48 ON SUMK AUSTRALIAN OPILIONKS. 



strongly bespiiied with shiirp bristly points ; those oi: the 

 female are longer and rather slimmer, but equally bespined. 



The measurements (in millimetres) are as follows : — 



Male. Ceph. Ig. 11 lat. 1| ; abd. Ig. 2, lat. 2^; mand. 2^; 

 palpus 31 ; 1st leg 4|, 2nd 8, 3rd 61, 4th 8|. 



Female. Ceph. Ig. 1|, lat. 1| ; abd. Ig. 2^, lat. 2; mand. 1| ; 

 palpus 4|; 1st leg 5^, 2nd 9|, 3rd 81, 4th 10|. 



The males are three from Mt. Algidus, Rakaia Gorge, and one 

 from Mt. Remarkables, near L. "VVakatipu. 



The females are one from Mt. Starve-all, near Nelson, and one 

 from Canterbury. All these localities are in the South Island of 

 New Zealand. 



There can be little doubt that they are all of the same species 

 from the similar coloi'ation of their parts. 



EXPLANATION OP THE PLATES. 



Plate I. 



Fig. 1. Macropsalis chiltoni Hogg. ? with short mandibles. Underside showing 

 mouth-parts, genital operciTluni, and coxse. 



2. Macropsalis chiltoni Hogg. Profile of male. 



3. Pantopsalis pococM, si^. n. (a) Dorsal view ; (b) profile; (c) Fantojisalis 



■wattsi, sp. 11., cephalic part of carapace, dorsal view. 



4. (a) Pantopsalis lialU, sp. n., $ \ (*) ? ; (c) genital operculum of ^ ; (rf) 



genital operculum of $ turned back showing organ. 



5. Pantopsalis gray i,s,^.r\. $. («) Ventral view ot carapace ; {h) mandible; 



(c) patella and tibia of palp. 



Plate II. 



Fig. 6. Trieenohunus acuminattis, sTp.n., $. {a) Dorsal view of carapace ; (J) ven- 

 tral view of carapace; (c) eye-tubercle enlarged; {d) genital opereuluin 

 turned back, showing dorsal and ventral sheaths and organ — distal end 

 only. 



7. Trianonyx cocTcayni, sp.n. (a) Under side of cephalic part of ? ; {h) under 



side of cephalic part of $ ; (c) genital organ of $ protruded from 

 operculum — Iront view ; (d) ditto — side view. 



8. Trianonyx variegata, sp. n. {a) Dorsal view of <? ; (6) ventral view of $ ; 



(f) ventral view of cephalic part of $ . 



9. Nuncia smithi, sp. ii. («) Dorsal view of carapace of ^ ; (b) ventral view, 



anterior portion of carapace; (c) tarsal claw of iv. 



Plate III. 



Fig. 10. Monoxyomma hendei, s]i.ii. $■ («) Dori^al view of carapace; (6) ventral 

 view of carapace ; (c) profile; {d) tarsal claw of iv. 



11. Monoxyommatuberculatum, s^). It. (a) Dorsal view of carapace ; (J) ventral 



view of carapace ; (c) eye-tubercle from side. 



12. Monoxyomma trailli, sp. n. (a) Dorsal view of ^ ; (b) ventral view of 



cephalic part of ^ ; (c) ventral view of cephalic part of ^ ; (d) eye-tubercle ; 

 (e) iv. tarsal joint showing claws of ^ ; (_/") iv. tarsal joint showing claws 

 of ?. 



13. Algidia cuspidata, gen. et sp.n. (a) Dorsal aspect of g ; (b) dorsal asjiect 



of 5 ; (c) under side of cephalic part of c? showing genital operculum ; 



(d) under side of cephalic part of ^ showing genital operculum ; (e) tai'sal 

 joints of iv. leg. 



