AND A NEW GENUS OP ABANEIDEA. , 401 



LaMum elongate, and pointed at the apex. 



Abdomen long, narrow, but enlarged towards the middle. Spin- 

 ners prominent, six, in three pairs, with a very short one be- 

 neath them having a large curvilinear-triangular surface ; this 

 represents the fourth pair, always as yet found in spiders which 

 possess a calamistrum ; in most species this supernumerary 

 spinner gives evidence of its being formed by the union, through- 

 out their entire length, of two spinners ; but in the present no 

 trace is visible of any such union. 



MiAGUAMMOPES TnwAiTESii, sp. nov. PI. XIV. figs. l-12a. 



2 adult, length 4 lines. 



Gephalotliorax oblong, rather broader in front than behind ; each 

 fore corner is obliquely and roundly truncate ; the upper sur- 

 face rather flattened ; and between the caput and thoracic region 

 there is no difference in height, each part being on the same 

 level and passing insensibly into the other ; but traces of divi- 

 sion may be seen in some irregular grooves and indentations 

 behind the eyes ; the lateral margins are somewhat flap-shaped 

 and seem to overlap the lower side a little, and the hinder ex- 

 tremity is abruptly truncated. The colour of the cephalo- 

 thorax is a dull yellow with a slightly brown tinge ; it is rather 

 densely clothed with short yellowish-brown and yellow-grey 

 hairs, somewhat approaching a coarse pubescence. A few short 

 erect black stumpy bristles or dwarf spines are also visible here 

 and there over the upper surface. 



Eyes not very unequal in size ; four in number, in a single nearly 

 straight transverse row, completely spanning the widest part of 

 the caput ; the laterals are the largest and are seated on the 

 sides of a dark tubercular eminence, close behind the lower 

 angle formed by the truncation of the fore corners of the caput ; 

 the space between the two central eyes is greater than that be- 

 tween each and the lateral on its side. 



Legs extended forwards and backwards in a straight line, very 

 \inequal in length and strength ; their relative length is 1, 4, 2, 3 : 

 those of the first pair exceed the cephalothorax and abdomen in 

 length, and are also disproportionately strong in comparison 

 with the rest; their tibiae, metatarsi, and tarsi are thickly 

 furnished with hairs, of which a long coarse fringe of yellowish 

 ones is very conspicuous on their lower sides : these legs project 



