14 PROCEEDINGS OF THE NATIONAL MUSEUM vol. 121 



1601 "An extremely fine pair of a species of perforated Patella, the 

 only two that are known, named Macroschisma, Humphreifs 

 Conch. Plate 7. fig. 3. 3." 

 Nomen dubium 



Not Patella macroschisma Holten, 1802, nor Dillwyn, 1817 { = Macro- 

 schisma maxima A. Ad., 1850). 



An examination of the figures in DaCosta's "Conchology or Natural 

 History of Shells" [for an explanation of the authorship of this work, 

 see the "Catalogue of the Library of the British Museum (Natural 

 History)," 1922, vol. 6, p. 218] shows a species of the genus Macro- 

 schisma with a strongly sinuate posterior end. At first I felt that 

 Lightfoot's name should replace Dolichoschisma munita Iredale (1940, 

 p. 431) restricted to Western Australia (Cotton, 1959, p. 79) since this 

 is the only species known to me with such a sinuate posterior end. 



Because, however, this part of Australia was not scientifically 

 explored until Baudin's expeditions at the beginning of the nineteenth 

 century, it seems unhkely that specimens from these coasts could have 

 reached London in the 1770s. As these figures are unaccompanied 

 by any textual material that might furnish us with a clue, I am led to 

 the conclusion that either an abnormal specimen was figured or that 

 the drawing is a poor and misleading one. For this reason I feel this 

 name should be regarded as a doubtful one. 



1620 "Three rare species of Conus in pairs . . . Leoninus, ibid. 

 KnorrlU. 12. 5" . . . ." 

 Conus striatus Linnaeus, 1758 



Conus leoninus [Lightfoot, 1786], p. 72. 

 See Kohn, 1963, pp. 161-162. 



1705 "Four cards of rare species of Voluta, viz. . . . filosa, S. 

 Martyn,vol. I. fig. 22. 1." 

 Mitra (Cancilla) filaris (Linnaeus, 1771) 



Vohda filosa Born, 1778, p. 212. 

 Voluta filosa [Lightfoot, 1786], p. 76. 



1709 "Patella Calyptra, vol. I. Alartyn, fig. 18, k . . . ." 

 Nomen dubium 

 This figiu"e seems to resemble most nearly a specifically indeter- 

 minable specimen of Capulus which has assumed the nodulose sculpture 

 of the shell that formed its substratum. 



1711 "Voluta . . . angulata, S. Martyn, vol. IV, 1325." 

 Turbinella angulata (Lightfoot, 1786) 



Voluta angulata [Lightfoot, 1786], p. 76. 

 Voluta scolymus Gmelin, 1791, p. 3553. 

 Xancus angulatus Solancler. — Abbott, 1950, p. 204. 

 Not Voluta angulata Swainson, 1821 = Zidona dufresnei (Donovan), 

 1823). 



