KEY. 0. P. CAMBEIDGE OS NEW SPIDERS. 2G9 



of strongish black spines (similar to those mentioned in description of 

 E. formidahile) towards the upper extremities of falces. 

 Abdomen small, of a sooty black-brown colour, clothed with hairs, among 



which are some much longer than others. 

 The specimen above described is in the Hope Coll. TJniv. Mus. 

 Oxford, and is labelled " Swan Eiver." 



Eriodon crassum, n. sp. PI. IX. figs. 14-16. 



$ . Length 7^ lines. 



This species is similar in general form and appearance to E. 

 formidahile ; but, independently of size, it may at once be distin- 

 guished by the much shorter proportion of its falces compared 

 witli cephalothorax, and by the different relative position of the 

 eyes, which are also proportionally larger, especially the front 

 one of each lateral triangular group ; this eye is also situated 

 much nearer the lower margin of caput. Taking this eye as the 

 apex of the triangle, the space between the two eyes forming 

 its base is equal to that between the inner one of these two and 

 that one of the two central eyes on its side, whereas in both Ti. 

 formidahile and E. granulosum the space between the two at the 

 base of the triangle is considerably less ; and thus the eyes in the 

 present species are more equally spread over the fore part of the 

 caput, and consequently the side groups occupy a larger space. 



Falces about equal in length to that of caput, and, like the two former 

 species, armed near inner extremity of uppersides with a. group of 

 spines. 



Legs similar in length and proportion to those of E. formidabile. 



The abdomen, in the specimen described, was too much shrunken 

 and damaged to afford any exact characters ; it appeared to be 

 of a dark dull-brown colour, hairy, and with a sort of reddish 

 plate or shield on the centre of the uppers ide. 



A single ? in Hope Coll., Oxford Univ. Museum, labelled 

 ^^ Swam, Siver." This species is very nearly allied to the typical 

 species M occatorius (Walk.), but is smaller, and appears to differ 

 also in other respects ; it is possible, however, that the capture 

 of other specimens of both sexes may prove it to be identical 

 with that species. 



In all the three species above described the specimens were 

 dried and pinned ; and so it was impossible to make any very 

 accurate observations in respect to the length of the legs, or 

 the spinners, or spiracular orifices : these last, according to M. 

 Lucas, in his observations on C. occatorius (loc. cit. supra, 18G5), 



