NEW SPECIES OF FOSSIL SCORPIONS, 405 
From the character of the. pustulation it probably belongs to the same species 
as the above. The above carapace is interesting in being intermediate in 
character between L. tuberculatus and a carapace, which is not an uncommon 
fossil in the Langholm bed, which, however, has the tubes of its mesial eyes 
separated throughout by a sulcus. 
Locality._-River Esk, four miles south from ned Dumfriesshire. 
Horizon.—Near the base of the Cementstone group, Calciferous Sand- 
stone series (Lower Carboniferous), 
Collector —A. MAcCONOCHIE. 
Hoscorpius inflatus, n. sp. (Plate XXIII. figs. 12 to 12d), 
All that is known of this scorpion is the carapace, which is not an uncommon 
fossil in the shales at the locality on the River Esk, near Langholm, Dumfries- 
shire, which has proved so rich in other rarities. Owing to the thicker portions 
of the test being generally filled with calcareous calculi till not a portion of the 
original material is visible, the carapaces are not crushed but still retain their 
original raised or embossed character. In a few cases where the calculi are 
sparse the carapaces are flattened, and the nature of the horny skin is revealed. 
It is evident from this that the calculi must have been introduced in the in- 
terval between the death of the scorpion and its interment, and it shows that 
the remains must have been subjected for some time to the action of “ hard 
water.” 
Specific Characters.—Carapace subovate, a little broader than long, and 
narrower in front than behind. The greater portion of the surface is puffed up 
into six lobules, arranged symmetrically in pairs, and divided off from each other 
by deep sulci. Two of these mounds, of an elongated shape, form the antero- 
lateral margins, one on each side. Two large, almost circular, mounds occupy 
the greater part of the posterior portions of the carapace, and two smaller, 
triangular, ones are situated between them and those first described. A deep 
mesial furrow runs from the anterior to the posterior margin, and sends off 
branches between the monticules. Near the anterior end of this furrow two 
small tubes, which in this case are separated by a groove, rise gradually from 
the carapace, and diverge at a slight angle, the front extremities being occupied 
by two large circular eyes, smaller in proportion to the carapace than in any of 
the formerly described species. Underneath the elongated mounds occupying 
the antero-lateral margins, and entirely overhung by them, are at least four 
small oval eminences on each side which appear to be lateral eyes. These 
fossils are invariably preserved “back up,” a circumstance that is easily 
accounted for (see fig. 12c). . 
The carapace is ornamented by numerous pustulations on the raised por- 
tions, while the sulci are plain, and the posterior and postero-lateral portions 
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