288 



Triphora festiva, A. Adams. 



Triphoris festiras, A. Adams, Proc. Zool. Soc, London, 1851, 

 p. 278. Type locality — Port Lincoln (Mus. Cuming). Angas, 

 Proc. Zool. Soc, London, 1865, p. 172. 



Triforis festiva, A. Adams, Tate and May, Proc. Linn. Soc, 

 New South Wales, 19(J1, vol. xxvi., part 3. p. 387, Tasmania. 



Dredged in 40 fathoms off Beachport, 1 good, albino ; 

 in 6 fathoms off St. Francis Island, 3 poor. This is a lit- 

 toral form. Taken on the beach Yankalilla, Gulf St. Vin- 

 cent, Spencer Gulf, many good : and at Scales and Smoky 

 Bays, and St. Francis Island in the Aiistralian Bight, a few- 

 good. 



The type was probably an immature shell, which would 

 have a flat base ; when mature the species has a rounded base 

 with two simple spirals, besides the sujira-sutural peripheral 

 band. It has a four-whorled, brown, acutely-conical proto- 

 conch, the first turn of which is smooth, the others unicarin- 

 ate wdth axial bars. The shell when apex and base are per- 

 fect may be 3'5 mm. long and 1*3 mm. broad, or 64 mm. 

 long and 2'1 mm. broad. In the larger forms a threadlet 

 arises in the later whorls between the two sjDiral pearl rows 

 and becomes a third smaller row. 



Triphora ampulla, Hedley. 



Triphora ampvUa, Hedlev, Proc Linn. Soc, New South 

 Wales, 1903 (1902), p. 615, pi. xxxii., figs. 38 and 39. Type 

 locality — Wat.son's Bav, Port Jackson. Gatliff and Gabriel, Proc. 

 Roy. Soc, Victoria,' 1908. vol. xxi. CN.S.), part 1, p. 378, 

 Port Phillip. 



Dredged in Gulf St. Vincent, 11 poor: 14 fathoms, Ard- 

 rossan, 1 good : .55 fathoms, Cape Borda, 3 poor : 90 fath- 

 oms. Cape Jaffa, 2 perfect; 110 fathoms, BeachjDort, 2 poor. 

 Taken on St. Francis Island beach, 2 poor. 



This seems to be a deeper-water form than T. festiva. 

 The protoconch may be brown instead of white as in the type. 



Triphora maculosa, Hedley. 



Triphora maculosa, Hedlev, Proc. Linn. Soc, New South 

 Wales. 1903 (1902), part 4. p." 614, pi. xxxii., figs. 32 and 33. 

 Type locality — Middle Harbour. Port Jackson. Pritchard and 

 Gatliff, Proc Roy. Soc, Victoria, 1906 (1905), vol. xviii. (N.S.), 

 p. 61, Victoria. 



Dredged in 9 fatlioms off Edithburgh, 3 good ; in Gulf 

 St. Vincent, depth unrecorded, 14 good ; in 55 fathoms off 

 Cape Borda, 1 poor: in HO fathoms off Beachport, 1 poor. 

 Taken on St. Francis Island beach, 22 good. 



Mr. Hedley gives the length of his type as 6'7 mm., but 

 some of my specimens reach 9'2 mm. 



