Kew — A Synopsis of the False- Scorpions of Britain and Ireland. 51 



C. museorum (Leach). 

 Chelifer museorum Leach 181*7 (13). Cheiridium museorum (Leach) Menge 

 1855 (20). 



Palps and cephalothorax rather richly reddish-brown, thorax a little 

 less dark, abdominal tergites becoming rather richly amber-brown ; dnll 

 or nearly so, witlr small whitish bristles. Head narrow in front, broadened 

 out and raised towards base witlr two lateral and two dorso-lateral eleva- 

 tions, closely granulate ; eyes convex, smooth, well-limited, far removed 

 from anterior and some distance from lateral margin; thoracic tergite much 

 broader behind than in front, witli median circular depression ; abdomen 

 broad, tergites I.-X. divided, XL invisible from above, undivided ; thoracic 

 tergite, abdominal tergites, and interstitial membrane of dorsum strongly 

 granulate with large remote granules, in great part with low ridges 

 running from one to anotlier ; galea ( 2 ) moderately long, distally with 

 minute processes; palps (fig. 13) trochanter abruptly broadened from stalk, 

 its lower protuberance basal much produced posteriorly, femur increasing 

 obliquely from stalk, not broader near base than near extremity ; the palp is 

 granulate, tibia and hand rather weakly so ; coxae IV. (?) long, slightly 

 concave behind and a little widened to a moderate corner towards extremity. 

 $ with galea much smaller ; coxae IV. more concave behind and widened to 

 a prominent corner towards extremity ; genital plates and sternites behind 

 them strongly developed. L. 1-1.' 



In old stables, cow-sheds, barns, hay-lofts, meal- and flour-mills, etc., behind the boards, under 

 stones on the floors, and among debris ; in old houses in crevices of wood- work, behind wall-paper, 

 in cases of stuffed birds, etc.; also in old nests of birds in w;iUs and hollow trees ; and sometimes 

 under close-fitting bark of dead trees ; generally distributed and abundant in Britain. Ireland : Co. 

 Dublin (R. P. Scharff). 



(1, 11, 13, 42, 69, 70, 75, 79, 81, 85, 87, 92.) 



II. Hemictenodactyli. 



Chelieerae large ; serrida free distally ; lamina exterior only exceptionally 

 present ; often without galea. Cephalothorax witlr anterior median process or 

 marginal serration ; never with grooves limiting head and thoracic somites. 

 Abdominal somite XL with tergite and sternite fused. 



(Galea absent in all but one and lamina exterior absent in all Britannic 

 forms ; in tliese, and generally, lamina interior serrula-like ; maxillae with 

 ventral face in higher plane than that of coxae ; cephalothorax broadly 

 truncate in front ; abdominal tergites without median division ; body more 



' C.ferum Sim. (found as near to us as northern Brittany) has the head only slightly broadened 

 out and raised towards base, abdominal tergite XI. visible from above, femur of palps increasing 

 fibruptly from stalk and broader near base than elsewhere; ? with remarkable triple galea, - 



