc. and Horizon. Liddel Water, half a mile below New Cas- 
tleton, Roxburghshire ; in the Cement-stone group. 
Coll. Geol. Survey of Scotland, 
Collector. Mr. A. Macconochie. 
3. On Lowrr Carponirerous SPECIES OF ANTHRAPALZMON. 
Since the description of Anthrapalemon? Woodwardi, mihi, ap- 
peared, the species has been met with at three other localities in the 
Lower Carboniferous area of the south of Scotland ; in each case the 
fortunate finder has been Mr. Macconochie. The Cement-stones of 
Roxburghshire have yielded this peculiar form in some abundance, 
and in a fine state of preservation, accompanied by the remains of 
an allied, although larger and quite distinct, species, which I. have 
much pleasure in describing as A. Macconochit, after its discoverers 
* Geol, Mag. 1874, i. tab. 5. figs. 2& 3, 
