600 STUDIES ON AUSTRALIAN MOLLUSCA, 



the prominent lyne, light orange within the aperture. Sculpture : 

 longitudinal ribs, about ten to a whorl, mount the spire obliquely, 

 are comparatively stronger on the earlier whorls, undulate the 

 suture, attain sudden prominence at the shoulder and vanish 

 towards the base. Crossing these, four prominent lyrse, two of 

 which ascend the spire, are produced into tubercles. Between 

 the lyrae are fine, densely squamose threads. An elevated fasciolei 

 winds round the canal. Protoconch of the sinusigera type, broad 

 with rounded whorls, brown, smooth and glossy. Aperture ovate, 

 the columella expanding laterally to a free edge and spreading 

 above into a broad sheet of callus. Inner lip with a few den- 

 ticules, variable in number and development. Length 33, breadth 

 16 mm. 



Hah. — The species ranges from Sydney to Torres Straits; the 

 adult shell here figured is from Sydne}^ Harbour; the larva (fig. 5) 

 was collected at Caloundra, Queensland, by H. L Kesteven. 



Type. — To be presented to the Australian Museum. 



On a priori grounds it is improbable that Kiener knew the 

 shell here described as P. pseudamt/gdah', for he was unacquainted 

 with the Queensland fauna, but was well provided with material 

 from North-west Australia. Kiener did not know^ the locality of 

 his P. amygdala: his figure and description do not suit the East 

 coast shell with which the London writers have identified it. On 

 the contrary, Kiener's account agrees well with a West Australian 

 species related to, jjossibl}^ even a variety of, Buccnuwi avellana, 

 Reeve (Conch. Icon, iii., Buccinum, 1846, PL viii., sp 52), and 

 which has been obtained by Mr. A. U. Henn at Geraldton. W.A. 

 Purpura amygdala, as I recognise it, is easily distinguished from 

 the species above described by wanting the rough scabrous 

 sculpture, by being shorter and relativel}' broader, and liy having 

 fewer and stouter lyr?e within the lip. 



Capulus austhalis, Lamarck. 



Patella australis, Lamarck, An. s. Vert, vi., 1^19, pt. i., p. 335; 

 Delessert, Recueil, 1841, pi, xxiii., f. ll-a, 6, c. (Not Hipponyx 

 australis of Quoy ct Gaimard, and subsequent authors). 



