Spiders of the Sub Family Lyssomance. 247 



roundefl on the sides and at the base, and moderately elevated m the 

 cephalic region. The falces are small, sub-conical, and inclined to- 

 Avard the sternum, which is broad, convex, and heart-shaped; the 

 maxillae are short, rounded at the extremity, and inclined toward 

 the lip, which is somewhat quadrate, being broader at the base than 

 at the apex. The legs are slender, and provided with hairs and long 

 spines, two parallel rows of the latter extending along the inferior 

 surface of the tibia and metatarsus of the first and second pairs; each 

 tarsus is terminated by two minute, curved claws, below which there 

 is a small black scopula. The abdomen is long, sub-cylindrical, and 

 has a few short, pale hairs distributed over its surface. The superior 

 spinners are the longest, and their terminal joint, which is pointed, 

 has the spinning-tubes arranged on its inferior surface. The palpi of 

 the specimen from which the description was made were very tumid, 

 but the palpal organs were not developed, indicating that it proba- 

 bly had to undergo its final change of integument before it arrived at 

 maturity; the radial was stronger than the cubital joint, and promi- 

 nent in front." 



GROUP II. ATHAMII. 



GENUS ATHAMAS Cambridge. 



Cephalothorax high, short, quadrate, very convex above, sloping steeply be- 

 hind and on the sides. Caput occupying at least one-half of cephalo- 

 thorax. Eyes arranged in four transverse rows of two each. Eyes of 

 first row large and close together. Eyes of second row two-thirds 

 as large as those of first, forming a wider row. Eyes of thu-d row 

 half way between second and foui-th rows, and about one-third as 

 large as those of fourth row. Eyes of fourth row smaller than those 

 of second and nearer together. Quadrangle formed by second and 

 fourth rows as long as wide. Labium about as wide as long. 



ATHAMAS WHITMEEI Cambridge. 1887. 



Plate XII, figures 3, 11. 



Athamas whitmeei Camb.. Proc. Zool. Soc. of London, 1877, p. o76. 



6 . Length of cephalothorax 1.6 mm; of abdomen 1.4 mm. 



p . Length of cephalothorax 1.25 mm; of abdomen, 1.75 mm.* 



Legs 3.5, 2.5, 2.5, 3. ' 



6 . Cephalic part a little longer than thoracic. Clypeus one-half as high 

 as anterior eyes. Falces vertical, short. Maxill* rounded and enlarged 

 at extremities. Labium as wide as long, one-third as long as maxUlse. 

 Sternum heart-shaped. Legs rather long and slender, those of the 

 first pair stoutest and furnished with strong spines; relative length 



* These are the measurements given by Kich. Wi.> have no female of this species. ^ 



