BY WILLIAM A. IIASWELL, M.A., B.SC. 47 



marking of the carapace ; but also in the possession of a line 

 of tubercles on the inner border of the hand. The carapace is of 

 a dull ashy-grey tint, which becomes blueish on the front, and on 

 the general surface of the arms. There are a pair of circles on the 

 branchial regions, as in L.pulcherrima and various other species, 

 but the lines are extremely fine ; the anterior trilobate pattern, 

 which is also very faint, has the three lobes drawn out from one 

 another, so as to leave a considerable central space, and the outer 

 lobe is not regularly rounded, as in L. pulcherrima and the 

 species next to be described. There are three white spots 

 within the trilobate figure, the most anterior being very small. 



Sp. 10. Leucosia splendida, sp. no v. (Plate 5. fig. 1). Testa 

 kevi, convexa, antice sparsim punctata, figuris trifloliaceis binis 

 distinctis, binisque circularibus ornata, manu ordine inconspicuo 

 tuberculorum ; sinu thoracico profundo, angusto, antice bene 

 definito. 



This beautiful species is very nearly allied to L. pulcherrima ; 

 but differs from it in the marking of the carapace, as well as in 

 the possession of a line of very small tubercles on the inner border 

 of the band. The two trefoil markings on the carapace do not 

 coalesce at any point ; and the angles between the lobes are more 

 pointed ; the circular figures are more remote from one another 

 and from the trefoil marks, and, together with the latter, are 

 much smaller than in the species described by Mr. Miers. There 

 is a very close agreement in all other points. 



Length 8 lines ; breadth 7 lines. 



Uab. Port Jackson (Macleay Museum). 



Sp. 11. Leucosia Chevertii, sp. nor. (Plate 5. fig. 2.) Testa 

 rbomboidea, fronte producto, paeno integro ; regionibus hepaticis 

 convexis, lsevibus ; brachiis ad basin tomentosis, tuberculis 

 magnis omnino instructis. 



Carapace rhomboidal, polished, with a rounded elevation on 

 the hepatic region, which is free from granulations. Front nearly 



