54 



A REVIEW OP THE VOLUTIDAE 



Amorla spenceriana Gatllff 1908 

 (Plate 25, Figure I76) 



Valuta {Amorla) spenceriana J. H. Gatllff, 

 Victorian Naturalist, vol. 25, no. 5, 

 September 10, 1908 (figured on pi. k) . 



Alt. 55> dlam. 21 mm. 



Hab. North Queensland (j. F, Bailey). 



Shell white, fusiform, smooth, pol- 

 ished, apex blunt, spire short, whorls six 

 and one-half. Including the nucleus; suture 

 well defined on the later whorls, and be- 

 coming strongly channeled at the aperture; 

 outer lip anteriorly expanded, edge acute, 

 body whorl somewhat inflated at the upper 

 portion; columella with three ascending 

 plaits. Marked sparsely with light yellow- 

 ish-brown, a few irregular lineal markings 

 running down from the suture, and two ser- 

 ies of broad equidistant bands of distant 

 zig-zag lines on the body whorl; spotted 

 below the suture, spots ceasing on the pen- 

 ultimate whorl, the remaining spiral whorls 

 being without markings; salmon tinted in 

 the interior. 



According to Gatllff this species 

 may readily be distinguished from its con- 

 geners by its expanded lip, only having 

 three plaits, its short spire, also the 

 outline and marking. 



Its nearest ally appears to be 

 Amorla canaliculata McKoy but E. A. Smith 

 of the British Museum, who examined spen- 

 ceriana considered it to be a valid species. 

 It was named in honor of Professop W. Bald- 

 win Spencer, one time president of the 

 Field Naturalist's Club of Victoria. Holo- 

 type in the Gatllff collection. In the 

 Australian National Museum there are two 

 examples, without definite locality, which 

 were purchased from Thatcher in the year 

 1880. They are larger and more solid than 

 the holotype. 



Amorla undulata undulata (Lamarck) 1844 

 (Plate 6, Figure 52} 



Voluta undulata Lamarck, An. s. Vert., ed. 

 Deshayes, vol. 10, p. 401, 1844. Reeve: 

 Conch, Icon., pi. 11, fig. 26, 1849. 

 Sowerby: Thes. Conch., vol. 1, p; 196, 

 pi. 48, figs. 28, 29. Tryon: Man. 

 Conch., vol. 4, p. 92, pl. 28, fig. 88, 



1882. Chenu: Man. de Conch., p. I88, 

 fig. 965, 1859. Maxwell Smith: World- 

 Wide Sea Shells, p. 65, figs. 879 a-b, 

 1940. Watson: Voyage H.M.S. Challenger, 

 part Gastropoda, p. 257, 1885. 



Alt. 75-85 mm. 



Hab, South Australia; Tasmania. 



Nucleus small, planorboid, smooth, 

 channeled, pale color; beginning of the 

 first post-nuclear whorl indefinite; suture 

 lightly impressed; exterior surface ordina- 

 rily cream white, but often subject to iron- 

 colored stains, surface covered with a pat- 

 tern of separated, undulating, chestnut - 

 brown lines, which extend upon the spire to 

 the nucleus; columella with four strong, 

 well-rounded, primary plaits, the anterior 

 slightly descending, occasionally with one 

 or two additional secondary plaits, always 

 between the three, posterior, primary 

 plaits; labrum, well-thickened and exter- 

 nally forming several, longitudinal growth- 

 layers, the external pattern hardly extend- 

 ing over this area, also sometimes showing 

 an independent pattern; Interior of the 

 shell, cantaloupe orange color. 



Amorla undulata angasil (Sowerby) 

 (Plate 6, Figure 48) 



Voluta aniasit Sowerby, Thes. Conch., vol. 

 3, 1st suppl., p. 271, fig'd. vol. 1, 

 pl. 48, fig. 29. Tryon: Man. Conch., 

 vol. 4, p. 92, pl. 28, fig. 87, 1882. 



Voluta (Amorla) aniasl Angas : Port Jackson 

 Moll., Proc. Zool. Soc. London, I867, 

 p. 193, number 43. 



Alt. 75 mm. 



Hab. Australia, the metropolis being Port 

 Lincoln. 



A more compact and angulate shell 

 than S. undulata undulata . Sowerby's fig- 

 ure shows three distinct, overlaid, revolv- 

 ing zones of darker color. 



Amorla undulata sclateri (Cox) I869 

 (Unflgured) 



Voluta sclateri Cox, Proc. Zool. Soc. London 



