272 Freda rick C/utpinan : 



for some beautifully preserved specimens from the Filter Quar- 

 ries, found in material collected by Mr. K. J. Bradley, of South 

 Australia. 



Spiroplecta ><ip]i()nifera, Brady sp. PI. III. Fig 1. 



Teitularki sij^honiftra, Brady, 1881, Quart. Journ. Micr. Sci., 

 vol. XXL, N.S. p. 53. Id., 1884, Rep. ChalL, vol. IX., p. 

 362, pi. XLIL, Figs. 25-29. Chapman, 1907, Journ. 

 Linn. Soc. Lond. Zool., vol. XXX., p. 26, pi. IIL, Fig. 56. 



In his description of the above form Dr. Brady mentions that 

 it is "tapering and pointed at the aboral end.' A close exami- 

 nation of the Batesford specimens shows the pointed end to be 

 invariably flattened. Upon cutting vertical sections through 

 the test in the plane of compression, it was seen that each com- 

 menced with a megalospheric chamber, followed by a short 

 spiral, and that this was immediately succeeded by the normal 

 textularian series. In a specimen examined in this section, the 

 megalosphere has a diameter of 62 u. Although formerly re- 

 ferred to the genus Tertularia, this species, on account of the 

 evidence now brought forward, should be relegated to the 

 genus Spirojjlecta. 



As a recent form Dr. Brady records it from a few localities 

 in the S. Pacific, and in the Gulf of Suez, at depths from 15-40 

 fathoms. The writer found it at Funafuti at various depths 

 down to 150 fathoms, where it was most abundant. It appears 

 to be confined to coral-reef areas, and consequently only found 

 in tropical or sub-tropical waters, It has occurred in the fossil 

 condition in the Balcombian of Port Phillip. 



Common in both Quarries. 



Spiroplecta sayittula, Def ranee, sp. 



Tertuhrria sagittuht, Defrance, 1824, Diet. Sci. Nat. vol. 

 XXXIL, p. 177; vol LIlL, p. 344; Atlas Conch., p. 

 XJIL, Fig. 5. Spiroplecta sagittula, Defr. sp., Wright, 

 1902, Irish Naturalist, vol. XI , p. 211, pi. III., Figs. a-e. 

 Chapman, 1907, Journ. Linn. Soc. Lond. Zool., vol. 

 XXX., p. 27, pi. IIL, Figs. 58, 59. 



