ON SOME NEW AND RARE SCOTCH SPIDERS 23 



is about half a diameter, and is rather greater than that between each 

 and the fore -lateral eye next to it. The four central eyes form a 

 trapezoid much longer than broad, its posterior side being shortest. 

 Legs, rather short, i, 4, 2, 3, tolerably robust; similar in colour to 

 the cephalothorax. They are furnished with hairs and a few erect 

 spiniform bristles one on the genua, two on the tibiae, and one 

 or two near the extremity beneath the femora. The tarsi of 

 the fourth pair are considerably shorter than the metatarsi. Palpi, 

 similar in colour to the legs. Falces, long, strong, straight, similar 

 to the cephalothorax in colour ; armed with a row of 4 to 6 teeth 

 near the inner extremity, the second and third from the inner side 

 longest and strongest, and five very minute ones in a row a little 

 behind them, also several small scattered tubercles above them, each 

 surmounted by a fine bristle. Maxillce, moderate in length, strong, 

 straight, obliquely truncate on the outer extremity, rather rounded 

 on the inner side, inclined towards but not nearly touching over the 

 labium ; its colour is similar to that of the falces. Labium, of 

 moderate size, broader than high, nearly semicircular, but rather 

 flattened at the apex ; yellow brown suffused with blackish. Sternum, 

 heart-shaped, cut off in nearly a straight transverse line in front, and 

 drawn out behind into a strong obtuse point between the coxae of 

 the fourth pair of legs. Colour, yellow-brown highly suffused with 

 blackish brown. Abdomen, short-oval, olive brown, thickly covered, 

 when seen under a lens in spirits of wine, with pale yellowish spots 

 and markings disposed with some regularity in variously directed 

 lines. Spinners, short, rather strong ; and immediately in front of 

 the inferior and strongest pair is a transverse angular slit with a 

 distinctly free lip, and evidently the orifice to some tracheal organs. 

 Genital aperture large, and rather complex ; only a figure can give 

 any adequate idea of it. 



An example of this spider was received many years ago from my 

 cousin, the late Colonel Pickard, R.A., by whom it was found in the 

 island of Colonsay. I do not feel certain as to the exact generic 

 position of this spider, but it seems to agree best with Tmeticus, Sim. 



i 



Fam. LYCOSID.E. 



Gen. TROCHOSA, C. L. Koch. 



TROCHOSA BIUNGUICULATA, Camb. 



Plate I. Fig. i. 



Trochosa biunguiculata, Camb., " Trans. Linn. Soc.," xxvii. p. 526, 

 Plate XIV. Fig. 2., and " Spid. Dors.," p. 544. 



ADULT FEMALE. Length, 5 lines; length of cephalothorax, 2\ 

 lines ; breadth of cephalothorax, 1 f lines. Cephalothorax, yellow-brown 

 tinged with orange-brown, suffused on the sides of the thorax with 



