PSEUDOSCORPIONS FROM FORMOSA. I. 123 



6. Cheiridiuni formosanum nov. sp. 



One small eye on each side, about 2 diameters from the 

 front margin. 



Colour. The whole animal brick-coloured, the lower side 

 and the interstitial parts of the abdomen somewhat paler; on 

 the lower side of the abdomen are three pairs of darker trans- 

 versal spots (cfr. Ch. subtropicum Tullgren). 



Céphalothorax a little shorter than wide behind, about as 

 1 : 1,3; the shape of the céphalothorax is triangular, the lateral 

 margins straight, slightly sinuate at the transversal groove; just 

 in front of the sinuation a projecting and irregular protube- 

 rance; the front margin about ^4 of the length of the posterior 

 margin, and nearly straight. One strong transversal groove, 

 somewhat nearer to the hinder margin than to the front margin, 

 strongly curved posteriorly. No second (hinder) transversal 

 groove is visible. This surface strongly granulated, with no 

 hairs (perhaps lost?). The posterior margin of cephalothora 

 has 12 pointed, triangular teeth or projections, six on each side 

 of the median line (cfr. Ch. subtropicum Tullgren). 



Abdomen. All eleven tergites are visible from above, the 

 last tergite however only partially. All except the last one 

 are divided longitudinally by a fine stripe. The posterior mar- 

 gins of the 5 anterior tergites have pointed, triangular teeth 

 similar to those of the céphalothorax, 6 or 7 on each sclerite 

 (cf. Ch, subtropicum Tullgren). Along the lateral margins and 

 the posterior margin of the last tergite are placed short and 

 very broad hairs. The surface strongly granulated. 



Palps about as long as the body, slender, strongly granulated 

 (except the fingers) and provided with very broad hairs, curved 

 forwards. The coxa of the palps, on the externo-anterior corner, 

 with a strong, pointed projection. — Trochanter with a very 

 slender stalk, otherwise about as long as wide, the anterior 

 margin strongly convex, with posteriorly an irregular protube- 

 rance. Femur with a short and slender stalk, about 3 times as 



