546 Dr. H. Woodward—On Arthropoda of Coal-measures. 
There is a tenth, extremely narrow, segment just on the edge of th 
nodule, which is probably the first post-abdominal segment. 
The first five segments behind the head are narrower in front and 
broader along their posterior border; but from the sixth to the ninth 
this is reversed, as they are broader in front and narrower posteriorly, 
giving to the body its general elliptical form. Each segment has 
a slightly raised transverse border and a narrow longitudinal ridge 
along the median line, and a similar lineation midway on either side ; 
the lateral margins of each segment curve gently outwards, and the 
posterior angles are slightly produced and pointed backwards. 
This fossil is no doubt related to Secudder’s genus Geralnura, 
of which four species have been described from the Coal-measures of 
Bohemia, viz.: Geralinura Bohemica, Scudder; G. crassa, Kusta; 
G. noctua, Kusta; G. Scuddert, Kusta (see Professor A. Fritsch, 
“¢ Palaeozoische Arachniden,”’ 1904, pp. 61-62) ; and one, G. carbonaria, 
Sc., from the Coal-measures of Illinois.’ 
This genus is defined by Mr. Scudder as having the cephalothorax 
(prosoma) ovate, rounded in front, and narrower than the squarely 
truncated posterior border, with well-rounded sides, not more than 
half as large as the abdomen, which is cylindrical, sometimes depressed, 
and composed of nine principal segments, the first three being shorter 
than the others; and is followed by a post-abdomen of three much 
contracted joints, and this again by the jointed thread-like tail 
(peculiar to the Thelyphonides). There are a pair of eyes on the 
front of the cephalothorax. The palpi are large, robust, and coarsely 
chelate. The legs are moderately long and slender.’ 
Our specimen, although agreeing generally with the above de- 
scription of the genus Geralinura in its body-segments, differs in the 
shortness of its limbs, whilst the palpi and the head are only imperfectly 
preserved, nor is the thread-like tail visible. But rather than create 
a new genus I have placed it provisionally under Scudder’s genus 
Geralinura, and. dedicate the species to my friend Mr. W. H. Sutcliffe, 
F.G.S., of Shore Mills, Littleborough, who has liberally presented this 
and so many other choice specimens to the British Museum. 
5. Anruracomartus, Karsch : Zeitsch. deutsch. geol. Gesellsch., 1882, 
p. 560. 
The following is Scudder’s diagnosis of the genus :—The cephalo- 
thorax (prosoma) is quadrate, the front square, or scarcely convex, 
half the size of the abdomen (opisthosoma) ; the coxe laterally affixed, 
radiating from a broad triangular sternal plate, the base of which 
forms the posterior margin. Sides of the body showing a distinct 
though slight*constriction between the prosoma and the opisthosoma, 
the latter being more convex. Opisthosoma orbicular, a little longer 
than broad, composed of seven segments. 
Of this genus Scudder writes: ‘‘ This is apparently the most 
abundant type of Arachnida in the Carboniferous formation. . Kusta 
y ; 
1 See §. H. Scudder, ‘‘ Illustrations of the Carboniferous Arachnida of North 
America of the Orders Anthracomarti and Pedipalpi,’’ May 7th, 1890, pp. 454-456, 
pl. xxxix, figs. 1, 8, 4: Mem. Boston Soc. Nat. Hist., vol. iv, No. 9, Boston, 1890. 
