BY ClIAS. W. DE TIS, B.A. 321 



Description op a species of Squill FROii Moreton Bat. 

 By Ciias. W. Ve Vis, B.A. 



Lysiosquilla Miersii, n. s. 



Two species of Australian Lysiosquilla are described in Mr, 

 Haswell's Catalogue of our Stalk- and Sessile-eyed Crustacea. 

 L. acantliocarpus Gr., and L. Brazier i, Miers, both belonging to 

 Mr. Miers' second section of the genus. The occurrence on the 

 Eastern Coast of a third species representing the first group, or 

 that in which the appendages of the antepenultimate joint of the 

 three posterior pairs of thoracic limbs are almost linear, is not 

 without interest. The present species though approaching 

 somewhat near to its natural ally, L. maculatus, Miers, has salient 

 characters of its own, whi-ch may be recognised in the following 

 diagnosis : 



Carapace smooth, in the form of a truncate isosceles triangle, 

 rounded at the posterior lateral angles. Bostrum elongate, 

 cordiform, acuminate, with a median ridge on its produced limb. 

 Exposed segments with irregular longitudinal wrinkles on the 

 dorsum, which is slightly depressed, the wTinkling and depression 

 becoming more pronounced posteriorly. An irregular semi-lunar 

 depression on each segment near the lateral line. Penultimate 

 segment, narrow, deeply sculptured in a grotesque fashion. 

 Telson smooth, with a bold sagittate median ridge and four teeth 

 on the lateral margiu, of which the anterior two are strong. Ten 

 long sharp teeth on the dactyli of the raptorial limbs including 

 the terminal one, which near the tip is anteriorly dilated and 

 presents a sharp edge. All the teeth finely serrated on the 

 posterior edge. Eour long sharp teeth on the propus, the 

 posterior one moderately recurved. Colour light horn-brown. 

 Exposed thoracic segments with a broad black basal band. Post- 

 abdominal segments with a similar band at each suture. Carapace 

 and penultimate joint of raptorial limbs with three broad, dark 

 bands, appearing beneath the surface, a large black blotch on 



