510 MOLLUSCA OF MAST HEAD REEF, QUEENSLAND, II., 



examined. His figure was possibly based on Pyrene melvilli 

 Hedley* { = Columbella suhphilodicia Hervier), which I took in 

 5-10 fathoms off the Hope Islands. The two species have a 

 general resemblance, but in P. abijssicola the colour is disposed 

 in angles, while in P. melvilli it takes the form of bars. The 

 species is abundant in 17-20 fathoms round Mast Head; the 

 collection is divisible into two series, probably sexual, of a 

 stouter and of a more slender form. These are shown in the 

 accompanying drawings from the brush of my friend, Mr. A. R. 



McCulloch. 



Pyrene lurida, n.sp. 



(Plate xvii., fig. 19.) 



Shell small, oval, thin, semitransparent, glossy. Whorls five, 

 slightly shouldered. Colour, uniform, clear cinnamon-brown 

 with a pale, narrow, peripheral zone. Sculpture : the anterior 

 extremity is wound round with ten small spiral cords; the 

 remainder at first appears smooth, but on high magnification is 

 found to have minute spiral striae reticulated by delicate growth- 

 lines. Aperture oblong, outer lip thickened externally and with 

 three tubercles internally. Columella smooth, straight. 

 Height 3-4 mm.; breadth 1-5 mm. 



A few imperfect specimens were dredged in 17-20 fathoms off 

 Mast Head Island. I have derived my figure from a perfect 

 example gathered by the late Mrs. Starkey in Middle Harbour, 

 Sydney. 



Pyrene gemmulifera, n.sp. 



(Plate xix., fig. 44.) 



Shell small, narrowly ovate, very solid, slightly turreted. 

 Colour uniform chocolate-brown. Whorls five, of which two 

 compose the protoconch. Sculpture : second whorl of the proto- 

 conch with fine radial riblets, adult whorls with elevated, 

 continuous, perpendicular ribs, about twenty to a whorl. These 



*Hedley, Mem. Austr. Mus. iii. 1899, p.463, fig.38. 



