60 AUSTRALIAN OPILIONES 
necessary to separate the Australian species previously placed in 
Pantopsalis from the New Zealand species, I have established 
Spinicrus n.gen., into which are placed all the Australian species. 
It is certain that in at least the two genera Spinierus n.gen. and 
Megalopsalis Roewer, the males ‘ате characterized by extremely 
large spiculate chelicerae, while those of females are small and 
smooth. 
Results obtained from the study of the nunciaeform triaenony- 
chids in the collection demonstrate the need for caution in follow- 
ing the present tendency to use tarsal segmentation as a diagnostic 
generic character. Three instances are recorded below in which 
the number of tarsal segments of leg I of the female differs from 
that of the male of the same species, namely Paranuncia gigantea 
Roewer, P. ingens Roewer and Nunciella tuberculata n.sp. Hick- 
man (1939) has previously drawn attention to a similar condition 
with Nuncia unifalcata (Enderlein). 
Order OPILIONES 
Suborder PALPATORES Thorell 
Family PHALANGIIDAE Simon 
Subfamily Megalopsalinae nov. subfam. 
Thoracic tergites clearly defined by transverse grooves. Abdo- 
minal tergites usually clearly defined, occasionally fused. Corona 
analis absent. Openings of stink-glands clearly visible from above. 
Coxae I-IV without marginal rows of granules. Maxillary lobes of 
legs 11 directed obliquely across the anterior margin of the geni- 
tal operculum. Basal segment of chelicerae normally with an 
anteriorly directed spine on the ventral surface; cutting edges of 
the fingers armed with both large and small teeth. Pedipalps 
slender, unarmed; terminal claw of tarsus well developed and 
strongly serrate below. Legs long and slender; femora I-IV with- 
out nodules. Secondary sexual characters usually abundant, 
strongly developed in chelicera, legs and cephalothoracie cara- 
pace. 
The three genera recorded from Australia may be separated as 
follows: 
1. Patella of pedipalp with a prominent apophysis—M egalop- 
salis Roew. 
- Patella of pedipalp without apophysis—2. 
Chelicera of male strongly spieulate, at least twice the length 
of the body—Spinicrus n.gen. 
— Chelicera of male smooth, not exceeding the length of the 
body—N odala n.gen. 
bo 
