X 
xX PRINCIPAL ABBREVIATIONS. 
Sw. (or Swarn. or Swarns.) Mat. Swainson’s Treatise on Malacology, 1840. 
—— Pun. Mac. Swainson in the Philosophical Magasine and Journal, 1823. 
— Quart. J. Sc. 1823. Swainson on Ancillaria, &c. in the Quarterly Journal 
of Science, vol. xviii. 1825. 
» —— Z.I. Swainson’s Zoological Mlustrations. Series 1, from 1820 to 1823: series 
2, from 1829 to 1833. 
—— Z.P. Swainson in the Proceedings of the Zoological Society. 
Tuomrs. or THompson. Thompson in the Annals of Natural History, vols. v. 
(1840), xiii, (1844), xv. 1845. 
TuorrE B. M.C. Thorpe’s British Marine Conchology, 1844. 
T. L. ‘Transactions of the Linnean Society of London (vol. viii. chiefly). 
TroscuEeLt, Wira. Arc. Nat. ‘Troschel in Wiegmann’s Archiv. fur Naturge- 
schichte: continued by Troschel. 
Turt. Turton in the works cited; occasionally also in the Magazine of Natural 
History (vol. vi.) 
— Dic. (or C. Dic. or Concu. Dic.) Turton’s Conchological Dictionary of the 
British Islands, 1819. 
—— D. B. (or Dita, Br.) Turton’s Dithyra Britannica, often quoted as British 
Bivalves, 1822.* Reprinted verbatim in 1848 (best edition for plates). 
— Man. Turton’s Manual of the land and freshwater shells of the British 
Islands, 1831. 
—— Z.J. Turton on supposed new British shells, in the Zoological Journal. 
VAL. or VALEN. or VALENCIENNES. Valenciennes in the works cited; occasion- 
ally also for certain names in the Index to the figures in the Encyclopédie 
Meéthodique. 
— Hume. (or Z. Hume.) Valenciennes in the ‘ Recueil, &c Zoologie’ of Hum- 
boldt and Bonpland’s travels, ended in 1832. 
— M.S. Unpublished names of Valenciennes upon tablets of shells in the 
French Museum, 
— Venus (or Voy. Venus). Valenciennes in the Voyage dela Venus. From 
1846. 
Van BenepEN. Vanbeneden’s Memoire sur le Dreissena in the Annales des 
Sciences Naturelles, 1835. 
Watcu, Natrurr. Walch in the Naturforscher. No Latin names. 
Wark. T. M. Walker’s Testacea minuta rariora Sandvicensis, 1784. 
Witiiamson. Williamson in the Magazine of Natural History, vol. vi. 
Woop, G. C. Wood’s General Conchology, 1815. 
— or Woop, I. T. (or Inp. Tres.) Wood’s Index Testaceologicus, Ed. 1, (text) 
1818; Ed. 2, with the plates and supplement in 1828. 
Woopw. or Woopwarp. Woodward’s Manual of the Mollusca, pt. i. 1851: pt. 
li. 1854. 
ZincL. Ziegler in Rossmasslers’s Iconographie. 
Zoot. BeEcu.—Beech. Zool. 
Zorn Naturr. Zorn in the Naturforscher, vol. vii. No Latin specific names. 
