204 ON TWO NEW GENERA OF SPIDERS. [Mar. 18, 



could, however, discern four, and I feel little doubt but that within 

 these are the normal third minute pair. 



This genus is allied to Cryptotheh, L. Koch, but differs essentially 

 in the position of the eyes and form of the maxillae. It resembles 

 Cryptothele in the concealment of the spinners. Dr. L. Koch says 

 these are two in number. In the only example I have of Cryptothele 

 I cannot discern any at all ; while, as above noted, I perceive at least 

 four in the present genus. It seems therefore possible that Crypto- 

 thele may have the normal number of six, or at any rate more than the 

 two noted by Dr. L. Koch. 



Regillus aspeR, sp. nov. (Plate XV. fig. 5.) 



Female (not quite adult), length Ij line. 



The whole Spider is of a yellow-brown hue, the legs palest. The 

 cephalothorax, looked at in profile, has a strong dip or liollow curve 

 between the ocular area and the thorax, and the normal indentations 

 are strong ; about the middle of the thorax, which is rather raised, are 

 two strongish tubercular prominences in a longitudinal line ; these 

 probably were once surmounted by spines, though now broken off. 

 A strong, curved, obtuse double spine issues forward, from near the 

 middle of the ocular area, and there are two others below it, in a 

 transverse line, longer but less strong. There are other spines on the 

 clypeus (the height of which is less than half that of the facial 

 sj)ace), and on other parts of the cephalothorax, but those specially 

 noted are the most conspicuous. The surface of the cephalothorax 

 is covered with short coarsish pubescence, and is marked by some 

 darker brown markings roughly arranged in longitudinal rows. 



The eyes are seated on separate tubercles ; those of the anterior 

 row are divided by as nearly as possible equal intervals of rather 

 more than an eye's diameter, while the hind centrals are nearer 

 together than each is to the hind-lateral eye on its side. 



The legs are pale yellow-brown, somewhat pubescent like the 

 cephalothorax, armed as above noted in the generic diagnosis, and 

 the femora are marked (chiefly on their undersides) with some 

 distinct but broken dark-brown annuli. 



']^\\c palpi are pale yellow-brown, short ; the digital joint somewhat 

 tumid and ending with a simple (unpectinated), curved, spine-like 

 claw. 



The abdomen projects a little over the base of the cephalothorax ; 

 it is yellow-brown, marked along the middle of the upper side with 

 some slightly darker roundish impressed normal spots in transverse 

 pairs, and with an apical one at the middle of the fore extremity, 

 thus forming two lines diverging from the middle of the fore margin 

 backwards. Its spinous armature has been noted above in the 

 generic description. 



A single example was received many years ago, from Ceylon, from 

 Mr. G. H. K. Thwaites. 



