330 



punctured and striolate behind, beset with sharp granules in front; 

 anal tergite scarcely granular, evenly convex from side to side; the 

 upper half convex from above downwards, the lower half — separated 

 from the upper by a low ridge — nearly vertical; the inferior border 

 thickened; without a lateral notch and marked internally by a short 

 black ridge. 



Legs with tarsal segment distally attenuate; a single spine except 

 in the first two pairs immediately above and behind the terminal claw ; 

 a double series of six or seven (or less in the anterior pairs) spines 

 on the under edge. 



Vulva with cap large, shining, smooth, completely covering the 

 distal edges of the proximal sclerites, inner edge straight, infero- 

 internal angle much produced and rounded, anterior edge very oblique 

 but nearly straight, external edge vertical and straight, lateral ex- 

 ternal angle very widely convex. 



cf — Closely resembling the female, there being scarcely a trace 

 of secondary sexual characters, the inferior half of the anal tergite is 

 very lightly saddle-shaped. 



Copulatory forceps — 1 st pair with movable dactylus composed of 

 a single stout, nearly straight, subcylindrical segment, before the 

 rounded apex there is a faint constriction; immovable dactylus slightly 

 shorter than the movable, stout, lightly incurved, convex externally, 

 concave internally; 2 nd pair with movable dactylus composed of a 

 single segment; stout and cylindrical at the base, curved, attenuate, 

 internally hollowed and bearing a posterior series of small denticles 

 in its distal half; immovable dactylus very slightly shorter than the 

 movable, wide and spatulate. 



Length 30 mm.; width 15. 



All these specimens appear to be of small size for in the British 

 Museum there are two specimens , apparently belonging to the same 

 species as these, which measure in length respectively 32 and 41 mm. 

 The larger of these two is of considerable historical interest for the 

 following reasons. 



Acting upon the belief that C. Koch had wrongly applied to a spe- 

 cimen in the Berlin Museum the name Sph. punctatum of Brandt, 

 Mr. Butler proposed to make this specimen at Berlin the type of a 

 new species, which be called Kochii. And further he affixed the 



