AUSTRALIAN MALACOSTRACA. 09 



the areolets pubescent, very distinct ; the sulci smooth. Surface 

 below the hairs smooth. Antero-lateral margin with the teeth 

 normal, the second sub-hepatic, the three posterior prominent, 

 acute. Front deeply emarginate or bilobed, the lobes pro- 

 minent. Orbit with the upper border bi- emarginate, the inferior 

 border crenulate, the internal angle dentiform, prominent. 

 Chelipedes unequal, minutely tuberculate above, hand smooth 

 below. [Stimps.'] 



Port Jackson. 



119. Pilumnus hirsutus. A.M. 



Pilumnus hirsutus, Stimpson, Proc. Acad. Nat. Sci., Philad., 

 p. 37 (1858) ; Miers, Ann. and Mag. Nat. Hist., 1879, p. 31. 



Carapace slightly convex, smooth in the middle and behind, 

 faintly granular in front. Antero-lateral border with three 

 acute spiniform teeth. Chelipedes very unequal, the right the 

 larger ; an acute spine on the inner surface of the wrist, outer 

 surface of wrist granular ; hand of larger chelipede granular 

 above, smooth externally ; hand of smaller chelipede granular 

 externally. Ambulatory legs very long, the merus with 3-4 

 spines on its upper border. 



Off Holborn Island, 20 f ath. 



A variety of this species (?) from the same locality has the 

 tubercles on the hands less numerous and less prominent. 



120. Pilumnus glaberrimus. A.M. 



Pilumnus glaberrimus, Haswell, 1. c. 



Carapace nearly square, convex, postero-lateral borders nearly 

 parallel, upper surface smooth, glabrous, with a very few 

 scattered punctations ; no trace of divisional lines. Front 

 nearly straight, almost entire, but with a very minute mesial 

 notch. Antero-lateral margins rather prominent, with four very 

 obscure low lobes. Orbital borders without teeth. Merus joint 

 of anterior limbs smooth, triquetrous, with two acute teeth at its 

 distal end above ; carpus smooth internally and externally, finely 

 granulous above, its internal and distal angle slightly produced, 

 propodos much larger in the male than in the female, finely and 

 closely granular above, its outer surface, in the female, with two 

 regular longitudinal rows of granules, and below close to the 



