704 STUDIES ON AUSTRALIAN MOLLUSCA, 



Since writing the above I have taken this species in 15 fathoms 

 off the Palm Islands and have seen examples gathered at Bunda- 

 berg by Dr. T. H. May. Probably this, not P. kestevejii, was the 

 unnamed species collected by the Challenger in Torres Straits. 



H PhILINE TRAPEZIA, n.sp. 



(Plate xxxiv., figs. 22, 23, 24.) 



Shell minute, thin, diaphanous, trapezoidal, the base meeting 

 the side at almost a right angle, with a narrow umbilical groove. 

 Colour pale yellow. Sculpture : spire puckered into a few coarse 

 longitudinal ridges, the remainder of the shell densely covered 

 with close fine raised spiral lines, parted by interstices of equal 

 breadth; on high magnification the raised lines develop into 

 chains (fig. 24). The lower columella follows a C curve; above 

 the umbilical groove it stands out from the whorl as a wavy ridge, 

 terminating posteriorly in a sharp transverse callous ledge. The 

 spire is plane, of two whorls separated by a deeply channelled 

 suture; the apex is immersed. Length 1-9, breadth 13 mm. 



Jlab. — Off Shark Point, Sydney Harbour; 12 fathoms, on a 

 bottom of mud and weed (J. Brazier). 



T y p e to be presented to the Australian Museum. 



This species is apparently allied to the British P. scabra, 

 Miiller. Probably Scaphander^ multistriatus, Brazier (these 

 Proceedings, 1900, p. 510) should follow this into Philine. 



Marinula patula, Lowe. 



(Plate xxxiv., fig. 18.) 



The synonomy of this species is given by Tate & May (ante, 

 p. 419). Mr. Brazier tells me that he was informed by Mr. A. E. 

 Smith that Auricula cymbae/orrnis, Recluz (Pfeifi*er, Mon. Auric, 

 p. 63) also belongs here. As the only illustration of this shell is 

 in a rare work not generally accessible to students, I add a draw- 

 ing of an old and incrassate specimen from Middle Harbour, 

 10-5 mm. in lenojth. 



