408 Mr. Teiiipleton on certain Spiders. 



Explanation of the Figures. 

 Plate XVII. 



Fig. 1. Dysdera H. Templeioni, female. 



2. — — — ■ male. 



3. Seen in profile. 



4. Anterior superior part enlarged to shew the position of the eyes. 



5. The eyes seen from before. 

 6. seen from above. 



7. The mandibles from behind, with 2 teeth on the nearer edges 



of the cavity for receiving the claw, and one on the farther. 



8. The maxilla and posterior lip ; the inner labial edges of the 



jaws are membranous and pass behind the lip, the jaw 

 becoming suddenly, not gradually, incrassate. 



9. The palpus of the female. 



10. Oonops pulcher, female. 



11. Profile. 



1 2. Eyes seen from above. 



13. in front. 



14. Mandibles. 



15. Parts of the mouth. 



1 6. Male palpus. 



17. A hair from the palpus of the female to shew its serrated 



structure. 



18. I'ip of the hind leg, to shew the appendicial joints and the 



claws, with the little pellucid body between on its 

 peduncle. 



the position of each focus ; they are not numerous, being in the pedal arteries 

 about two or three times their own length asunder, one only passing at once 

 through the tube: in the veins however they lie closer together. 



I remember last year seeing what I thought was the motion of a fluid in the 

 legs of Ciro alatus. If this observation was correct, accurate examination may 

 make this a test of the position of these minute tribes : it lies open to future 

 investigation. 



