Iu,ss;/ Vnhltes. 193 



layers as well as in the Inwrst. As is visually the case when iiuiuerouR 

 examples can ]»■ uatliernl of a sjjeeies. varietal forms can he marked 

 off, ami this has alicady l)eeii very a])ly done by Sir F. McCoy. At 

 least two (if his \\c]l-<lcfiiied varieties can he identified. 



■2. Voi.LTA .\\Ti(iN(;iTLATA, var. i\[)ivis.\, .McCoy. 



1N7-1. r. (iiifirnnjiilatd var. iiu/ir>'sa. .McCoy. Piod. Pal. 

 Vic. Dec. i., p. 25. 

 Ohs. — This form is a nari'ow type witli fewer and moie sigmoidal 

 rihs. The sjdial stiiar aie confined to the anterior base, re.sulting in 

 a smooth polislu'd hody-whoil and lihs. and the absence of the- 

 sub-sutural sulcus. This form is commonly represented at Table 

 Cape. The type of this variety is in tlie National Museum, Mel- 

 bourne, and was ohtained from the Sirring Creek or Bird Rock 

 Beds, neai- (Teeloiig-. 



3. VoLUT.\ .VNTICINGULATA, var PERSULCATA, McCoy. 



18T-i. V. (nificingidata, var. i^ersulcafa, McCov. Prod. 

 Pal. Vic. Dec. i., p. 25. 

 Obs. — The type of this variety is in the National .Museum, Mel- 

 bourne, and was obtained from the Spring Creek Beds, south of 

 Geelong. The striking features of this form are the more numerous 

 and straighter costae and the strongly-developed spiral groovings 

 over tlie whole of the body whorl and spire. Usually a much rarer 

 form tluui the foregoing. 



4. VoLUTA WELDii, T. Woods. (PI. XX., Fig. 1). 

 1S75. r. ireJfJil. T. Woods. Proc Roy. Soc. Tas., p. 24, 

 pi. 1. f. 2. 

 Obs. — Another very cfimmon form at Table Cape showing an 

 interesting range of variation, (juite sufficient to warrant a similar 

 treatment to that adopted in the case of V . anficlngulnta, McCoy. 

 The original description of this species is of an extremely meagre 

 iharacter. but the figure clearly represents the bioad. solid, and 

 heavily, l)ut sparsely nodose form, and as tlie type is in the Hobart 

 Museum there can be no doubt whatevei- as to the form T. Woods 

 intended to )epi-esent his species. 



5. VoLUTA WELDii, var INTERMEDIA, var nov. (PI. XX., Figs. 2, 3)- 

 Shell much naiiower than the typical form, with a shorter and 

 more blunted apex, more closely and acutely nodose, nodes number- 

 ing nine to twelve on the body-whorl as against about seven in the 



14 



