254: Transactions. — Zoology. 



teru, covered with greyish appressed hair, and having two 

 pairs of small reddish-brown spots, the hind-pair being 

 situated about half-way between the extremities, and the fore- 

 pair, which are nearer together, about half-way between the 

 hind-pair and the anterior extremity ; ventral surface of a 

 much lighter hue than the dorsal and lateral surface ; near the 

 base are two pale oval areas, one on each side, and in mature 

 examples there are two darkish lines beginning behind the 

 genital aperture and converging towards the spinners. Young 

 examples are of a much lighter hue throughout than old 

 ones. 



Cephalothorax about a third as long again as broad, and 

 slightly narrower in front than behind ; quadrangulus oculorum 

 flattish, and much broader than long ; eyes of the third row near 

 the edge of the quadrangle, and as distant from each other as 

 are the laterals of the front row ; eyes of the second row very 

 minute, and placed almost in the middle between those of the 

 third row and the front laterals, and in line with them ; cen- 

 trals of the front rov/ very large, projecting over the clypeus 

 and completely concealing the falces ; the laterals of this row 

 do not differ much in size from the eyes of the third row ; 

 under this row there is a very dense fringe of hair. 



Falces nearly of the same width throughout their length, 

 sparingly hairy, and having two teeth on one side of the 

 groove, and one on the other ; fang rather slender, and not 

 much longer than its falx is wide. 



MaxillaB narrowest at the base and widening towards the 

 extremities, where they are rounded on the outer and obliquely 

 truncated on the inner side, not divergent. 



Labium not quite half as long as the maxillae, oval in out- 

 line, and almost truncated in front. 



Sternum oval in outline, truncated in front and somewhat 

 bluntly pointed behind. 



Abdomen oblong-ovate ; spinners of nearly equal length 

 and compactly grouped, the inferior pair being the strongest. 



The legs are strong, hairy, armed with spines, and fur- 

 nished with a dense hair-tuft under the claws. 



The genital aperture has a dark-brown horny process on 

 each side placed thus — ^1 ; the convergence being towards the 

 posterior of the orifice. 



In general appearance the male resembles the female. 



This little spider is found along the coast of Otago, on cliffs 

 and rocks just above, at, or just below high- water mark. On 

 these rocks and cliffs are found in great abundance two or 

 three species of Diptera, which the spider resembles in colour 

 and mode of progression. So striking is this resemblance that 

 for some time I mistook the spider for a fly. In moving along 

 the face of the rocks it runs very briskly for an inch or two, 



