48 



ON SOME AUSTRALIAN OPILIONKS. 



strongly bespinetl with sliarp bristly points ; those of the 

 female are longer and rather slimmer, but equally bespinetl. 



The measurements (in millimetres) are as follows : — 



Male. Ceph. Ig. li lat. 1| ; abd. Ig. 2, lat. U \ mand. 2^ ; 

 palpus 3J ; 1st leg 4^, 2nd 8, 3rd ^, 4th 8|. 



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

 palpus 4f ; 1st leg 5|/2nd 9J, 3r(l 8|, 4th rO|. 



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

 from Mt. Remarkables, near L. Wakatipu. 



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

 fi'om Ca-nterbury. All these localities are in the South Island of 

 New Zealand. 



There can be little doubt that they are all of the same S})ecies 

 from the similar coloiation of their parts. 



EXPLANATION OF THE PLATES. 

 Plate I. 



1. Macropsalis cMltoni Hogg. $ with short mandibles. Underside sliovvuig' 



inoiith-parts, genital operculum, and coxa;. 



2. Macropsalis chiltoni Hogg. Profile of male. 



3. Fantopsalis pococJci, i\. (a) Dorsal view ; (h) profile; (c) Fantopsalis 



tvattsi, sp. n., cephalic part of carapace, dorsal view. 



4. (a) Fantopsalis Jialli, sp. n., ; (6) ? ; (c) genitiil operculum of S ; («') 



genital operculum of ^ turned back showing organ. 



5. Fantopsalis grai/i, STp.n. (a) Ventral view ot carapace ; (h) mandible; 



(c) patella and tibia of palp. 



Plate II. 



Fig. 6. Tricenohunus acuminatns, ?>-p.w., (a) Dorsal view of carapace ; (6) ven- 

 tral view of carapace; (c) eye-tubercle enlarged; [d) genital opei'ciilum 

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

 only. 



7. Tri(enonyx coclcayni, sp.u. («) Under side of cephalic part of ^ ; {h) under 



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

 operculum — Iront view ; id) ditto — side view. 



8. Tncenonyx variegata, sp. n. (a) Dorsal view of ^ ; (6) ventral view of $ ; 



{c) ventral view of cephalic part of ^ • 



9. Nuncia smith i, sp. n. (a) Dorsal view of carapace of $ ; (i) ventral view, 



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



Plate III. 



Fig. 10. Monoxyomma 1iendei,&\).\\. («) Dorsal view of carapace; (&) ventral 



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



11. 3Ionoxyo7nma tuberculatum, SY). u. (a) Dorsal view of carapace; (b) ventral 



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



12. Monoxyomma trailli, sp. n. (a) Dorsal view of ^ ; (6) ventral view of 



cephalic part of S ; (<^) ventral view of cepbalic part of $ ; (d) eye-tubercle ; 

 (e) iv. tarsal joint showing claws of S ; if) iv. tarsal joint showing claws 

 of ?. 



13. Algidia czispidata, gen. et sp. n. (a) Dorsal aspect of ^ ; (b) dorsal aspect 



of 5 ; (c) under side of cepbalic part of ^ showing genital oix-rculum ; 



(d) under side of cephalic part of ^ showing genital operculum ; (e) tarsal 

 joints of iv. leg. 



