56 



A REVIEW OP THE VOLUTIDAE 



Volnta , Jahrb. deutsch. malak. Gessell- 

 sch., p. 310, species 6I, 1877- 



Adelomelon ancilla Solander, Ball: "A Re- 

 view of the American Volutldae," p. 555> 

 1907. 



Cymbtola ancilla Solander, Pace: Proc. Mai, 

 Soc. London, vol. 5, P. 28, 1902 (An- 

 atomy and radula). 



Alt. (See Chemnitz's figures). 



Hah. Straits of Magellan. It may be that 

 the veritable ancilla does not extend 

 to the upper Argentine coast. The speci- 

 mens in the U.S. National Museum agree 

 exactly with the figures of D'Avila and 

 Lamarck, and come from the Straits of 

 Magellan, 



Shell lighter in weight, broader, 

 spire shorter, body-whorl longer than 

 maiel lanica . VThile ancilla is an old spe- 

 cies adequate material for study is at pres- 

 ent unavailable. An examination of a long 

 series of specimens may reveal that maiel - 

 lanica is merely a subspecies of ancilla. 



Adelomelon beckii (Broderip) 1855 

 (Plate 23, Figure I56) 



Valuta fusiformls Kiener, Icon. Coq. Viv., 



Valuta, p. 41, pi. kg, 1859; not of 



Defrance, I829, or Brocchi, l8l4, nor of 



Swainson, 1822. 

 Valuta festiva d'Orbigny, Voy. Amer. Mer,, 



5, p. 42,6, 1841; not of Lamarck, 1822. 

 Valuta beckii Broderip, Proc. Zool. Soc. 



London, I856, p. 4?; ibid., 1855, p. 58, 



Sowerby: Thes. Conch,, number 50, p. 



205, pl. 54, fig. 104, 1847. Tryon: 



Man. Conch., vol. 4, p. 97, pl. 29, fig. 



109, 1882. 

 Valuta fusifarmis. Lahille: Rev. Mus. de 



la Plata, 6, p. 298 (extras p. 8), pl. 



1, figs. 14, 15j pl. 5, figs. 16-25; 



not pl. 4, 1885; also var. cannexa, p. 



500, pl. 3, figs. 19, 20 (var. ornata 



excl. ) . 

 Valuta ( vymblala) becki. Strebel: Zool. 



Jahrb., 24, heft 2, p. 97, pl. 8, fig. 



53, pl. 10, fig. 55, 1906. 

 Adelomelan beckii. Ball: "A Review of the 



American Volutidae," p.^ 56O, I907. 



Alt. 350 to 575 mm. 



Hab. Argentine coast, especially toward 

 the north; Falkland Islands. 



Nucleus small; spire sub-acute, 

 shell rather thin for its size; similar to 

 A. ancilla; plaits behind edge of columel- 

 la ill-defined, with central portion more 

 excavated than in A. ornata. 



Adelomelon brasiliana (Solander) 1786 

 (Plate 11, Figure 84) 



Valuta brasiliana Solander. Port, Cat,, 

 p. 186, number 5958, 1786. 



Valuta colacynthls Brasiliana Salandrl 

 Chemnitz: Conch. Cab., 11, p. 10, pl. 

 176, figs. 1695, 1696; 1795. 



Valuta colacynthls Dillwyn: Cat. Rec. 



Shells, 1, p. 574, 1817. Lahille: Rev. 

 Mus. de la Plata, 6, p. 307 (extras p. 

 10, 1895; with varieties: lactea; in- 

 termedia; ilabosa (not V. ilobasa Dill- 

 wyn, Cat, Rec. Shells, p. 569, I817); 

 depressa (not V. depressa Lamarck, Ann. 

 du. Mus., Paris 1, p. 479, l802); pseu- 

 domaiellanica ; carinata (not V. carinata 

 Zekeli, 1852); subcarlnata ; alternata 

 and spirabil is . 



V. brasiliana d'Orbigny: Voy. Amer. Mer., 

 5, p. 424, pl. 60, figs. 4-6, 1841. 

 Kiener: Icon. Rec. Shells, valuta, p. 

 31, pl. 30, 1859, Sowerby: Thes. Conch., 

 p. 204, number 28, pl . 54, fig. 98, 1847.,, 

 Reeve-: Conch. Icon., pl. 15, fig. 3^, 

 1849. Tryon: Man, Conch., vol. 4, p. 

 98, pl. 29, figs. 115, 115 (only), 1882. 



Valuta {Cymblola ) brasiliana Crosse: J. de 

 C, 19, p. 500, 1871. Strebel, Zool. 

 Jahrb., 24, heft 2, p. 92, 1906. 



Adelomelon brasiliana Dall : "A Review of 

 the American Volutidae," p. 36I, I907. 



Alt. Up to 200 mm. 



Hab, Shores of eastern South America from 

 Rio Grande do Sul, Brazil, to the mouth 

 of the La Plata and south to the Rio 

 Negro in Patagonia; Maldonado Bay, Uru- 

 guay, young in 10 fathoms sand (Dall). 



Shell globosly ovate, spire very 

 shor't, whorls rudely marked with lines of 

 growth; columella two-plaited; aperture 

 wide, open; color light yellow; aperture 

 milky orange. 



