402 Mr. Templeton on certain Spiders. 



Eyes, the anterior pair approximate, leaving no open space, and much 

 larger than the other pairs. 



Dysdera Latreillii ?, Blackw. 

 Dysdera , mihi. 



Being by no means an advocate for the unnecessary estabhshraent of 

 nevir genera, I have merely removed these Spiders into separate divisions, 

 the difiPerences being too striking to admit of their being associated to- 

 gether, though in habit and form they bear a strong analogy. As I am 

 not certain that my species is that described by Dufour or by Black wall 

 I am undetermined as to which division their specimens may belong. I 

 have however given a drawing and description of mine, so that those 

 who may have opportunities of meeting with the Dysd. parvula of Du- 

 four and the Dysd. Latreillii of Mr. Blackwall may be enabled to 

 combine the synonyms, if they all belong to the same species. Dufour's 

 description is " Thorax smooth, depressed, livid black; mandibles, palpi 

 " and feet testaceous rufous; abdomen griseous, hispid," which might 

 apply to mine; but in his drawing the mandibles are represented of 

 half the length of the thorax, and the eyes differ from mine slightly in 

 position and magnitude : how far these differences may have arisen from 

 hasty examination I am imable to determine, but if the draw^ing be cor- 

 rect, it unquestionably refers to another species. 



In the examination of Spiders a source of inaccuracy arises, which 

 requires to be pointed out, and which has perhaps led to the slight dif- 

 ference between Mr. Blackwall's description and that given below. If 

 the Spider be examined in the air, the silky hairs lie over each other so 

 as to prevent the abdominal maculae being at all or clearly distinguish- 

 able, and to obviate this, I have uniformly placed the species I sketch 

 under water between two plates of glass separated by rings of card, thus 

 each hair assumes its natural position and the maculae are easily seen. 



Dysdera Templctoni*. 

 Dysdera Latreillii ?, Blackw. 



* Mr. Templeton having omitted to affix a trivial name to this species, the 

 Editor has supplied the deficiency by applying to it that of its able observer. 



