BY WILLIAM A. HASWELL, M.A., B.SC. 435 



9. Halimus las vis, sp. nov. ? 



Carapace nearly smooth above ; five tubercles on the gastric 

 region ; no spine on the posterior margin ; lateral spines similarly 

 placed to those of II. spinosus but smaller — the last almost obsolete. 

 Basal joint of the antennae with a sharp tooth at its antero-internal 

 angle and a spine at its antero- external angle. Anterior limbs 

 (in the male) very large ; arm with a conical tooth at the distal 

 end of its upper surface, and three or four smaller ones further 

 back ; wrist very strongly carinated ; hand very large, swollen, 

 smooth, with two or three very small fasciculi of hairs ; fingers 

 acute, meeting only at their tips when closed, leaving a large 

 interval. Posterior limbs with the penultimate joint compressed, 

 but not truncate as in JEL. spinosus. 



Sab. Tasmania, King George's Sound, W. Australia. 



This species differs from S. aries and S. spinosus in wanting 

 the spine on the posterior border of the carapace, and from S. 

 auritus probably in the large size of the anterior limbs in the male. 

 From H. tumidus it differs in the absence of the spines on the 

 outer border of the basal joint of the antennae. 



10. Microhalimus deflexifrons, sub-gen. etsp. nov. Plate xxv. fig. 2. 



Carapace sub-triangular, nearly smooth, the lateral margins 

 with three very minute spines on the hepatic regions, three others 

 on the branchials, a similar minute point towards the middle of 

 the latter region, and another in the middle of the posterior border. 

 Gastric region very prominent, two small tubercles in front 

 opposite the eyes ; three rounded tubercles on the cardiac region. 

 Eostrum obliquely deflexed, of two slender, acute, divergent 

 cornua. Orbits not well-defined, with two spines behind the eye 

 — the anterior very small, occupying the posterior angle of the 

 upper orbital border, the posterior much larger than the anterior 

 and separated from it by a considerable interval. Basal joint of 

 the external antennae enlarged, about twice as long as broad, 



