A REVIEW OP THE VOLUTIDAE 



59 



Valuta maiellanica. Tryon: Man. Conch., 

 vol, 4, p. 97, Pl. 29, figs, 107, 108 

 (copied from Sowerby's figs. 101 and 24) 

 1882. 



Voluta amhtiua. Lahille: Rev. Mus. de la 

 Plata, 6, p. 317 (27 of extras) pl. 8, 

 figs. 163-6, pl. 11, figs. 6, 9, 11; 

 pl. 11, figs. 11-15, 1895, not V. 

 ambiiua (Solander) Sowerby: Mln. Conch., 

 4, p. 135,- pl. 399, fig. 1, I823, or of 

 Maton, Lin. Trans., I8O7, or Lamarck: 

 Ann. du. Mus., 17, p. 77, I8II. 



Voluta ambiiua vars , constricta, pseudo- 

 tuberculata, subnodosa and typlca, La- 

 hille, 1. clt., pp. 27-29. 



Voluta maiellanlca. Strebel : Zool. Jahrb., 

 24, number 2, p. 127, pl, 8, figs. 17- 

 24, 26-32; pl. 9, figs. 36, 4l; pl. 10, 

 figs. 53, 54, 59, 1906. 



Alt. 140 mm. 



Hab. Argentine coast, near the mouth of 

 the Rio La Plata, from low water to ten 

 fathoms, burrowing in sandy bottom; south 

 to Magellan Straits (Punta Arenas, etc.), 

 and Woodcock Island, Tlerra del Puego; 

 Falkland Islands at Port Stanley. 



Adelomelon tuberculata (Swalnson) 1821 

 (Plate 11, Figure 85) 



Voluta tuberculata Swalnson, Exotic Conch., 

 p. 19, pl. 29, 1821, Wood: Ind. Test. 

 Suppl., Voluta, number 22, 1828. Kiener: 

 Icon. Voluta, p. 63, pl. 31, 1839- 

 Sowerby: Thes. Conch., vol. 1, p. 204, 

 pl. 1, figs. 49, 50, 1847. 



Voluta [cymblola) tuberculata Swainson: 

 Exotic Conch., ed. 2, p, 19, pl. 29, 

 l84l, Catlow: Conch. Nomen., p. 306, 

 number 56, 1845. Strebel: Zool. Jahrb., 

 24, heft 2, p. 102, pl. 9, figs. 38, 39, 

 47, 1906. 



Voluta americana Reeve, Proc. Zool. Soc. 

 London, p. 2, pl. 33, figs. 1, 2, I856. 

 Tryon: Man. Conch., vol. 4, p. 94, pl. 

 28, figs. 100, 101, 1882 (nepionic shell). 



voluta cle'ryana Petit: J. de C, 5, P- l82, 

 pl. 6, figs. 3, 4, 1856; Crosse, ibid., 

 19, p. 294, 1871 (young undeveloped 

 specimen) . 



Voluta tuberculata Lahille, as of Wood, 

 with varieties ferruiinea, deciplens, 

 fuliurea and pseudofusl formis. Rev. Mus. 

 de la Plata, 6, pp. 340-42 (extras. 



pp. 30-32) pl. 1, figs, 12, 13; pl, 7, 

 figs. 140-146; pl. 12, figs. 3-6, 1895. 

 Adelomelon tuberculata. Dall : "A Review 

 of the American Volutidae," p. 36O, I907. 



Alt. up to 150, diam. 100 mm. 



Hab. Southern Patagonia and northward on 

 the Argentine coast, and, in deeper 

 water, to Cape San Thome, Brazil, about 

 south latitude 22°, 



According to Lahille, this species 

 has from three to five plaits upon the col- 

 umella. The species seems closely related 

 to A . brasi I iana and A . becki i . 



Adelomelon mangeri (H, B. Preston) 1901 

 (Plate 12, Figure 89) 



Cymbiola manieri Preston, Proc. Mai, Soc, 

 London, vol, 4, p. 237, 1901 (fig, 

 shell, p. 237). 



Alt. 103, diam. 56 mm. 



Hab. Falkland Islands, 



Holotype in the British Museum. 



Shell irregularly fusiform; spire 

 long and deformed; whorls about six, sharp- 

 ly increasing, rounded, marked with very 

 irregular growth-lines, but destitute of 

 other sculpture; sutures very irregular; 

 texture of the shell, rather horny, or cre- 

 taceous, externally weathered, interior 

 glazed; columella folds, three; callous, 

 broadly expanded. 



The nearest allies of this form 

 are and I la, maiellanica and brasi liana . It 

 differs, however, from the two latter, by 

 the length of its spire, and by the absence 

 of nodulations. Moreover maiellanica has 

 very distinct, though irregular, color mark- 

 ings, while the present species is entirely 

 destitute of painting, and presents a very 

 worn, and weathered appearance, which seems 

 to be quite normal, but is exceedingly 

 characteristic. The form of manferi distin- 

 guishes it readily from and I la. 



Genus BOREOMELON Dall I918 

 Boreomelon Dall, Proc. Biol. Soc. Wash., 



